Data Center Rack Power Distribution Unit (PDU) Market Size and Share

Data Center Rack Power Distribution Unit (PDU) Market Analysis by Mordor Intelligence
The data center rack power distribution unit (PDU) market size is expected to increase from USD 2.78 billion in 2025 to USD 3.01 billion in 2026 and reach USD 4.62 billion by 2031, growing at a CAGR of 8.96% over 2026-2031. Momentum stems from hyperscale expansion, high-density AI workloads, and liquid-cooling adoption, all of which demand redesigned power delivery at the rack level. Growing electricity expense, now equal to 40-50% of total site operating cost, keeps power-usage effectiveness (PUE) in sharp focus and accelerates the shift toward intelligent units that enable real-time insight and remote control. Vendors are extending firmware capabilities to embed machine-learning models that predict breaker trips and guide dynamic load shedding, thereby turning PDUs into active grid participants rather than passive distribution strips. The competitive field shows moderate consolidation because the top five suppliers account for 55-60% of global revenue, yet niche entrants win share in segments below 10 kW where price sensitivity remains acute. Liquid-cooling convergence, retrofit demand in legacy sites, and sovereign-cloud mandates together create incremental volume, positioning the data center rack power distribution unit market for durable mid-single-digit growth beyond the forecast horizon.
Key Report Takeaways
- By construction, smart PDUs led with 61.42% revenue share in 2025; basic PDUs are forecast to trail as the smart segment advances at a 9.43% CAGR to 2031.
- By phase, three-phase equipment accounted for 58.32% of the data center rack power distribution unit market share in 2025 and is projected to post a 9.26% CAGR to 2031.
- By tier type, tier 3 facilities recorded the strongest outlook and are poised for a 9.76% CAGR through 2031, while tier 1-2 sites jointly accounted for 40.42% of the share in 2025.
- By data-center size, hyperscale campuses are on track for a 9.12% CAGR to 2031, whereas large data center accounted for 42.24% of the market share in 2025.
- By data-center type, colocation operators held 44.65% of the share in 2025; enterprise and edge environments are projected to expand at a 10.32% CAGR through 2031.
- By rack density, the above-20 kW segment is forecast to climb at a 10.04% CAGR to 2031, outpacing the 10-20 kW segment that maintained 48.43% share in 2025.
- By geography, Asia-Pacific commanded 40.13% revenue in 2025 and is anticipated to log a 10.14% CAGR through 2031, widening its lead over North America and Europe.
Note: Market size and forecast figures in this report are generated using Mordor Intelligence’s proprietary estimation framework, updated with the latest available data and insights as of January 2026.
Global Data Center Rack Power Distribution Unit (PDU) Market Trends and Insights
Drivers Impact Analysis
| Driver | (~) % Impact on CAGR Forecast | Geographic Relevance | Impact Timeline |
|---|---|---|---|
| Investments in Hyperscale Data Centers | +2.4% | Global, notably North America, Asia-Pacific, Middle East | Medium term (2-4 years) |
| AI-Driven Energy Management Integration | +1.8% | North America and Europe, spillover to Asia-Pacific Tier 1 cities | Short term (≤ 2 years) |
| High-Density Compute Accelerator Adoption | +2.1% | Global, early use in North America hyperscale sites and Asia-Pacific manufacturing edges | Medium term (2-4 years) |
| Shift to Liquid Cooling with Hybrid CDU-PDU | +1.6% | North America and Europe, pilot Asia-Pacific | Long term (≥ 4 years) |
| Power-Availability Mandates and Software-Defined Data Centers | +1.2% | Global, strongest in Europe and North America | Medium term (2-4 years) |
| Rising Edge-Data-Center Deployment | +1.5% | Asia-Pacific, North America, Middle East | Short term (≤ 2 years) |
| Source: Mordor Intelligence | |||
Investments in Hyperscale Data Centers Continuing to Spur Demand for Smart PDU Installations
Hyperscale operators have accelerated capital plans, with single-campus builds now topping 1 GW. Each site deploys thousands of intelligent PDUs that stream high-resolution telemetry into cloud analytics platforms, letting operators balance phase load, enforce green-energy scheduling, and monetize power data within usage-based billing models. Price premiums on three-phase outlet-level switching hardware average 40-60% over basic units, yet total cost of ownership falls as remote firmware updates eliminate technician truck rolls. Adoption permeates established clusters in Virginia, Tokyo, and Frankfurt, and is spreading to Abu Dhabi and Kuala Lumpur, where sovereign-cloud rules require in-country infrastructure.[1]Amazon Web Services, “Global Infrastructure,” AWS.AMAZON.COM
Integration of AI-Driven Energy Management for Rack-Level Distribution
Edge AI chips embedded inside next-generation PDUs process voltage, harmonic, and thermal readings locally, issuing commands in microseconds to curtail non-critical loads or route power to healthier phases. This closes the loop between compute orchestration and electrical distribution, allowing container platforms to incorporate energy as a real-time scheduling constraint. Colocation providers capitalize on sub-rack metering within ±1% accuracy, enabling transparent tenant billing and supporting greener portfolio financing.
