Hardware Spec Index

Zephyra PW-4638 Core 850W 80 PLUS Bronze SFX Power Supply

Power Supplies · Zephyra · SKU PW4638-CORE · Released 2023 · Updated 2026-10-20

Key facts

Benchmark index1,220 (Power Supplies scale)
Category rank#32,427
Street price$59
Power850 W (rated)
Performance per dollar20.68
Released2023

Specifications

BrandZephyra
ModelZephyra PW-4638 Core
Rated output850 W continuous
Efficiency80 PLUS Bronze (85% at 50% load, 115 V)
StandardATX 3.0 / PCIe CEM 5.0
GPU power1× 12VHPWR (600 W)
PCIe 8-pin2×
Form factorSFX-L
ModularityNon-modular
Fan120 mm fluid dynamic bearing, zero-RPM mode
Hold-up time≥ 17 ms
ProtectionsOCP, OVP, UVP, OPP, OTP, SCP
Warranty5 years

Related guides

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

Similar Power Supplies

ModelBenchmarkPriceCompare
Vantrel PW-7747 Plus 1600W 80 PLUS Platinum ATX Power Supply2,975$369Compare
Zephyra PW-2845 Pro 750W 80 PLUS Bronze ATX 3.1 Power Supply1,019$59Compare
Caldera PW-4800 Core 650W 80 PLUS Gold ATX 3.1 Power Supply1,268$79Compare
Teralux PW-3376 Ultra 1000W 80 PLUS Gold SFX Power Supply1,954$159Compare
Novexa PW-6937 Edge 750W 80 PLUS Gold ATX 3.1 Power Supply1,671$119Compare
Zephyra PW-8473 Ultra 750W 80 PLUS Gold ATX 3.1 Power Supply1,000$49Compare

All Power Supplies · JSON

Cite this page: Hardware Spec Index, “Zephyra PW-4638 Core 850W 80 PLUS Bronze SFX Power Supply”, https://vextor7.com/item/32946513 (accessed 2026-10-20).