MSI MPG A850GS PCIE5 850W 80 PLUS Gold Fully Modular ATX 3.1 PSU

Description

Overview

The MSI MPG A850GS PCIE5 is a purpose‑built 850W PSU aimed at gamers and creators building modern ATX 3.1 systems. It combines 80 PLUS Gold efficiency with a semi‑digital design, 100% server‑grade 105°C capacitors and a 135 mm fluid‑dynamic bearing fan to balance performance, longevity and acoustic levels. The unit includes a native PCIe 5.1 16‑pin connector (rated for up to 600W) and multiple 6+2 PCIe cables to support current high‑end GPUs. ([us.msi.com](https://us.msi.com/Power-Supply/MPG-A850GS-PCIE5))

Key features

• 850W continuous output, 80 PLUS Gold efficiency.
• ATX 3.1 / PSDG‑compliant design with enhanced power excursion handling.
• Native PCIe 5.1 16‑pin (1×) plus 3× 6+2 PCIe connectors and 2× EPS (4+4) CPU connectors.
• Fully modular cable set with embossed‑jacket cables for improved routing.
• Zero‑fan mode below ~60% load, and Cybenetics A++ quietness rating.
• 100% server‑grade 105°C electrolytic capacitors and industrial protection suite.

Technical specifications

• Manufacturer number: MPG A850GS PCIE5. ([us-store.msi.com](https://us-store.msi.com/MPG-A850GS-PCIE5))
• Rated power: 850 W. ([storage-asset.msi.com](https://storage-asset.msi.com/datasheet/power-supply/global/MPG-A850GS-PCIE5.pdf))
• Efficiency: 80 PLUS Gold (up to ~90%). ([storage-asset.msi.com](https://storage-asset.msi.com/datasheet/power-supply/global/MPG-A850GS-PCIE5.pdf))
• Form factor: ATX, fully modular; ATX 3.1 / PSDG compliant. ([us.msi.com](https://us.msi.com/Power-Supply/MPG-A850GS-PCIE5))
• Connectors: 1× ATX 24‑pin, 2× EPS (4+4), 1× PCIe 5.1 16‑pin (600W), 3× PCIe 6+2, 8× SATA, 4× peripheral. ([storage-asset.msi.com](https://storage-asset.msi.com/datasheet/power-supply/global/MPG-A850GS-PCIE5.pdf))
• Fan: 135 mm, fluid‑dynamic bearing; zero‑fan mode supported. ([storage-asset.msi.com](https://storage-asset.msi.com/datasheet/power-supply/global/MPG-A850GS-PCIE5.pdf))
• Dimensions: 150 × 150 × 86 mm. ([storage-asset.msi.com](https://storage-asset.msi.com/datasheet/power-supply/global/MPG-A850GS-PCIE5.pdf))
• Input: 100–240 V~, 10 A, 50–60 Hz. ([storage-asset.msi.com](https://storage-asset.msi.com/datasheet/power-supply/global/MPG-A850GS-PCIE5.pdf))
• Protection: OCP / OTP / OPP / SCP / OVP / UVP / SIP / NLO. ([storage-asset.msi.com](https://storage-asset.msi.com/datasheet/power-supply/global/MPG-A850GS-PCIE5.pdf))
• Capacitors: 100% server‑grade 105°C electrolytic capacitors. ([us.msi.com](https://us.msi.com/Power-Supply/MPG-A850GS-PCIE5))
• Warranty: 10‑year limited warranty (MSI). ([us-store.msi.com](https://us-store.msi.com/MPG-A850GS-PCIE5))