Hardware Spec Index

Zephyra PW-3664 Max 850W 80 PLUS Gold ATX 3.1 Power Supply

Power Supplies · Zephyra · SKU PW3664-MAX · Released 2025 · Updated 2026-10-19

Key facts

Benchmark index1,668 (Power Supplies scale)
Category rank#35,657
Street price$99
Power850 W (rated)
Performance per dollar16.85
Released2025

Specifications

BrandZephyra
ModelZephyra PW-3664 Max
Rated output850 W continuous
Efficiency80 PLUS Gold (90% at 50% load, 115 V)
StandardATX 3.1 / PCIe CEM 5.1
GPU power1× 12V-2x6 (600 W)
PCIe 8-pin2×
Form factorATX
ModularityFully modular
Fan135 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

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Cite this page: Hardware Spec Index, “Zephyra PW-3664 Max 850W 80 PLUS Gold ATX 3.1 Power Supply”, https://vextor7.com/item/626449 (accessed 2026-10-19).