Hardware Spec Index

Zephyra PW-2918 Prime 850W 80 PLUS Platinum ATX 3.1 Power Supply

Power Supplies · Zephyra · SKU PW2918-PRIME · Released 2025 · Updated 2026-10-24

Key facts

Benchmark index2,171 (Power Supplies scale)
Category rank#14,984
Street price$189
Power850 W (rated)
Performance per dollar11.49
Released2025

Specifications

BrandZephyra
ModelZephyra PW-2918 Prime
Rated output850 W continuous
Efficiency80 PLUS Platinum (92% at 50% load, 115 V)
StandardATX 3.1 / PCIe CEM 5.1
GPU power1× 12V-2x6 (600 W)
PCIe 8-pin2×
Form factorATX
ModularityFully modular
Fan120 mm fluid dynamic bearing, zero-RPM mode
Hold-up time≥ 17 ms
ProtectionsOCP, OVP, UVP, OPP, OTP, SCP
Warranty10 years

Related guides

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

Similar Power Supplies

ModelBenchmarkPriceCompare
Vantrel PW-7402 Ultra 650W 80 PLUS Bronze ATX Power Supply920$49Compare
Vantrel PW-4882 Prime 1300W 80 PLUS Titanium ATX 3.1 Power Supply2,690$399Compare
Zephyra PW-7677 SE 550W 80 PLUS Bronze ATX 3.1 Power Supply945$49Compare
Vantrel PW-8745 Ultra 1200W 80 PLUS Gold ATX Power Supply2,180$209Compare
Caldera PW-8443 Core 1600W 80 PLUS Titanium ATX 3.1 Power Supply2,929$379Compare
Caldera PW-6648 XT 850W 80 PLUS Gold SFX Power Supply1,940$179Compare

All Power Supplies · JSON

Cite this page: Hardware Spec Index, “Zephyra PW-2918 Prime 850W 80 PLUS Platinum ATX 3.1 Power Supply”, https://vextor7.com/item/32639037 (accessed 2026-10-24).