MSI Mag A850GL PCIE5.1 ATX 3.1 Gold Fully Modular SMPS

The MSI MAG A850GL is an 850-watt fully modular power supply built around the ATX 3.1 standard, making it a forward-looking choice for high-performance desktop builds. Carrying an 80 Plus Gold efficiency rating — delivering up to 90% efficiency — it converts more wall power into usable system power, reducing heat output and lowering energy costs over the long run compared with lower-rated units. Native support for PCIe 5.1 is delivered through a single 16-pin (600W) cable with MSI’s dual-colour design, allowing direct connection to the latest discrete graphics cards including the NVIDIA GeForce RTX 40 Series without the need for adapters. Four additional PCIe 6+2 pin connectors extend compatibility across a broad range of GPU configurations. The fully modular cabling system means only the cables your build actually needs are attached, reducing clutter and promoting better airflow inside the chassis. Flat cables further simplify routing through tight spaces. Cooling is handled by a 120 mm fluid dynamic bearing fan, chosen for its low noise profile and extended service life compared with sleeve-bearing alternatives. Power delivery is stabilised by an Active PFC design covering an input voltage range of 100–240 VAC at 47–63 Hz, making it suitable for use on Indian mains supplies. An LLC Full Bridge Topology combined with a DC-DC module design helps maintain tight voltage regulation across the 12V, 5V, and 3.3V rails. A comprehensive protection suite — Over Current Protection (OCP), Over Voltage Protection (OVP), Over Power Protection (OPP), Over Temperature Protection (OTP), Short Circuit Protection (SCP), and Under Voltage Protection (UVP) — guards connected components against electrical faults. The unit also supports a brief power excursion rating of 1700W for up to 100 µs, accommodating the transient spikes demanded by ATX 3.1-compliant graphics cards at startup. MSI backs the MAG A850GL with a 7-year limited warranty. Key Specifications: – Rated Power: 850W – Efficiency: 80 Plus Gold (up to 90%) – Standard: ATX 3.1, PCIe 5.1 – Modular: Fully Modular – Fan: 120 mm, Fluid Dynamic Bearing – PFC: Active PFC – Input: 100–240 VAC, 47–63 Hz – Dimensions (D×W×H): 140 × 150 × 86 mm – Connectors: 1× ATX 24-pin, 2× EPS 4+4-pin, 1× PCIe 5.0 16-pin (600W), 4× PCIe 6+2-pin, 8× SATA 15-pin, 4× Molex 4-pin, 1× FDD 4-pin – Protection: OCP / OVP / OPP / OTP / SCP / UVP – Power Excursion: 1700W (up to 200% rated power for 100 µs) – Warranty: 7 Years – GTIN: 1287043043907