Hardware Spec Index

Caldera PW-6538 Ultra 1200W 80 PLUS Platinum ATX 3.1 Power Supply

Power Supplies · Caldera · SKU PW6538-ULTRA · Released 2026 · Updated 2026-10-27

Key facts

Benchmark index2,830 (Power Supplies scale)
Category rank#12,222
Street price$349
Power1200 W (rated)
Performance per dollar8.11
Released2026

Specifications

BrandCaldera
ModelCaldera PW-6538 Ultra
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
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
Vantrel PW-2907 Plus 1600W 80 PLUS Titanium ATX Power Supply2,803$379Compare
Teralux PW-5641 SE 1000W 80 PLUS Gold ATX Power Supply1,844$129Compare
Novexa PW-4968 Prime 850W 80 PLUS Gold ATX Power Supply1,276$69Compare
Zephyra PW-6726 SE 1600W 80 PLUS Titanium ATX Power Supply2,905$309Compare
Vantrel PW-8344 Pro 1000W 80 PLUS Gold ATX 3.1 Power Supply1,843$149Compare
Zephyra PW-6927 Ti 1000W 80 PLUS Gold ATX Power Supply1,859$159Compare

All Power Supplies · JSON

Cite this page: Hardware Spec Index, “Caldera PW-6538 Ultra 1200W 80 PLUS Platinum ATX 3.1 Power Supply”, https://vextor7.com/item/10520191 (accessed 2026-10-27).