MSI MEG Ai1300P PCIE5

Released October 28, 2022 in Japan as part of MSI’s MEG Ai PCIE5 line—MSI’s first ATX 3.x/PCIe 5–ready PSUs—the MEG Ai1300P PCIE5 is a 1300 W, 80 PLUS Platinum, fully modular ATX unit. Current product pages list ATX 3.1 and PCIe 5.1 readiness with a native 16‑pin connector and up to 600 W to the GPU, plus support for 2× total and 3× GPU power excursions. It remains an active product (not discontinued).

Positioned in the enthusiast tier, it exists to supply high transient loads from top GPUs while leaving ample overclocking headroom. Good for high‑end GPU builds, ATX 3.0/3.1 GPUs, and headroom/overclocking; the 160 mm depth helps fit in most ATX cases. Notable: MSI Center USB telemetry enables real‑time PSU monitoring and controls.