Hardware Spec Index

Caldera PW-4539 XT 850W 80 PLUS Bronze ATX 3.1 Power Supply

Power Supplies · Caldera · SKU PW4539-XT · Released 2026 · Updated 2026-10-25

Key facts

Benchmark index1,469 (Power Supplies scale)
Category rank#26,277
Street price$89
Power850 W (rated)
Performance per dollar16.51
Released2026

Specifications

BrandCaldera
ModelCaldera PW-4539 XT
Rated output850 W continuous
Efficiency80 PLUS Bronze (85% at 50% load, 115 V)
StandardATX 3.1 / PCIe CEM 5.1
GPU power1× 12V-2x6 (600 W)
PCIe 8-pin2×
Form factorATX
ModularityNon-modular
Fan135 mm fluid dynamic bearing, zero-RPM mode
Hold-up time≥ 17 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
Novexa PW-5612 Plus 650W 80 PLUS Bronze ATX Power Supply834$39Compare
Teralux PW-8493 Max 1300W 80 PLUS Titanium ATX Power Supply2,361$239Compare
Vantrel PW-2485 XT 1000W 80 PLUS Gold ATX 3.1 Power Supply1,678$119Compare
Vantrel PW-6852 Pro 550W 80 PLUS Gold ATX Power Supply1,201$59Compare
Teralux PW-1781 Core 1200W 80 PLUS Gold ATX 3.0 Power Supply2,597$299Compare
Vantrel PW-5035 XT 550W 80 PLUS Bronze SFX Power Supply975$49Compare

All Power Supplies · JSON

Cite this page: Hardware Spec Index, “Caldera PW-4539 XT 850W 80 PLUS Bronze ATX 3.1 Power Supply”, https://vextor7.com/item/3703969 (accessed 2026-10-25).