Hardware Spec Index

Zephyra PW-3700 Ultra 650W 80 PLUS Gold ATX 3.1 Power Supply

Power Supplies · Zephyra · SKU PW3700-ULTRA · Released 2025 · Updated 2026-10-20

Key facts

Benchmark index1,110 (Power Supplies scale)
Category rank#29,284
Street price$59
Power650 W (rated)
Performance per dollar18.81
Released2025

Specifications

BrandZephyra
ModelZephyra PW-3700 Ultra
Rated output650 W continuous
Efficiency80 PLUS Gold (90% at 50% load, 115 V)
StandardATX 3.1 / PCIe CEM 5.1
GPU power1× 12V-2x6 (600 W)
PCIe 8-pin1×
Form factorATX
ModularityFully modular
Fan120 mm fluid dynamic bearing, zero-RPM mode
Hold-up time≥ 17 ms
ProtectionsOCP, OVP, UVP, OPP, OTP, SCP
Warranty7 years

Related guides

80 PLUS Efficiency Ratings ExplainedATX 3.1 Power Supplies and the 12V-2x6 Connector

Similar Power Supplies

ModelBenchmarkPriceCompare
Zephyra PW-4775 Pro 1300W 80 PLUS Titanium ATX Power Supply2,476$269Compare
Zephyra PW-3911 XT 850W 80 PLUS Gold ATX Power Supply1,688$129Compare
Caldera PW-9289 Max 1300W 80 PLUS Gold ATX 3.1 Power Supply2,425$269Compare
Teralux PW-6097 Ultra 850W 80 PLUS Gold ATX Power Supply1,609$99Compare
Vantrel PW-5724 Core 1300W 80 PLUS Platinum ATX 3.0 Power Supply2,468$259Compare
Caldera PW-1264 Edge 650W 80 PLUS Bronze ATX 3.1 Power Supply810$39Compare

All Power Supplies · JSON

Cite this page: Hardware Spec Index, “Zephyra PW-3700 Ultra 650W 80 PLUS Gold ATX 3.1 Power Supply”, https://vextor7.com/item/92948425 (accessed 2026-10-20).