Hardware Spec Index

Caldera PW-8544 Prime 550W 80 PLUS Bronze SFX Power Supply

Power Supplies · Caldera · SKU PW8544-PRIME · Released 2023 · Updated 2026-10-24

Key facts

Benchmark index1,076 (Power Supplies scale)
Category rank#19,763
Street price$49
Power550 W (rated)
Performance per dollar21.96
Released2023

Specifications

BrandCaldera
ModelCaldera PW-8544 Prime
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 factorSFX-L
ModularityNon-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
Zephyra PW-1395 XT 750W 80 PLUS Bronze ATX 3.1 Power Supply1,378$89Compare
Novexa PW-8722 Plus 750W 80 PLUS Gold SFX Power Supply1,250$59Compare
Caldera PW-3446 Pro 850W 80 PLUS Gold ATX 3.1 Power Supply1,657$119Compare
Novexa PW-9442 SE 1200W 80 PLUS Gold ATX Power Supply2,174$209Compare
Vantrel PW-6348 Core 1200W 80 PLUS Titanium ATX 3.0 Power Supply2,640$319Compare
Zephyra PW-2778 Edge 1200W 80 PLUS Gold ATX Power Supply2,250$249Compare

All Power Supplies · JSON

Cite this page: Hardware Spec Index, “Caldera PW-8544 Prime 550W 80 PLUS Bronze SFX Power Supply”, https://vextor7.com/item/5628616 (accessed 2026-10-24).