Hardware Spec Index

Caldera PW-9121 Max 650W 80 PLUS Bronze ATX Power Supply

Power Supplies · Caldera · SKU PW9121-MAX · Released 2021 · Updated 2026-10-21

Key facts

Benchmark index908 (Power Supplies scale)
Category rank#12,040
Street price$49
Power650 W (rated)
Performance per dollar18.53
Released2021

Specifications

BrandCaldera
ModelCaldera PW-9121 Max
Rated output650 W continuous
Efficiency80 PLUS Bronze (85% at 50% load, 115 V)
StandardATX 12V 2.53
GPU powerNone
PCIe 8-pin2×
Form factorATX
ModularityNon-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-3403 Prime 650W 80 PLUS Bronze SFX Power Supply986$59Compare
Zephyra PW-6695 XT 1000W 80 PLUS Gold ATX Power Supply2,157$179Compare
Teralux PW-1397 Plus 850W 80 PLUS Gold ATX Power Supply1,296$79Compare
Zephyra PW-4125 Plus 550W 80 PLUS Gold ATX Power Supply1,034$49Compare
Teralux PW-8866 XT 1200W 80 PLUS Titanium ATX 3.1 Power Supply2,683$339Compare
Zephyra PW-4460 Max 1300W 80 PLUS Titanium ATX 3.0 Power Supply2,890$359Compare

All Power Supplies · JSON

Cite this page: Hardware Spec Index, “Caldera PW-9121 Max 650W 80 PLUS Bronze ATX Power Supply”, https://vextor7.com/item/817463 (accessed 2026-10-21).