Hardware Spec Index

Zephyra PW-1981 Ti 550W 80 PLUS Bronze ATX 3.1 Power Supply

Power Supplies · Zephyra · SKU PW1981-TI · Released 2025 · Updated 2026-10-23

Key facts

Benchmark index826 (Power Supplies scale)
Category rank#26,448
Street price$39
Power550 W (rated)
Performance per dollar21.18
Released2025

Specifications

BrandZephyra
ModelZephyra PW-1981 Ti
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
Warranty5 years

Related guides

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

Similar Power Supplies

ModelBenchmarkPriceCompare
Novexa PW-5413 Edge 1000W 80 PLUS Platinum ATX Power Supply2,182$179Compare
Caldera PW-3092 Max 1300W 80 PLUS Gold ATX 3.0 Power Supply2,489$279Compare
Novexa PW-3634 Pro 1600W 80 PLUS Platinum ATX Power Supply2,693$329Compare
Novexa PW-8109 SE 1300W 80 PLUS Titanium ATX Power Supply2,602$269Compare
Vantrel PW-1220 Ultra 550W 80 PLUS Bronze ATX 3.1 Power Supply878$39Compare
Novexa PW-1502 Core 850W 80 PLUS Gold ATX 3.1 Power Supply2,158$199Compare

All Power Supplies · JSON

Cite this page: Hardware Spec Index, “Zephyra PW-1981 Ti 550W 80 PLUS Bronze ATX 3.1 Power Supply”, https://vextor7.com/item/69014202 (accessed 2026-10-23).