Hardware Spec Index

Caldera PW-1917 Ultra 550W 80 PLUS Bronze ATX 3.1 Power Supply

Power Supplies · Caldera · SKU PW1917-ULTRA · Released 2025 · Updated 2026-10-22

Key facts

Benchmark index925 (Power Supplies scale)
Category rank#40,721
Street price$49
Power550 W (rated)
Performance per dollar18.88
Released2025

Specifications

BrandCaldera
ModelCaldera PW-1917 Ultra
Rated output550 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-pin1×
Form factorATX
ModularitySemi-modular
Fan140 mm fluid dynamic bearing, zero-RPM mode
Hold-up time≥ 17 ms
ProtectionsOCP, OVP, UVP, OPP, OTP, SCP
Warranty7 years

Related guides

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

Similar Power Supplies

ModelBenchmarkPriceCompare
Zephyra PW-2679 Core 850W 80 PLUS Gold ATX 3.1 Power Supply1,706$119Compare
Novexa PW-5805 Pro 750W 80 PLUS Gold SFX Power Supply1,611$99Compare
Vantrel PW-6598 Ti 750W 80 PLUS Gold ATX 3.1 Power Supply1,487$99Compare
Caldera PW-2451 Ultra 1000W 80 PLUS Platinum ATX Power Supply2,040$209Compare
Novexa PW-8236 Pro 650W 80 PLUS Gold ATX 3.1 Power Supply1,216$59Compare
Teralux PW-2660 Core 850W 80 PLUS Gold ATX 3.1 Power Supply1,631$129Compare

All Power Supplies · JSON

Cite this page: Hardware Spec Index, “Caldera PW-1917 Ultra 550W 80 PLUS Bronze ATX 3.1 Power Supply”, https://vextor7.com/item/932149 (accessed 2026-10-22).