Hardware Spec Index

Caldera PW-7841 Prime 850W 80 PLUS Bronze ATX 3.1 Power Supply

Power Supplies · Caldera · SKU PW7841-PRIME · Released 2024 · Updated 2026-10-20

Key facts

Benchmark index1,332 (Power Supplies scale)
Category rank#39,579
Street price$79
Power850 W (rated)
Performance per dollar16.86
Released2024

Specifications

BrandCaldera
ModelCaldera PW-7841 Prime
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
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
Novexa PW-4906 Ti 550W 80 PLUS Gold ATX 3.1 Power Supply957$49Compare
Vantrel PW-6180 XT 750W 80 PLUS Gold SFX Power Supply1,374$79Compare
Caldera PW-9867 Prime 1000W 80 PLUS Gold ATX 3.1 Power Supply1,974$199Compare
Teralux PW-5552 Prime 1600W 80 PLUS Platinum ATX 3.1 Power Supply2,839$329Compare
Zephyra PW-1641 Prime 1000W 80 PLUS Gold SFX Power Supply1,801$129Compare
Vantrel PW-5329 Plus 550W 80 PLUS Gold ATX Power Supply967$49Compare

All Power Supplies · JSON

Cite this page: Hardware Spec Index, “Caldera PW-7841 Prime 850W 80 PLUS Bronze ATX 3.1 Power Supply”, https://vextor7.com/item/2228082 (accessed 2026-10-20).