Hardware Spec Index

Caldera PW-4977 Ultra 1300W 80 PLUS Titanium ATX 3.0 Power Supply

Power Supplies · Caldera · SKU PW4977-ULTRA · Released 2022 · Updated 2026-10-22

Key facts

Benchmark index2,533 (Power Supplies scale)
Category rank#582
Street price$309
Power1300 W (rated)
Performance per dollar8.20
Released2022

Specifications

BrandCaldera
ModelCaldera PW-4977 Ultra
Rated output1,300 W continuous
Efficiency80 PLUS Titanium (94% at 50% load, 115 V)
StandardATX 3.0 / PCIe CEM 5.0
GPU power1× 12VHPWR (600 W)
PCIe 8-pin4×
Form factorATX
ModularityFully modular
Fan140 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-4137 XT 850W 80 PLUS Gold ATX 3.1 Power Supply1,753$139Compare
Vantrel PW-6057 SE 1300W 80 PLUS Platinum ATX 3.1 Power Supply2,770$329Compare
Caldera PW-3086 Plus 650W 80 PLUS Gold ATX Power Supply691$39Compare
Caldera PW-7193 Plus 550W 80 PLUS Gold ATX 3.1 Power Supply1,080$49Compare
Caldera PW-2331 Pro 550W 80 PLUS Bronze ATX 3.0 Power Supply874$39Compare
Teralux PW-7241 Core 1000W 80 PLUS Gold ATX Power Supply2,435$249Compare

All Power Supplies · JSON

Cite this page: Hardware Spec Index, “Caldera PW-4977 Ultra 1300W 80 PLUS Titanium ATX 3.0 Power Supply”, https://vextor7.com/item/3973494 (accessed 2026-10-22).