Hardware Spec Index

Caldera PW-2557 XT 650W 80 PLUS Gold ATX Power Supply

Power Supplies · Caldera · SKU PW2557-XT · Released 2020 · Updated 2026-10-20

Key facts

Benchmark index1,170 (Power Supplies scale)
Category rank#30,753
Street price$59
Power650 W (rated)
Performance per dollar19.83
Released2020

Specifications

BrandCaldera
ModelCaldera PW-2557 XT
Rated output650 W continuous
Efficiency80 PLUS Gold (90% at 50% load, 115 V)
StandardATX 12V 2.53
GPU powerNone
PCIe 8-pin2×
Form factorATX
ModularityFully modular
Fan140 mm fluid dynamic bearing, zero-RPM mode
Hold-up time≥ 16 ms
ProtectionsOCP, OVP, UVP, OPP, OTP, SCP
Warranty5 years

Related guides

80 PLUS Efficiency Ratings ExplainedATX 3.1 Power Supplies and the 12V-2x6 Connector

Similar Power Supplies

ModelBenchmarkPriceCompare
Novexa PW-2809 Prime 750W 80 PLUS Gold ATX 3.0 Power Supply1,407$79Compare
Novexa PW-7281 Core 1000W 80 PLUS Platinum ATX 3.1 Power Supply2,336$239Compare
Teralux PW-1972 Ultra 1200W 80 PLUS Platinum ATX Power Supply2,172$189Compare
Novexa PW-2547 Ultra 750W 80 PLUS Gold SFX Power Supply1,526$119Compare
Teralux PW-2015 Edge 1000W 80 PLUS Gold ATX 3.1 Power Supply2,215$229Compare
Novexa PW-8990 Core 850W 80 PLUS Gold SFX Power Supply1,544$99Compare

All Power Supplies · JSON

Cite this page: Hardware Spec Index, “Caldera PW-2557 XT 650W 80 PLUS Gold ATX Power Supply”, https://vextor7.com/item/30008797 (accessed 2026-10-20).