Hardware Spec Index

Caldera PW-2277 Ultra 1200W 80 PLUS Platinum ATX 3.1 Power Supply

Power Supplies · Caldera · SKU PW2277-ULTRA · Released 2024 · Updated 2026-10-21

Key facts

Benchmark index2,400 (Power Supplies scale)
Category rank#21,571
Street price$259
Power1200 W (rated)
Performance per dollar9.27
Released2024

Specifications

BrandCaldera
ModelCaldera PW-2277 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
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
Teralux PW-1684 Plus 1300W 80 PLUS Titanium ATX 3.1 Power Supply2,892$389Compare
Vantrel PW-6664 XT 550W 80 PLUS Gold ATX 3.0 Power Supply1,077$59Compare
Zephyra PW-2836 Pro 1600W 80 PLUS Titanium ATX 3.0 Power Supply2,817$329Compare
Zephyra PW-9665 SE 1000W 80 PLUS Gold SFX Power Supply1,862$139Compare
Novexa PW-4250 Core 750W 80 PLUS Gold ATX Power Supply1,395$79Compare
Caldera PW-2730 Core 550W 80 PLUS Gold ATX Power Supply1,071$59Compare

All Power Supplies · JSON

Cite this page: Hardware Spec Index, “Caldera PW-2277 Ultra 1200W 80 PLUS Platinum ATX 3.1 Power Supply”, https://vextor7.com/item/2867124 (accessed 2026-10-21).