Increasing Adoption of High-Density Compute Accelerators Demanding Advanced PDUs
AI training servers featuring eight NVIDIA H100 or H200 GPUs routinely draw 10-12 kW each. Racks now exceed 80 kW, a demand that legacy single-phase strips cannot satisfy. Modern PDUs deliver 60-amp, 415-V three-phase feeds through C39 outlets, include arc-fault protection, and integrate busbar connectors that minimize IR losses. Capacity growth locks in recurring replacement cycles because older facilities refit strips every three years instead of the historical five-year cadence.
Shift to Liquid Cooling Requiring PDU Redesign for Hybrid Power and Cooling Delivery
As direct-to-chip and immersion systems proliferate, vendors fuse coolant manifolds with power modules in compact 6U chassis. Built-in leak detectors and flow sensors inform machine-learning dashboards that orchestrate both thermal and electrical loads. Safety certification to IEC 61439 becomes pivotal because coolant and high-current conductors coexist in tight envelopes. Early adopters cite 30% higher compute density per square meter and shorter deployment timelines because integrated units ship pre-tested.[2]Vertiv, “Geist rPDU with Xerus Technology,” VERTIV.COM
Restraint Impact Analysis
| Restraint | (~) % Impact on CAGR Forecast | Geographic Relevance | Impact Timeline |
|---|---|---|---|
| Rising Rack-Power Densities Exceeding Legacy Floor Ratings | -1.4% | Global, acute in North America and Europe retrofits | Short term (≤ 2 years) |
| Cybersecurity Concerns Around Networked PDUs | -1.1% | Global, heightened in finance and government | Medium term (2-4 years) |
| Faster Refresh Lifecycle than Profitable Facility Life Expectancy | -0.8% | Global, especially enterprise and colocation | Long term (≥ 4 years) |
| Semiconductor-Component Supply Volatility | -0.9% | Global, most severe in Asia-Pacific manufacturing hubs | Short term (≤ 2 years) |
| Source: Mordor Intelligence | |||
Rising Rack Power Densities Exceeding Legacy Data Center Floor Ratings
Facilities built before 2020 feature 5-8 kW design envelopes and floor loading below 200 W per square foot; they now confront 20-30 kW demands that require structural reinforcement, busway replacement, and utility transformer upgrades. Retrofit budgets often reach USD 500-800 per square foot, extend over 6-12 months, and interrupt revenue-generating operations. Operators in land-constrained metros such as Singapore and London weigh the cost of upgrades against edge or greenfield deployment, delaying PDU revamps and suppressing overall unit volume.[3]Uptime Institute, “Global Data Center Survey 2024,” UPTIMEINSTITUTE.COM
Cybersecurity Concerns Around Networked PDUs
Ethernet-connected PDUs introduce additional attack surfaces. Recent vulnerability disclosures revealed hard-coded credentials and unencrypted SNMP channels that could allow malicious power cycling or data exfiltration. Compliance bodies now mandate encryption, segmentation, and multifactor authentication, but some financial and public-sector entities disable remote management functions, eroding the energy-optimization value proposition. Vendors must harden firmware, adopt signed updates, and integrate zero-trust frameworks to restore buyer confidence.[4]Cybersecurity and Infrastructure Security Agency, “PDU Firmware Vulnerabilities Analysis 2024,” CISA.GOV
Segment Analysis
By Construction: Smart PDUs Capture a Premium as Operators Monetize Energy Data
Smart units already command with 61.42% market share in 2025, and their higher average selling price continues to lift the data center rack power distribution unit market size for this segment. Intelligent strips enable granular kilowatt-hour tracking, outlet-level switching, and predictive maintenance, capabilities that underpin usage-based colocation pricing and hybrid-cloud orchestration. Service providers report revenue-per-cabinet gains of 12-18% after enabling sub-rack billing. Basic PDUs forecast to advance at a 9.43% CAGR to 2031, viable in low-density and cost-sensitive sites, yet their share erodes as cloud-hosted management portals reduce the total cost of ownership for smart options. Over the forecast horizon, smart units accrue incremental share each year as firmware subscription models make them financially attractive even for small enterprises.
