Hardware Spec Index

Caldera PW-7890 Max 550W 80 PLUS Gold SFX Power Supply

Power Supplies · Caldera · SKU PW7890-MAX · Released 2022 · Updated 2026-10-21

Key facts

Benchmark index1,041 (Power Supplies scale)
Category rank#1,734
Street price$49
Power550 W (rated)
Performance per dollar21.24
Released2022

Specifications

BrandCaldera
ModelCaldera PW-7890 Max
Rated output550 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-pin1×
Form factorSFX-L
ModularityFully modular
Fan120 mm fluid dynamic bearing, zero-RPM mode
Hold-up time≥ 17 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
Novexa PW-7976 Plus 550W 80 PLUS Bronze ATX 3.1 Power Supply905$39Compare
Novexa PW-7852 SE 1000W 80 PLUS Platinum SFX Power Supply2,263$279Compare
Teralux PW-1373 Edge 650W 80 PLUS Gold ATX 3.1 Power Supply1,150$49Compare
Zephyra PW-6936 Pro 1000W 80 PLUS Gold ATX Power Supply1,968$189Compare
Teralux PW-4577 Prime 650W 80 PLUS Gold ATX 3.0 Power Supply1,149$59Compare
Vantrel PW-4987 SE 1300W 80 PLUS Platinum ATX 3.0 Power Supply2,472$229Compare

All Power Supplies · JSON

Cite this page: Hardware Spec Index, “Caldera PW-7890 Max 550W 80 PLUS Gold SFX Power Supply”, https://vextor7.com/item/559979 (accessed 2026-10-21).