ASRock PRO-M850G 850W - PSU, 80 Plus Gold

The ASRock 850 W 80 PLUS Gold Fully Modular ATX 3.1 Power Supply provides regulated power for desktop PCs, including gaming systems and workstations. Its 850 W rating is the main capacity figure to consider when matching it to a system’s power requirements. The unit is 80 PLUS Gold certified, with a stated efficiency of 90%. ATX 3.1 support is paired with PCIe 5.1 readiness. A native 12V-2x6 connector provides a direct power connection for compatible graphics cards.

Fully modular cabling allows builders to connect only the cables required by their components. Unused cables can remain outside the case rather than occupying routing space. Cooling is handled by a single 135 mm fan. The stated noise level is 20 dB, although the supplied specification does not identify the measurement conditions. A black exterior gives the unit a plain appearance without illumination. Its ATX form factor requires a case with a compatible power-supply bay.

• 24-pin motherboard power connection supplies the main board power input.
• 4+4-pin CPU power connection supports a split processor power plug.
• Three 6+2-pin PCIe connectors provide connections for compatible graphics cards.
• Eight SATA power connectors accommodate storage drives and other SATA-powered devices.
• Eight protection functions cover over-current, over-power, over-voltage, under-voltage, over-temperature, short-circuit, surge, and in-rush protection.
• 0–50 °C operating temperature range defines the stated operating limits.
• 100,000-hour MTBF is the specified mean time between failures.