Hardware Spec Index

Caldera PW-2420 Ultra 650W 80 PLUS Gold ATX Power Supply

Power Supplies · Caldera · SKU PW2420-ULTRA · Released 2021 · Updated 2026-10-21

Key facts

Benchmark index1,342 (Power Supplies scale)
Category rank#11,047
Street price$69
Power650 W (rated)
Performance per dollar19.45
Released2021

Specifications

BrandCaldera
ModelCaldera PW-2420 Ultra
Rated output650 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
Warranty10 years

Related guides

80 PLUS Efficiency Ratings ExplainedATX 3.1 Power Supplies and the 12V-2x6 Connector

Similar Power Supplies

ModelBenchmarkPriceCompare
Caldera PW-8885 Ti 1000W 80 PLUS Gold ATX Power Supply1,584$129Compare
Novexa PW-6906 Edge 550W 80 PLUS Bronze SFX Power Supply783$39Compare
Caldera PW-6310 Plus 850W 80 PLUS Gold SFX Power Supply1,522$89Compare
Caldera PW-4645 XT 850W 80 PLUS Gold ATX Power Supply1,526$99Compare
Vantrel PW-2106 Plus 650W 80 PLUS Bronze ATX 3.0 Power Supply780$39Compare
Caldera PW-2462 Max 1000W 80 PLUS Platinum ATX 3.1 Power Supply1,858$149Compare

All Power Supplies · JSON

Cite this page: Hardware Spec Index, “Caldera PW-2420 Ultra 650W 80 PLUS Gold ATX Power Supply”, https://vextor7.com/item/4630907 (accessed 2026-10-21).