Hardware Spec Index

Caldera PW-4438 Plus 850W 80 PLUS Gold ATX Power Supply

Power Supplies · Caldera · SKU PW4438-PLUS · Released 2020 · Updated 2026-10-19

Key facts

Benchmark index2,163 (Power Supplies scale)
Category rank#15,924
Street price$189
Power850 W (rated)
Performance per dollar11.44
Released2020

Specifications

BrandCaldera
ModelCaldera PW-4438 Plus
Rated output850 W continuous
Efficiency80 PLUS Gold (90% at 50% load, 115 V)
StandardATX 12V 2.53
GPU powerNone
PCIe 8-pin3×
Form factorATX
ModularityFully modular
Fan120 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-9555 Max 1000W 80 PLUS Titanium SFX Power Supply2,351$219Compare
Vantrel PW-7447 Plus 1000W 80 PLUS Platinum ATX Power Supply1,943$179Compare
Caldera PW-3689 Max 1200W 80 PLUS Titanium ATX Power Supply2,588$329Compare
Vantrel PW-3138 Prime 750W 80 PLUS Gold ATX 3.0 Power Supply1,241$69Compare
Caldera PW-3926 Edge 1000W 80 PLUS Gold ATX 3.1 Power Supply2,080$219Compare
Zephyra PW-8019 Prime 650W 80 PLUS Bronze ATX Power Supply973$39Compare

All Power Supplies · JSON

Cite this page: Hardware Spec Index, “Caldera PW-4438 Plus 850W 80 PLUS Gold ATX Power Supply”, https://vextor7.com/item/14836601 (accessed 2026-10-19).