PDUs now integrate with orchestration tools such as VMware vRealize and Red Hat Ansible, creating a feedback loop between IT workloads and electrical capacity. By controlling server spin-up based on real-time power data, operators lower stranded capacity and defer transformer upgrades, a major incentive when utility lead times stretch to 18-24 months. The convergence of AI analytics, secure connectivity, and regulatory push toward PUE transparency further locks in the smart trajectory, ensuring that the data center rack power distribution unit (PDU) market retains this premium profile.

By Phase: Three-Phase Dominance Reflects High-Density Compute Proliferation
In 2025, three-phase equipment held a 58.32% share of the data center rack power distribution unit market and is set to achieve a 9.26% CAGR through 2031. Three-phase architectures satisfy modern rack power needs by distributing load across multiple conductors and elevating the supply voltage to 415 V or 480 V, which halves resistive losses relative to single-phase 208 V. Hyperscale clouds standardized on this topology in 2025 to achieve densities beyond 15 kW and maintain headroom for future liquid-cooled AI servers. Incentive programs in California, New York, and Germany further accelerate transition by rewarding sites that meet sub-1.2 PUE thresholds, which typically require three-phase distribution. Consequently, three-phase remains the cornerstone of capacity expansions and greenfield builds, solidifying its majority position in the data center rack power distribution unit (PDU) market.
Single-phase remains relevant at the edge and in small enterprise rooms because electricians may lack three-phase expertise, and local codes sometimes restrict high-voltage feeders. Vendor roadmaps now include single- and three-phase variants within common firmware and management frameworks, helping operators manage mixed estates. Yet as AI adoption pushes even branch offices beyond 10 kW per rack, demand will continue to tilt toward three-phase, inevitably shrinking single-phase share in total shipment terms.
By Tier Type: Tier 3 Facilities Balance Uptime and Capital Efficiency
By 2031, tier 3 facilities are projected to achieve a robust 9.76% CAGR, outpacing tiers 1 and 2, which together accounted for 40.42% of revenue in 2025. Tier 3 has carved out a niche as the optimal blend of cost and resilience, boasting N+1 redundancy that limits annual downtime to just 1.6 hours, an acceptable threshold for most enterprise workloads and SaaS platforms. While adding dual PDUs with automatic transfer switches increases per-rack capital by about USD 1,000, insurers offset this by reducing premiums. Moreover, colocation customers now view tier 3 compliance as a baseline expectation. This balanced value proposition fuels tier 3's impressive 9.76% CAGR. In contrast, tiers 1 and 2, while losing traction for mission-critical applications, continue to serve archival storage, test environments, and content caching. Meanwhile, tier 4 remains a specialized choice, catering primarily to financial settlements, trading, and public safety workloads within the data center rack power distribution unit (PDU) market.
Modular PDU designs that allow hot-swap expansions under load are gaining traction because they help tier 3 operators scale incrementally without full shutdowns. By decoupling capacity-add projects from annual maintenance windows, operators raise cabinet density and revenue per square foot, strengthening the data center rack power distribution unit market size for tier-3-compliant hardware.

