Hardware Spec Index

Vantrel PW-2891 Prime 850W 80 PLUS Gold ATX 3.0 Power Supply

Power Supplies · Vantrel · SKU PW2891-PRIME · Released 2022 · Updated 2026-10-24

Key facts

Benchmark index1,707 (Power Supplies scale)
Category rank#39,757
Street price$109
Power850 W (rated)
Performance per dollar15.66
Released2022

Specifications

BrandVantrel
ModelVantrel PW-2891 Prime
Rated output850 W continuous
Efficiency80 PLUS Gold (90% at 50% load, 115 V)
StandardATX 3.0 / PCIe CEM 5.0
GPU power1× 12VHPWR (600 W)
PCIe 8-pin2×
Form factorATX
ModularityFully modular
Fan135 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
Novexa PW-9565 Ultra 550W 80 PLUS Gold SFX Power Supply690$39Compare
Novexa PW-6953 Ti 750W 80 PLUS Gold ATX 3.1 Power Supply1,348$89Compare
Vantrel PW-7938 Ultra 1200W 80 PLUS Gold ATX 3.0 Power Supply2,145$239Compare
Novexa PW-9543 Ultra 650W 80 PLUS Bronze ATX 3.1 Power Supply841$39Compare
Vantrel PW-4820 SE 750W 80 PLUS Bronze ATX 3.0 Power Supply1,050$49Compare
Vantrel PW-7130 Plus 550W 80 PLUS Bronze ATX 3.1 Power Supply985$49Compare

All Power Supplies · JSON

Cite this page: Hardware Spec Index, “Vantrel PW-2891 Prime 850W 80 PLUS Gold ATX 3.0 Power Supply”, https://vextor7.com/item/90144111 (accessed 2026-10-24).