Thermaltake ToughPower GF A3 Gold 850 Watt ATX 3.1 Fully Modular SMPS

The Thermaltake ToughPower GF A3 Gold 850W is a fully modular power supply built to the latest Intel ATX 3.1 specification, making it a ready choice for high-performance gaming and workstation builds that demand stable, clean power delivery. Certified 80 PLUS Gold, the unit achieves up to 90% energy efficiency under typical loads, reducing heat output and helping keep energy costs in check over the life of your system. At the heart of its next-generation readiness is a native PCIe Gen 5.1 16-pin (12VHPWR) connector capable of delivering up to 450W directly to a compatible graphics card — eliminating the risk of adapter-related power concerns for current and upcoming GPU generations. The ATX 3.1 standard also mandates support for up to 200% power excursion headroom, so brief transient spikes from demanding GPUs are handled without nuisance shutdowns or rail instability. A high-amperage single +12V rail, combined with LLC resonant conversion and DC-to-DC topology for minor rails, ensures tightly regulated voltages across varying load conditions. The primary filter capacitor is sourced from a Japanese manufacturer, contributing to long-term reliability. Thermal management is handled by a 120mm fluid dynamic bearing fan that only activates once system load exceeds 40%, keeping acoustics near-silent during light desktop or media use. Cable management is simplified by a fully modular design paired with low-profile flat black cables, which ease routing through tight chassis spaces and promote better internal airflow. A comprehensive suite of hardware protections — including Over Current Protection (OCP), Over Voltage Protection (OVP), Under Voltage Protection (UVP), Over Power Protection (OPP), Short Circuit Protection (SCP), and Over Temperature Protection (OTP) — safeguards connected components. The unit also supports Intel C6/C7 processor sleep states for deeper system-level power savings. Verified Specifications: - Wattage: 850W - ATX Standard: ATX 3.1 - Efficiency Certification: 80 PLUS Gold (up to 90% efficiency) - Modular: Fully Modular - Fan: 120mm Fluid Bearing (Smart Zero Fan, activates above 40% load) - PCIe Connector: 1× native 16-pin 12VHPWR (PCIe Gen 5.1, up to 450W) - PCIe (6+2-pin) Connectors: 4 - SATA Connectors: 8 - Peripheral (4-pin) Connectors: 4 - Protections: OCP, OVP, UVP, OPP, SCP, OTP - Warranty: 10 Years - SKU: PS-TPD-0850FNFAGD-H-ATX-3-1