Hardware Spec Index

Zephyra PW-1248 XT 550W 80 PLUS Bronze ATX Power Supply

Power Supplies · Zephyra · SKU PW1248-XT · Released 2019 · Updated 2026-10-20

Key facts

Benchmark index778 (Power Supplies scale)
Category rank#28,428
Street price$39
Power550 W (rated)
Performance per dollar19.95
Released2019

Specifications

BrandZephyra
ModelZephyra PW-1248 XT
Rated output550 W continuous
Efficiency80 PLUS Bronze (85% at 50% load, 115 V)
StandardATX 12V 2.53
GPU powerNone
PCIe 8-pin2×
Form factorATX
ModularityNon-modular
Fan140 mm fluid dynamic bearing, zero-RPM mode
Hold-up time≥ 16 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
Novexa PW-1677 Prime 850W 80 PLUS Gold ATX Power Supply1,344$89Compare
Caldera PW-3447 Plus 750W 80 PLUS Gold ATX 3.1 Power Supply1,116$69Compare
Teralux PW-3090 SE 1600W 80 PLUS Titanium ATX 3.0 Power Supply2,669$339Compare
Caldera PW-1358 XT 1000W 80 PLUS Gold ATX Power Supply2,124$219Compare
Novexa PW-9637 Plus 1000W 80 PLUS Platinum ATX 3.0 Power Supply2,284$269Compare
Vantrel PW-9784 Prime 1000W 80 PLUS Gold ATX 3.1 Power Supply2,088$229Compare

All Power Supplies · JSON

Cite this page: Hardware Spec Index, “Zephyra PW-1248 XT 550W 80 PLUS Bronze ATX Power Supply”, https://vextor7.com/item/6134488 (accessed 2026-10-20).