Note: Segment shares of all individual segments available upon report purchase
By Data Center Size: Hyperscale Expansion Pivots on AI Demand While Large Sites Anchor Installed Base
Large data centers accounted for 42.24% of the data center rack power distribution unit market share in 2025, underscoring the weight of 10-50 MW campuses that host cloud on-ramps, enterprise colocation suites, and regional internet exchanges. Hyperscale campuses, though a smaller absolute slice today, are projected to grow at a 9.12% CAGR to 2031, propelling the data center rack power distribution unit market size upward as operators build 100 MW-plus mega-facilities to serve generative-AI training clusters. These hyperscale builds specify three-phase PDUs rated at 60 A and above, integrate liquid-cooling manifolds, and standardize on 48 V DC busbars that trim power-conversion loss by 8-12%. Procurement contracts now demand 10-year warranties and on-site spares inventories, creating long-tail service revenue for vendors. In contrast, large data centers seek incremental upgrades, swapping legacy single-phase strips for smart three-phase units that enable sub-rack billing and PUE monitoring without wholesale electrical overhaul. This refresh activity sustains unit volume even as new construction tilts toward hyperscale footprints.
Hyperscale operators concentrate orders into multi-year master-service agreements that lock pricing and capacity for up to five sites at once, smoothing demand visibility for manufacturers yet elevating qualification thresholds around cybersecurity and firmware-update cadence. Their preference for open-compute reference designs nudges suppliers to publish API documentation and open-source management plug-ins, accelerating ecosystem convergence. Large facilities, meanwhile, prioritize retrofit flexibility; modular PDUs that can be field-upgraded from 20 kW to 30 kW circuits allow operators to introduce AI racks in specific cages without re-engineering entire power trunks. Collectively, the dual-track evolution means shipment mix shifts toward hyperscale-grade units by value, while large-site renovations preserve steady volume flow, ensuring that both cohorts remain pivotal contributors to the overall data center rack power distribution unit market size through 2031.
By Data Center Type: Colocation Leads, Enterprise Edge Surges
Colocation retains the largest slice of spending at 44.65% because enterprises favor opex-friendly outsourcing and regulators permit third-party hosting of sensitive data under audited controls. Intelligent PDUs underpin dynamic pricing models that tie monthly fees to precise kilowatt-hour consumption, aligning landlord revenue with client usage. Tenant churn drops once transparent metering is in place, reinforcing the momentum for PDU upgrades. Enterprise and edge facilities, often single-room deployments in hospitals, banks, and factories, are growing faster, with a 10.32% CAGR through 2031, as data-sovereignty rules proliferate. They demand secure, remotely administered units that can tolerate non-IT environments, further diversifying requirements inside the data center rack power distribution unit market.
Hyperscale clouds pursue capacity gains through both colocation halls and purpose-built campuses. They standardize power interfaces and buy in volume, but their long permitting cycles introduce lumpiness, prompting suppliers to hedge by diversifying across enterprise and edge. The multichannel interplay stabilizes overall shipment outlook despite individual sector swings in the data center rack power distribution unit (PDU) market.

Note: Segment shares of all individual segments available upon report purchase
By Rack Density: Above-20 kW Segment Surges on AI Workload Intensity
The above-20 kW segment is projected to grow at a CAGR of 10.04% through 2031, outpacing the 10-20 kW segment, which accounted for 48.43% of the market share in 2025. Service providers are implementing a dual-track strategy by allocating new cabinet procurements to the above-20 kW class, while using the 10-20 kW segment for the gradual upgrade of legacy halls. Furthermore, operators are reconfiguring existing rows by positioning AI-optimized racks near chilled-water manifolds and high-capacity busways. This approach enables them to avoid extensive electrical overhauls in the data center rack power distribution unit (PDU) market.
This zoning approach increases site utilization without jeopardizing thermal envelopes, and it prompts incremental orders for hybrid CDU-PDU units that integrate leak detection and branch-circuit monitoring. Consequently, vendor roadmaps emphasize modular power modules that can be field-upgraded from 20 kW to 30 kW ratings with minimal downtime, reinforcing the long-term shift in the shipment mix toward the high-density end of the spectrum.
Geography Analysis
Asia-Pacific accounted for 40.13% of the market share in 2025, helped by national cloud programs and renewable-energy strategies that funnel hyperscale builds to inland provinces where land and clean power are abundant. China’s Eastern Data Western Computing policy alone drives PDU shipments into double-digit gigawatt projects, while India’s 1,000 MW pipeline supports domestic SaaS and multinational captives. Japan adds incremental volume through automotive test tracks and smart-manufacturing edge nodes, particularly around Aichi and Kanagawa prefectures, where automakers feed sensor data into real-time analytics clusters. These dynamics underpin the region’s 10.14% CAGR and reinforce its lead in the data center rack power distribution unit market size.
