THERMALTAKE Smart BX3 650W 80+ Bronze Non Modular ATX 3.1 Power Supply (650 W)

The Thermaltake Smart BX3 650W is an entry-level ATX power supply built to the ATX 3.1 specification, making it a practical choice for budget-conscious mid-range desktop and gaming builds. It carries 80 PLUS Bronze certification, and the manufacturer rates its energy efficiency at up to 85%, which helps keep heat output and running costs in check during everyday use. Cooling is handled by a 120mm fluid dynamic bearing fan, while the Smart Zero Fan function keeps the fan idle until the load rises past a set threshold, reducing noise at light workloads. A high-quality 105°C main capacitor supports long-term stability, and the unit uses a single high-amperage +12V rail with a DC-to-DC design for cleaner voltage regulation. Because it meets ATX 3.1, it is rated to handle up to 200% power excursion, giving extra headroom for modern graphics cards. This is a non-modular unit with soft, flat black cables for tidier routing inside the case. Connector provision includes 2x PCIe (6+2), 4x SATA and 4x 4-pin peripheral connectors. A full protection suite is built in: OCP, OVP, UVP, OPP, SCP and OTP. The PSU is also optimised for Intel C6/C7 low-power states. Verifiable specifications: model PS-SPD-0650NNFABD-3; 650 W rated output; 80 PLUS Bronze certified; ATX 3.1 form factor; non-modular flat cabling; 2x PCIe (6+2), 4x SATA and 4x peripheral (4-pin) connectors; 120mm fluid dynamic bearing fan; 5-year warranty. Backed by Thermaltake’s 5-year warranty, the Smart BX3 650W suits reliable everyday computing and mid-range single-GPU gaming systems