Hardware Spec Index

Caldera PW-2539 Ultra 750W 80 PLUS Gold ATX 3.1 Power Supply

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

Key facts

Benchmark index1,667 (Power Supplies scale)
Category rank#17,507
Street price$109
Power750 W (rated)
Performance per dollar15.29
Released2025

Specifications

BrandCaldera
ModelCaldera PW-2539 Ultra
Rated output750 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-pin2×
Form factorATX
ModularityFully modular
Fan135 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-2530 Pro 1600W 80 PLUS Titanium ATX Power Supply2,758$399Compare
Novexa PW-8208 Ultra 1200W 80 PLUS Gold ATX 3.0 Power Supply2,009$189Compare
Teralux PW-9394 Plus 750W 80 PLUS Gold ATX 3.1 Power Supply1,298$69Compare
Zephyra PW-4567 Core 1200W 80 PLUS Titanium ATX 3.0 Power Supply2,354$259Compare
Caldera PW-4511 Prime 850W 80 PLUS Gold SFX Power Supply1,591$109Compare
Caldera PW-8345 Ultra 1000W 80 PLUS Titanium ATX 3.1 Power Supply2,474$239Compare

All Power Supplies · JSON

Cite this page: Hardware Spec Index, “Caldera PW-2539 Ultra 750W 80 PLUS Gold ATX 3.1 Power Supply”, https://vextor7.com/item/5765846 (accessed 2026-10-25).