MSI MAG A1000GLS PCIE5 1000W 80+ Gold Fully Modular PCIe 5.0 ATX 3.1 Power Supply Unit

1000W Fully Modular ATX 3.1 PSU — 80 PLUS Gold (up to 90% efficiency), Native 12V-2x6 PCIe 5.1 16‑Pin (600W) Connector, LLC Half-Bridge DC-to-DC Design, 135mm FDB Fan, Up to 220% Total & 3× GPU Power Excursion Support, 7‑Year Warranty.

The MSI MAG A1000GLS PCIE5 is a 1000W 80 PLUS Gold fully modular power supply designed for high-end RTX 40/50‑series and future NVIDIA 50‑series gaming rigs and AI PCs. It is ATX 3.1 ready with native 12V‑2x6 (H++) PCIe 5.1 connectors that can deliver up to 600W to a GPU, and it supports up to 220% total power excursion plus 3× GPU power excursion, as specified in Intel’s ATX 3.1 guidelines. A robust LLC half-bridge DC‑to‑DC topology, 135mm fluid dynamic bearing fan, main 105°C capacitors, and full industrial protections ensure stable, quiet and durable power delivery for demanding systems.[web:457][web:458][web:462][web:461][web:460][web:465]

• ATX 3.1 & PCIe 5.1 Ready — Compliant with ATX 3.1 and PCIe CEM 5.1 standards, designed specifically to handle next‑gen NVIDIA 40/50‑series GPUs and AI‑focused PCs.[web:457][web:458][web:462]
• Native 12V‑2x6 H++ Connector — Latest 12V‑2x6 PCIe 5.1 connector with optimized structure, capable of delivering up to 600W to high‑end graphics cards while improving reliability and safety.[web:457][web:458][web:462][web:465]
• 80 PLUS Gold Efficiency — 80 PLUS Gold certified, up to about 90% efficiency at typical loads for lower power loss, less heat, and better overall efficiency.[web:457][web:461][web:462]
• High Power Excursion Support — Output port compliant with Intel PSDG ATX 3.1 can handle up to 220% total power excursion and 3× GPU power excursion for transient spikes.[web:457][web:458][web:462][web:460]
• LLC Half-Bridge DC-to-DC Platform — LLC half‑bridge with DC‑to‑DC module design provides tight voltage regulation and low ripple across all rails.[web:462][web:461]
• 135mm Fluid Dynamic Bearing Fan — 135mm FDB fan is tuned for low noise and long life, with optimized acoustic performance under load.[web:461][web:462][web:459]
• Main 105°C Capacitor — Uses high‑temperature 105°C main capacitor for enhanced durability and stability under heavy loads.[web:457][web:458][web:461]
• Fully Modular Flat Cables — Fully modular design with flat embossed jacket cables improves bending, routing, and airflow in tight cases.[web:458][web:461][web:460][web:465]
• Industrial-Level Protections — OCP, OVP, OPP, OTP, SCP, UVP, plus SIP and NLO in MSI India spec, help protect both PSU and components.[web:458][web:461][web:462]
• Supports RTX 40/50 & AI PCs — Marketed specifically to handle RTX 40 & 50 series GPUs and AI workloads, ideal for high‑wattage gaming or creator rigs.[web:457][web:458][web:462][web:460]