Hardware Spec Index

Caldera PW-7333 Ultra 550W 80 PLUS Gold ATX Power Supply

Power Supplies · Caldera · SKU PW7333-ULTRA · Released 2020 · Updated 2026-10-19

Key facts

Benchmark index1,038 (Power Supplies scale)
Category rank#34,349
Street price$49
Power550 W (rated)
Performance per dollar21.18
Released2020

Specifications

BrandCaldera
ModelCaldera PW-7333 Ultra
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-1398 Plus 850W 80 PLUS Gold SFX Power Supply1,947$169Compare
Caldera PW-9645 Prime 1200W 80 PLUS Titanium ATX 3.0 Power Supply2,642$259Compare
Novexa PW-9062 XT 650W 80 PLUS Bronze ATX 3.0 Power Supply777$39Compare
Caldera PW-7037 Core 1000W 80 PLUS Titanium ATX 3.0 Power Supply2,465$239Compare
Caldera PW-8087 XT 1000W 80 PLUS Platinum ATX 3.1 Power Supply2,332$209Compare
Vantrel PW-8271 Max 850W 80 PLUS Gold SFX Power Supply1,937$149Compare

All Power Supplies · JSON

Cite this page: Hardware Spec Index, “Caldera PW-7333 Ultra 550W 80 PLUS Gold ATX Power Supply”, https://vextor7.com/item/11640639 (accessed 2026-10-19).