Hardware Spec Index

Novexa PW-1957 Ultra 850W 80 PLUS Gold ATX Power Supply

Power Supplies · Novexa · SKU PW1957-ULTRA · Released 2021 · Updated 2026-10-26

Key facts

Benchmark index1,704 (Power Supplies scale)
Category rank#45,821
Street price$119
Power850 W (rated)
Performance per dollar14.32
Released2021

Specifications

BrandNovexa
ModelNovexa PW-1957 Ultra
Rated output850 W continuous
Efficiency80 PLUS Gold (90% at 50% load, 115 V)
StandardATX 12V 2.53
GPU powerNone
PCIe 8-pin3×
Form factorATX
ModularityFully modular
Fan135 mm fluid dynamic bearing, zero-RPM mode
Hold-up time≥ 16 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
Zephyra PW-9630 Pro 1000W 80 PLUS Gold ATX 3.1 Power Supply2,140$209Compare
Zephyra PW-1525 Edge 1000W 80 PLUS Gold ATX 3.1 Power Supply2,150$189Compare
Novexa PW-6547 Edge 650W 80 PLUS Gold ATX 3.0 Power Supply923$49Compare
Caldera PW-4748 Ti 1600W 80 PLUS Platinum ATX 3.1 Power Supply2,858$369Compare
Vantrel PW-2365 Core 650W 80 PLUS Gold ATX 3.1 Power Supply1,153$59Compare
Zephyra PW-4468 Ultra 850W 80 PLUS Gold SFX Power Supply1,579$129Compare

All Power Supplies · JSON

Cite this page: Hardware Spec Index, “Novexa PW-1957 Ultra 850W 80 PLUS Gold ATX Power Supply”, https://vextor7.com/item/2664352 (accessed 2026-10-26).