North America follows, supported by USD 100 billion-plus hyperscale capex commitments in 2024-2025. Virginia’s Loudoun County continues to absorb record-setting builds, and Oregon’s renewable-heavy grid attracts GPU farms that target green cloud credits. Because local utility lead times stretch beyond two years, hyperscalers pre-purchase transformers and contract PDUs in bulk, securing unit allocations through 2027. While growth moderates relative to Asia-Pacific, sheer scale keeps volume robust in the data center rack power distribution unit (PDU) market.
Europe lags on account of energy-cost inflation and strict efficiency mandates under the EU Energy Efficiency Directive, which press operators to demonstrate sub-1.3 PUE performance and quarterly consumption reporting. Investment shifts toward retrofit efficiency rather than capacity addition, favoring intelligent PDUs with granular telemetry but tempering overall shipment growth. Middle East and Africa, meanwhile, emerge as intercontinental connectivity hubs. Sovereign-cloud policies in the United Arab Emirates and Saudi Arabia spur local hyperscale builds, and greenfield smart-city initiatives such as NEOM incorporate fully renewable 5 GW data centers, adding a fresh vector of demand for high-capacity three-phase units. South America rounds out the picture as Brazil enforces in-country data localization, motivating cloud entrants to establish regional facilities that push PDU demand upward despite macro volatility.

Competitive Landscape
The data center rack power distribution unit (PDU) market remains moderately concentrated, with Schneider Electric, Vertiv, Eaton, Legrand, and ABB controlling just over half of global revenue. These incumbents defend their positions through vertical integration, firmware-centric differentiation, and region-specific manufacturing expansions. Schneider’s 2024 acquisition of Motivair illustrates convergence between power distribution and liquid cooling, enabling bundled rack infrastructure for AI clusters. Vertiv extends reach into the Middle East via its Powerbar Gulf purchase, pairing local assembly with service contracts that satisfy sovereign-cloud procurement rules.
Niche challengers such as nVent’s Enlogic, Starline, and Server Technology (now under Legrand) attack whitespace in modular busway and software-defined PDU segments. Their open-API architectures integrate with Kubernetes and OpenStack, allowing DevOps teams to treat power as code. Recurring subscription revenue on AI-enabled analytics climbs 15-20% annually, lifting gross margins and funding rapid product iterations. Meanwhile, fragmentation intensifies below the 10 kW range where regional suppliers compete on cost. Vendors differentiate with integrated lithium-ion UPS modules, 4G/5G backhaul, and physical footprints optimized for edge cabinets, broadening the total addressable data center rack power distribution unit market and eroding incumbent share at the low end.
Regional manufacturing footprints are becoming a decisive differentiator as buyers weigh total landed cost and supply-chain resilience alongside technical specifications. Schneider Electric and Eaton have both shifted a portion of PDU assembly to Mexico and Poland to shorten delivery times into North America and Europe, respectively, while Vertiv and ABB increased localized content thresholds in Saudi Arabia and the United Arab Emirates to comply with in-country value regulations tied to sovereign-cloud contracts. At the same time, Asian challengers such as Delta Electronics and Huawei leverage vertically integrated component ecosystems to price aggressively in Southeast Asia and Latin America, pressuring Western incumbents to bundle service-level agreements, spare-parts depots, and five-year firmware road maps in order to preserve margin. This geographic diversification of manufacturing and service capabilities adds a fresh layer of competitive intensity, favoring suppliers with global scale yet regional agility.
Data Center Rack Power Distribution Unit (PDU) Industry Leaders
Schneider Electric SE
Vertiv Group Corp.
Eaton Corporation plc
ABB Ltd
Legrand SA
- *Disclaimer: Major Players sorted in no particular order

Recent Industry Developments
- February 2026: Vertiv begins volume shipments of the CoolChip Max hybrid CDU-PDU, rated for 100 kW power distribution and 250 kW liquid-cooling rejection in a single 6U enclosure, targeting hyperscale AI clusters.
- November 2025: Legrand integrates Server Technology’s intelligent-PDU firmware into its CloudRail platform, enabling fleet-wide over-the-air updates and unified analytics for 20,000 units deployed across Digital Realty sites.
- August 2025: nVent Electric’s Enlogic division ships the first production run of C39-outlet PDUs optimized for NVIDIA DGX SuperPOD racks, with initial installations at two hyperscale campuses in Singapore.
