Hardware Spec Index

Caldera PW-2845 Ultra 850W 80 PLUS Gold SFX Power Supply

Power Supplies · Caldera · SKU PW2845-ULTRA · Released 2019 · Updated 2026-10-19

Key facts

Benchmark index2,087 (Power Supplies scale)
Category rank#2,875
Street price$209
Power850 W (rated)
Performance per dollar9.99
Released2019

Specifications

BrandCaldera
ModelCaldera PW-2845 Ultra
Rated output850 W continuous
Efficiency80 PLUS Gold (90% at 50% load, 115 V)
StandardATX 12V 2.53
GPU powerNone
PCIe 8-pin3×
Form factorSFX-L
ModularityFully 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
Teralux PW-3346 Pro 650W 80 PLUS Gold SFX Power Supply1,139$59Compare
Zephyra PW-8054 Max 850W 80 PLUS Gold SFX Power Supply1,526$89Compare
Vantrel PW-4721 Plus 850W 80 PLUS Gold SFX Power Supply1,521$109Compare
Caldera PW-4185 Ti 550W 80 PLUS Gold ATX 3.1 Power Supply1,112$59Compare
Novexa PW-4434 Edge 1200W 80 PLUS Titanium ATX Power Supply2,576$269Compare
Novexa PW-4146 SE 650W 80 PLUS Bronze ATX 3.1 Power Supply1,177$59Compare

All Power Supplies · JSON

Cite this page: Hardware Spec Index, “Caldera PW-2845 Ultra 850W 80 PLUS Gold SFX Power Supply”, https://vextor7.com/item/3240539 (accessed 2026-10-19).