Thermaltake Toughpower SFX 850W power supply PS-STP-0850FNFAPU-1

SFX 850 W power supply

This SFX-form-factor unit delivers 850 W of continuous power and meets the ATX 12V 3.1 specification. It is built for compact systems that still demand high output, such as small-form-factor gaming rigs or workstation builds. Full modular cabling keeps the interior tidy and improves airflow in tight chassis. The 90 mm fluid-dynamic-bearing fan runs quietly under typical loads.

80 PLUS Platinum efficiency and 12V-2x6 connector

The supply is 80 PLUS Platinum certified at 115 V input, so it wastes less energy and generates less heat across the load range. A native 12V-2x6 connector rated for 450 W feeds modern graphics cards without adapters. Two 6+2-pin PCIe cables provide additional GPU power options. The single +12 V rail design simplifies power distribution for high-draw components.

125 mm depth fits SFX cases

At 125 mm long the unit fits standard SFX mounting brackets and leaves room for cable routing behind the motherboard tray. Full modularity means only the cables the build actually needs are installed, freeing space for storage drives or custom loops. Active PFC and a 100-240 V input range allow worldwide use without a voltage switch. Protection circuits include OVP, UVP, OCP, OPP, SCP and OTP.