PC Power Supply - 400W, ATX, 80 PLUS, efficiency of 85%, 2 piece(s) PCIe (8-pin / 6+2-pin), 4 × SATA, active PFC, thermal speed control and power switch, 120mm fan, depth of 140mm The Strider Essential 80Plus ST40F-ES230 ranks amongst the high-end series of affordable SilverStone power supplies with its proven design, high-quality components and great performance. Its 80 PLUS certification shows it to also be highly efficient (up to 85% under 230V). With a strong 12V connector and silent fan, it delivers stable performance with minimal noise (18dBA). At ambient temperatures of 40°C, the manufacturer guarantees will run continuously without issue. The Strider Essential 80Plus also features PFCs and PCI-Express 8/6 pin connectors. The ST40F-ES230 Model reaches 400 watts.Key Features of the SilverStone Strider Essential 80Plus80 PLUS certified high efficiency24/7 operation at up to 40°CActive PFCQuiet 120mm fan (18dBa)Power supply with PCI-E 8/6-pin support