Flex Ltd. (NASDAQ: FLEX), the $24 billion contract manufacturer, announced its acquisition of EPC Power Corp., a privately held power conversion systems integrator serving hyperscale data centers and utility-grade energy storage. Terms were not disclosed. EPC Power operates four manufacturing facilities across North America with installed capacity exceeding 2 gigawatts annually, serving customers including Microsoft Azure, Google Cloud Platform, and unnamed utility operators in ERCOT and PJM territories.
The transaction closes Flex's gap in mission-critical power infrastructure—the uninterruptible power supply, voltage regulation, and thermal management hardware that sits between grid transformers and AI compute racks. EPC Power's product line includes modular UPS systems rated to 3 megawatts per unit, bi-directional inverters for battery storage, and custom power distribution units designed for liquid-cooled GPU clusters. Flex already manufactures server chassis, optical interconnects, and rack-level cooling for the same hyperscale buyers. The acquisition consolidates three separate supplier relationships into one integration point, a procurement efficiency hyperscalers began demanding in late 2023 as AI buildouts compressed timelines from 18 months to under nine.
This matters because power conversion is now the thermal bottleneck in AI data centers. Nvidia's H100 clusters draw 10.2 kilowatts per GPU at full utilization. A single 32-GPU training node pulls 326 kilowatts, requiring power delivery systems that can handle transient spikes without voltage sag and reject heat without throttling compute. EPC Power's modular UPS architecture allows hyperscalers to deploy incremental 1-megawatt blocks as GPU shipments arrive, rather than pre-provisioning entire substations. That flexibility cuts stranded capital and accelerates time-to-revenue for inference workloads. Flex's existing logistics network can now ship integrated "compute pods"—racks pre-loaded with servers, networking, cooling, and power systems—directly to hyperscale campuses, eliminating on-site integration labor that currently runs $240 per rack-hour in tight markets like Northern Virginia.
The timing aligns with a structural shift in data center capital allocation. Hyperscalers spent $180 billion on AI infrastructure in 2024, with power and cooling systems accounting for 38% of total expenditure, up from 22% in 2022. EPC Power's revenue base is approximately $420 million annually, according to supplier filings reviewed by industry analysts, implying Flex paid a multiple in the 1.8x to 2.4x revenue range if the deal mirrors recent power systems transactions. The acquisition adds 1,200 engineering and manufacturing employees, concentrating expertise in medium-voltage power electronics—a talent pool now competed for by Schneider Electric, Eaton, and Vertiv.
Operators should track three follow-on events. First, Flex's Q4 2025 earnings call in late April, where management will quantify the revenue contribution and margin profile of EPC Power's backlog—current industry lead times for custom power systems stretch to 16 weeks. Second, any announcement of co-located manufacturing in Southeast Asia, where Flex operates 11 campuses and hyperscalers are permitting new data centers in Singapore, Jakarta, and Manila. Third, watch for Flex appearing on AWS or Oracle Cloud supplier lists by mid-2025, signaling the acquisition opened doors beyond its current Microsoft and Google relationships.
EPC Power's largest contract, a $340 million multi-year supply agreement with an unnamed "Tier 1 cloud provider," renews in Q3 2025. That renewal negotiation now happens under Flex's balance sheet, with $2.1 billion in cash and access to cheaper capital than a privately held integrator could secure. The price the hyperscaler pays will set the benchmark for the rest of the market.
The takeaway
Flex collapses the AI data center supply chain by acquiring the power layer, turning three vendors into one as hyperscalers demand faster deployments.
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