The PHANTEKS AMP GH 850W 80 PLUS GOLD WHITE (ATX 3.1, PCIE 5.1) is a fully modular ATX power supply built to the ATX 3.1 standard and compatible with PCIe 5.1 (via a 12V-2×6 GPU connector). It delivers 850 W of continuous power with Gold-level efficiency, uses a 120 mm hydraulic/fluid dynamic bearing fan, and supports a hybrid “fanless” mode under light loads for quieter operation. The unit is compact at 140 mm depth and employs gold-plated high current terminals along with protections (OVP, OCP, SCP, OTP, etc.). It carries an 8-year warranty and weighs about 1.40 kg (net).