Corsair HX1200i (2025, ATX 3.1)

Cat. no. psu-corsair-hx1200i

Curator note

The smallest PSU on this list: 1200 W covers about two power-limited cards by this site's estimate, so it suits a two-card build rather than a four-card one. Its two 12V-2x6 cables are the connectors for RTX 4090 or 5090-class cards, and five 8-pin PCIe connectors cover older cards such as the RTX 3090; the 12V-2x6 cables use the same sockets as the 8-pin ones, so the two counts can't all be used together. At 200 mm long it fits most ATX cases.

No paid placement

Specifications

Wattage 1,200 W Source
Efficiency 80+ Platinum Source
8-pin PCIe 5 Source
12V-2x6 2 Source
ATX 3.x Yes Source
Length 200 mm Source

Derived metrics

GPUs supported 2 Computed

Used in build tiers