Hardware Spec Index

Caldera PW-8721 Edge 550W 80 PLUS Bronze ATX 3.0 Power Supply

Power Supplies · Caldera · SKU PW8721-EDGE · Released 2022 · Updated 2026-10-24

Key facts

Benchmark index755 (Power Supplies scale)
Category rank#21,665
Street price$39
Power550 W (rated)
Performance per dollar19.36
Released2022

Specifications

BrandCaldera
ModelCaldera PW-8721 Edge
Rated output550 W continuous
Efficiency80 PLUS Bronze (85% at 50% load, 115 V)
StandardATX 3.0 / PCIe CEM 5.0
GPU power1× 12VHPWR (600 W)
PCIe 8-pin1×
Form factorATX
ModularitySemi-modular
Fan135 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
Teralux PW-8701 Core 1600W 80 PLUS Titanium ATX 3.1 Power Supply2,876$319Compare
Caldera PW-5847 Max 1200W 80 PLUS Gold ATX 3.0 Power Supply2,524$249Compare
Vantrel PW-7805 Plus 1000W 80 PLUS Platinum ATX Power Supply1,834$149Compare
Teralux PW-3527 XT 1600W 80 PLUS Titanium ATX Power Supply2,803$359Compare
Caldera PW-9899 Ti 850W 80 PLUS Bronze ATX Power Supply1,426$89Compare
Vantrel PW-5851 Edge 650W 80 PLUS Gold ATX Power Supply1,316$79Compare

All Power Supplies · JSON

Cite this page: Hardware Spec Index, “Caldera PW-8721 Edge 550W 80 PLUS Bronze ATX 3.0 Power Supply”, https://vextor7.com/item/9253690 (accessed 2026-10-24).