Gigabyte GP-UD1600PM PG5 power supply 1600 W, 80 PLUS Platinum, modular, ATX 3.1

The full 1600 W is available on the +12 V rail, which delivers up to 133.3 A. A single strong rail means the load is shared freely between graphics cards and the processor, with no artificial limit behind any one connector. The +3.3 V and +5 V rails have a combined 150 W. That headroom is what multi-GPU systems and AI model training need, where components run at full load for hours.

The power supply complies with ATX 3.1 and is ready for PCIe 5.0 graphics cards. Four 16-pin PCIe cables are included, so new-generation graphics cards connect without adapters. On top of that there are eight PCIe 6+2 connectors for older cards, an ATX 20+4 motherboard connector on a 610 mm cable, and CPU/EPS 4+4 connectors for processor power.

80 PLUS Platinum certification and a stated efficiency of up to 92% mean that most of the energy drawn from the wall reaches the components and less is lost as heat. The less heat the unit produces, the more quietly its fan can run. Active power factor correction (PFC) and an input range of 100–240 V at 50/60 Hz let the unit work on different mains supplies.

Every cable is detachable, so you connect only the ones the system actually needs. No unused cable bundles are left in the case, air flows more freely and assembly is easier. In total there are 16 SATA and 6 Molex connectors for drives, fans and other devices, and the SATA cables come in 150 mm and 650 mm lengths.

The unit is protected against over-current, over-power, over-voltage, under-voltage, short circuit and overheating. According to the manufacturer, it uses Japanese main capacitors and a 120 mm fan with dual ball bearings, which outlast sleeve bearings. Hold-up time is 16 ms and the stated mean time between failures (MTBF) is 100,000 hours.

Gamers building a PC around a top-tier graphics card who want headroom for the next upgrade; AI and machine learning practitioners running several graphics cards in a workstation; 3D artists and video editors whose systems stay under load for hours; and anyone who values high efficiency and tidy cable management.