Hardware Spec Index

Caldera PW-2637 XT 550W 80 PLUS Bronze ATX 3.1 Power Supply

Power Supplies · Caldera · SKU PW2637-XT · Released 2024 · Updated 2026-10-22

Key facts

Benchmark index1,054 (Power Supplies scale)
Category rank#26,469
Street price$59
Power550 W (rated)
Performance per dollar17.86
Released2024

Specifications

BrandCaldera
ModelCaldera PW-2637 XT
Rated output550 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-pin1×
Form factorATX
ModularitySemi-modular
Fan140 mm fluid dynamic bearing, zero-RPM mode
Hold-up time≥ 17 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-8645 Ultra 650W 80 PLUS Bronze SFX Power Supply751$39Compare
Vantrel PW-5724 Prime 550W 80 PLUS Bronze ATX 3.0 Power Supply734$39Compare
Zephyra PW-8592 Ti 1300W 80 PLUS Gold ATX 3.1 Power Supply2,237$219Compare
Zephyra PW-1505 Pro 1600W 80 PLUS Titanium ATX 3.0 Power Supply2,876$399Compare
Novexa PW-2720 XT 1300W 80 PLUS Platinum ATX 3.1 Power Supply2,672$329Compare
Zephyra PW-4567 Core 650W 80 PLUS Bronze ATX 3.0 Power Supply734$39Compare

All Power Supplies · JSON

Cite this page: Hardware Spec Index, “Caldera PW-2637 XT 550W 80 PLUS Bronze ATX 3.1 Power Supply”, https://vextor7.com/item/94558601 (accessed 2026-10-22).