Hardware Spec Index

Caldera PW-9858 Prime 1200W 80 PLUS Platinum ATX 3.1 Power Supply

Power Supplies · Caldera · SKU PW9858-PRIME · Released 2025 · Updated 2026-10-25

Key facts

Benchmark index2,549 (Power Supplies scale)
Category rank#27,769
Street price$339
Power1200 W (rated)
Performance per dollar7.52
Released2025

Specifications

BrandCaldera
ModelCaldera PW-9858 Prime
Rated output1,200 W continuous
Efficiency80 PLUS Platinum (92% at 50% load, 115 V)
StandardATX 3.1 / PCIe CEM 5.1
GPU power1× 12V-2x6 (600 W)
PCIe 8-pin3×
Form factorATX
ModularityFully modular
Fan135 mm fluid dynamic bearing, zero-RPM mode
Hold-up time≥ 17 ms
ProtectionsOCP, OVP, UVP, OPP, OTP, SCP
Warranty12 years

Related guides

80 PLUS Efficiency Ratings ExplainedATX 3.1 Power Supplies and the 12V-2x6 Connector

Similar Power Supplies

ModelBenchmarkPriceCompare
Caldera PW-2513 SE 1600W 80 PLUS Platinum ATX 3.0 Power Supply2,740$379Compare
Caldera PW-9849 Plus 850W 80 PLUS Gold ATX Power Supply1,377$79Compare
Zephyra PW-4298 Prime 1000W 80 PLUS Gold ATX Power Supply2,347$209Compare
Novexa PW-1082 Pro 1200W 80 PLUS Gold ATX Power Supply2,141$199Compare
Zephyra PW-3928 Max 1200W 80 PLUS Titanium ATX Power Supply2,541$329Compare
Teralux PW-3231 Ti 1000W 80 PLUS Gold ATX 3.1 Power Supply1,808$179Compare

All Power Supplies · JSON

Cite this page: Hardware Spec Index, “Caldera PW-9858 Prime 1200W 80 PLUS Platinum ATX 3.1 Power Supply”, https://vextor7.com/item/1173178 (accessed 2026-10-25).