Hardware Spec Index

Caldera PW-5221 Edge 550W 80 PLUS Gold ATX Power Supply

Power Supplies · Caldera · SKU PW5221-EDGE · Released 2019 · Updated 2026-10-20

Key facts

Benchmark index1,015 (Power Supplies scale)
Category rank#29,501
Street price$59
Power550 W (rated)
Performance per dollar17.20
Released2019

Specifications

BrandCaldera
ModelCaldera PW-5221 Edge
Rated output550 W continuous
Efficiency80 PLUS Gold (90% at 50% load, 115 V)
StandardATX 12V 2.53
GPU powerNone
PCIe 8-pin2×
Form factorATX
ModularityFully modular
Fan135 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
Zephyra PW-3337 SE 850W 80 PLUS Gold SFX Power Supply1,692$129Compare
Teralux PW-1637 Core 1000W 80 PLUS Platinum ATX Power Supply1,969$159Compare
Zephyra PW-1167 Ti 1600W 80 PLUS Platinum ATX Power Supply2,724$309Compare
Zephyra PW-2758 Prime 550W 80 PLUS Gold ATX Power Supply864$39Compare
Vantrel PW-3642 Edge 1200W 80 PLUS Platinum ATX 3.0 Power Supply2,291$249Compare
Teralux PW-5787 Ultra 850W 80 PLUS Gold ATX 3.0 Power Supply1,757$139Compare

All Power Supplies · JSON

Cite this page: Hardware Spec Index, “Caldera PW-5221 Edge 550W 80 PLUS Gold ATX Power Supply”, https://vextor7.com/item/4818239 (accessed 2026-10-20).