Hardware Spec Index

Vantrel PW-3921 Ultra 850W 80 PLUS Bronze ATX 3.1 Power Supply

Power Supplies · Vantrel · SKU PW3921-ULTRA · Released 2026 · Updated 2026-10-19

Key facts

Benchmark index1,199 (Power Supplies scale)
Category rank#34,577
Street price$69
Power850 W (rated)
Performance per dollar17.38
Released2026

Specifications

BrandVantrel
ModelVantrel PW-3921 Ultra
Rated output850 W continuous
Efficiency80 PLUS Bronze (85% at 50% load, 115 V)
StandardATX 3.1 / PCIe CEM 5.1
GPU power1× 12V-2x6 (600 W)
PCIe 8-pin2×
Form factorATX
ModularityNon-modular
Fan140 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-4216 XT 650W 80 PLUS Gold ATX Power Supply811$39Compare
Zephyra PW-4772 Ultra 750W 80 PLUS Gold ATX Power Supply1,523$109Compare
Novexa PW-9405 Ultra 1300W 80 PLUS Platinum ATX Power Supply2,574$339Compare
Zephyra PW-4137 XT 850W 80 PLUS Gold ATX 3.1 Power Supply2,000$179Compare
Teralux PW-2887 Pro 1300W 80 PLUS Titanium ATX 3.0 Power Supply2,980$359Compare
Novexa PW-3773 Ti 850W 80 PLUS Bronze ATX Power Supply1,136$59Compare

All Power Supplies · JSON

Cite this page: Hardware Spec Index, “Vantrel PW-3921 Ultra 850W 80 PLUS Bronze ATX 3.1 Power Supply”, https://vextor7.com/item/345595 (accessed 2026-10-19).