- March 2025: Rittal introduces the CMC III Nano module, a retrofit daughterboard that adds AI-based power-quality diagnostics to existing G2 PDUs, extending product life by five years for 12,000 enterprise cabinets.
Global Data Center Rack Power Distribution Unit (PDU) Market Report Scope
A power distribution unit (PDU) is an instrument for controlling electrical power in a data center. The most essential PDUs are large power strips without surge protection. They are developed to provide standard electrical outlets for data center equipment without monitoring or remote access capabilities.
The Data Center Rack Power Distribution Unit Report is Segmented by Construction (Smart PDU, and Basic PDU), Phase (Single-Phase, and Three-Phase), Tier Type (Tier 1 and 2, Tier 3, and Tier 4), Data Center Size (Small, Medium, Large, and Hyperscale), Data Center Type (Colocation, and More), Rack Density (Up to 10 kW, 10-20 kW, and Above 20 kW), and Geography. The Market Forecasts are Provided in Terms of Value (USD).
| Smart PDU |
| Basic PDU |
| Single-Phase |
| Three-Phase |
| Tier 1 and 2 |
| Tier 3 |
| Tier 4 |
| Small Data Center |
| Medium Data Center |
| Large Data Center |
| Hyperscale Data Center |
| Colocation Data Center |
| Hyperscalers Data Center/CSPs |
| Enterprise and Edge Data Center |
| Up to 10 kW |
| 10-20 kW |
| Above 20 kW |
| North America | United States |
| Canada | |
| Mexico | |
| South America | Brazil |
| Argentina | |
| Rest of South America | |
| Europe | Germany |
| United Kingdom | |
| France | |
| Italy | |
| Spain | |
| Rest of Europe | |
| Asia-Pacific | China |
| India | |
| Japan | |
| South Korea | |
| Australia and New Zealand | |
| Rest of Asia-Pacific | |
| Middle East | Saudi Arabia |
| United Arab Emirates | |
| Turkey | |
| Rest of Middle East | |
| Africa | South Africa |
| Nigeria | |
| Egypt | |
| Rest of Africa |
| By Construction | Smart PDU | |
| Basic PDU | ||
| By Phase | Single-Phase | |
| Three-Phase | ||
| By Tier Type | Tier 1 and 2 | |
| Tier 3 | ||
| Tier 4 | ||
| By Data Center Size | Small Data Center | |
| Medium Data Center | ||
| Large Data Center | ||
| Hyperscale Data Center | ||
| By Data Center Type | Colocation Data Center | |
| Hyperscalers Data Center/CSPs | ||
| Enterprise and Edge Data Center | ||
| By Rack Density (kW per Rack) | Up to 10 kW | |
| 10-20 kW | ||
| Above 20 kW | ||
| By Geography | North America | United States |
| Canada | ||
| Mexico | ||
| South America | Brazil | |
| Argentina | ||
| Rest of South America | ||
| Europe | Germany | |
| United Kingdom | ||
| France | ||
| Italy | ||
| Spain | ||
| Rest of Europe | ||
| Asia-Pacific | China | |
| India | ||
| Japan | ||
| South Korea | ||
| Australia and New Zealand | ||
| Rest of Asia-Pacific | ||
| Middle East | Saudi Arabia | |
| United Arab Emirates | ||
| Turkey | ||
| Rest of Middle East | ||
| Africa | South Africa | |
| Nigeria | ||
| Egypt | ||
| Rest of Africa | ||
Key Questions Answered in the Report
What is the forecast CAGR for data center rack power distribution units to 2031?
The market is projected to register an 8.96% CAGR between 2026 and 2031, fueled by hyperscale expansion, AI workloads, and liquid-cooling retrofits.
Which construction type leads current shipments?
Smart PDUs claimed 61.42% revenue share in 2025 and are poised to outgrow basic models thanks to remote-management and billing features.
Why are three-phase PDUs gaining ground over single-phase units?
High-density AI servers draw more than 15 kW per rack; three-phase 415-V or 480-V feeds reduce resistive loss and comply with utility incentive programs.
Which region shows the fastest growth outlook?
Asia-Pacific leads with a forecast 10.14% CAGR to 2031, driven by China’s inland hyperscale builds and India’s 1,000 MW capacity pipeline.




