Hardware Spec Index

Caldera PW-9948 Prime 550W 80 PLUS Bronze ATX 3.1 Power Supply

Power Supplies · Caldera · SKU PW9948-PRIME · Released 2026 · Updated 2026-10-22

Key facts

Benchmark index815 (Power Supplies scale)
Category rank#24,246
Street price$39
Power550 W (rated)
Performance per dollar20.90
Released2026

Specifications

BrandCaldera
ModelCaldera PW-9948 Prime
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
ModularityNon-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
Novexa PW-2547 Edge 1200W 80 PLUS Titanium ATX Power Supply2,567$369Compare
Novexa PW-7370 Prime 550W 80 PLUS Bronze ATX 3.1 Power Supply800$39Compare
Zephyra PW-4969 XT 750W 80 PLUS Gold ATX Power Supply1,234$79Compare
Caldera PW-2355 Prime 850W 80 PLUS Gold ATX 3.0 Power Supply1,562$99Compare
Teralux PW-9542 SE 650W 80 PLUS Bronze ATX 3.1 Power Supply1,400$79Compare
Novexa PW-5374 SE 850W 80 PLUS Gold ATX Power Supply1,513$109Compare

All Power Supplies · JSON

Cite this page: Hardware Spec Index, “Caldera PW-9948 Prime 550W 80 PLUS Bronze ATX 3.1 Power Supply”, https://vextor7.com/item/97837381 (accessed 2026-10-22).