Hardware Spec Index

Zephyra PW-6858 Prime 650W 80 PLUS Bronze ATX Power Supply

Power Supplies · Zephyra · SKU PW6858-PRIME · Released 2020 · Updated 2026-10-20

Key facts

Benchmark index856 (Power Supplies scale)
Category rank#37,710
Street price$39
Power650 W (rated)
Performance per dollar21.95
Released2020

Specifications

BrandZephyra
ModelZephyra PW-6858 Prime
Rated output650 W continuous
Efficiency80 PLUS Bronze (85% at 50% load, 115 V)
StandardATX 12V 2.53
GPU powerNone
PCIe 8-pin2×
Form factorATX
ModularityNon-modular
Fan135 mm fluid dynamic bearing, zero-RPM mode
Hold-up time≥ 16 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
Caldera PW-9200 Core 1000W 80 PLUS Gold ATX 3.1 Power Supply2,007$189Compare
Teralux PW-5755 SE 550W 80 PLUS Bronze ATX Power Supply739$39Compare
Caldera PW-9205 Pro 850W 80 PLUS Gold ATX Power Supply1,574$119Compare
Novexa PW-8911 Prime 1000W 80 PLUS Gold ATX 3.1 Power Supply1,870$139Compare
Zephyra PW-2123 SE 850W 80 PLUS Gold ATX 3.1 Power Supply1,701$149Compare
Zephyra PW-6613 Pro 1000W 80 PLUS Gold ATX Power Supply2,127$209Compare

All Power Supplies · JSON

Cite this page: Hardware Spec Index, “Zephyra PW-6858 Prime 650W 80 PLUS Bronze ATX Power Supply”, https://vextor7.com/item/20170481 (accessed 2026-10-20).