Hardware Spec Index

Caldera PW-2539 Pro 650W 80 PLUS Gold SFX Power Supply

Power Supplies · Caldera · SKU PW2539-PRO · Released 2025 · Updated 2026-10-25

Key facts

Benchmark index1,369 (Power Supplies scale)
Category rank#14,020
Street price$79
Power650 W (rated)
Performance per dollar17.33
Released2025

Specifications

BrandCaldera
ModelCaldera PW-2539 Pro
Rated output650 W continuous
Efficiency80 PLUS Gold (90% at 50% load, 115 V)
StandardATX 3.1 / PCIe CEM 5.1
GPU power1× 12V-2x6 (600 W)
PCIe 8-pin1×
Form factorSFX-L
ModularityFully modular
Fan120 mm fluid dynamic bearing, zero-RPM mode
Hold-up time≥ 17 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
Vantrel PW-5127 Prime 650W 80 PLUS Gold ATX 3.1 Power Supply1,286$89Compare
Vantrel PW-7957 Edge 550W 80 PLUS Gold ATX 3.1 Power Supply941$39Compare
Novexa PW-9091 Max 850W 80 PLUS Gold ATX 3.0 Power Supply1,827$129Compare
Zephyra PW-7327 Prime 650W 80 PLUS Bronze SFX Power Supply941$49Compare
Novexa PW-3057 Prime 1600W 80 PLUS Platinum ATX 3.0 Power Supply2,980$349Compare
Teralux PW-5023 Core 850W 80 PLUS Gold ATX 3.0 Power Supply1,236$69Compare

All Power Supplies · JSON

Cite this page: Hardware Spec Index, “Caldera PW-2539 Pro 650W 80 PLUS Gold SFX Power Supply”, https://vextor7.com/item/85545322 (accessed 2026-10-25).