Hardware Spec Index

Caldera PW-4242 Ultra 850W 80 PLUS Gold ATX 3.1 Power Supply

Power Supplies · Caldera · SKU PW4242-ULTRA · Released 2024 · Updated 2026-10-22

Key facts

Benchmark index1,727 (Power Supplies scale)
Category rank#25,699
Street price$129
Power850 W (rated)
Performance per dollar13.39
Released2024

Specifications

BrandCaldera
ModelCaldera PW-4242 Ultra
Rated output850 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
Fan140 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-1765 Ti 1600W 80 PLUS Titanium ATX 3.0 Power Supply2,693$399Compare
Vantrel PW-8400 Ti 850W 80 PLUS Gold ATX 3.1 Power Supply2,101$189Compare
Zephyra PW-5350 XT 750W 80 PLUS Gold ATX 3.1 Power Supply1,475$89Compare
Zephyra PW-7869 Edge 550W 80 PLUS Gold ATX Power Supply821$39Compare
Novexa PW-7954 Edge 1200W 80 PLUS Titanium ATX 3.0 Power Supply2,565$309Compare
Zephyra PW-8217 Prime 1200W 80 PLUS Gold ATX 3.1 Power Supply2,517$279Compare

All Power Supplies · JSON

Cite this page: Hardware Spec Index, “Caldera PW-4242 Ultra 850W 80 PLUS Gold ATX 3.1 Power Supply”, https://vextor7.com/item/21490883 (accessed 2026-10-22).