Hardware Spec Index

Caldera PW-4611 Ultra 850W 80 PLUS Bronze ATX Power Supply

Power Supplies · Caldera · SKU PW4611-ULTRA · Released 2020 · Updated 2026-10-21

Key facts

Benchmark index1,388 (Power Supplies scale)
Category rank#45,427
Street price$79
Power850 W (rated)
Performance per dollar17.57
Released2020

Specifications

BrandCaldera
ModelCaldera PW-4611 Ultra
Rated output850 W continuous
Efficiency80 PLUS Bronze (85% at 50% load, 115 V)
StandardATX 12V 2.53
GPU powerNone
PCIe 8-pin3×
Form factorATX
ModularitySemi-modular
Fan120 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-4992 Max 650W 80 PLUS Bronze ATX 3.0 Power Supply1,124$59Compare
Caldera PW-5096 Prime 850W 80 PLUS Gold ATX 3.1 Power Supply1,367$89Compare
Vantrel PW-5091 Core 850W 80 PLUS Platinum SFX Power Supply1,912$159Compare
Novexa PW-4140 Ultra 1000W 80 PLUS Gold ATX 3.0 Power Supply2,100$199Compare
Teralux PW-7888 Edge 850W 80 PLUS Bronze SFX Power Supply1,445$79Compare
Vantrel PW-6434 Plus 850W 80 PLUS Gold ATX 3.0 Power Supply1,892$159Compare

All Power Supplies · JSON

Cite this page: Hardware Spec Index, “Caldera PW-4611 Ultra 850W 80 PLUS Bronze ATX Power Supply”, https://vextor7.com/item/18554149 (accessed 2026-10-21).