MSI MAG A850GLS 850W 80 PLUS Gold Fully Modular PSU

Product Overview

The MSI MAG A850GLS 850W Power Supply (MPN: MAG A850GLS) is a high-performance ATX 3.1 compliant PSU built for modern gaming PCs and powerful hardware configurations.

Featuring 850W continuous power output, 80 PLUS Gold efficiency, and a fully modular cable design, it provides reliable power delivery while improving system cable management and airflow.

With native PCIe 5.1 support and a 12V-2x6 connector, it is ready for next-generation NVIDIA RTX graphics cards.

Core Specifications

Power Output: 850W continuous, with up to 1870W excursion (220%) for 100μs

Efficiency: 80 PLUS Gold certified (up to 90%)

Form Factor: ATX 3.1 compliant

Modularity: Fully modular design for flexible cable management

Fan: 135 mm fluid dynamic bearing fan (optimized for low noise and long lifespan)

Dimensions: 150 × 150 × 86 mm

Input Voltage: 100–240V~, 12A, 47–63Hz

Connectors

ATX (24‑pin): 1

EPS (8‑pin): 1

EPS (4+4‑pin): 1

PCIe 5.1 (16‑pin, 12V‑2x6): 1 (supports up to 600W)

PCIe (6+2‑pin): 4

SATA (15‑pin): 8

Molex (4‑pin): 3

FDD (4‑pin): 1

Protection Features

OCP: Over Current Protection

OVP: Over Voltage Protection

UVP: Under Voltage Protection

OPP: Over Power Protection

OTP: Over Temperature Protection

SCP: Short Circuit Protection

SIP/NLO: Surge & No Load protection

Performance Highlights

GPU Ready: Native 12V‑2x6 connector supports NVIDIA RTX 40 & 50 series cards.

Power Excursion: Handles 3× GPU power excursions safely.

Noise Optimization: Designed for quiet operation, even under heavy loads.

Durability: Copper alloy terminals, UL‑certified braided cables, and 105°C main capacitors ensure long-term reliability.

MTTF: 150,000 hours at 25°C