Thermaltake Toughpower GF A3 850W ATX 3.0 power supply PS-TPD-0850FNFAGU-L

Power delivery for modern builds

This Thermaltake Toughpower GF A3 unit supplies 850 W of continuous power and meets the Intel ATX 3.0 specification. A native 12VHPWR connector is included, rated for 450 W to support PCIe 5.0 graphics cards. The fully modular design uses black flat cables to simplify cable routing inside the case. Japanese 105°C main capacitors and a single +12 V rail provide stable output up to 45 °C ambient temperature.

Suited for high-end GPUs and quiet systems

Builders pairing a PCIe 5.0 graphics card with a capable CPU will benefit from the 12VHPWR connection and 80 PLUS Gold efficiency. The Smart Zero Fan mode stops the 120 mm fluid dynamic bearing fan at low loads, reducing noise during light workloads. Systems that do not require a 12VHPWR connector or need more than 850 W should consider other units.

Fits standard ATX layouts with full modularity

At 150 mm long, the PSU fits most mid-tower and larger cases that accept standard ATX power supplies. Full modularity lets you connect only the cables required: 24-pin motherboard, four 6+2-pin PCIe, eight SATA and the 12VHPWR lead. The single +12 V rail eliminates the need to balance loads across multiple rails, freeing up headroom for transient power spikes.