CORSAIR CX650M 650W 80+ Bronze ATX 3.1 Semi Modular Power Supply

The Corsair CX650M is a 650-watt semi-modular power supply unit built to the ATX 3.1 standard and rated PCIe 5.1 ready, making it a solid foundation for modern mid-range PC builds. Part of Corsair's CX-M Series, it carries an 80 Plus Bronze certification and is independently Cybenetics Bronze certified, delivering up to 85% efficiency under typical loads for lower power consumption and reduced heat output compared to uncertified units. One of the CX650M's standout features is its native 12V-2x6 GPU power cable. This single cable can supply up to 450W to the graphics card and includes a two-tone connector that provides a visual confirmation of a secure, fully seated connection — a useful safeguard when building or upgrading to the latest generation of discrete GPUs. Internally, the CX650M is constructed with a resonant LLC topology combined with DC-DC conversion circuitry, and uses 105°C-rated industrial-grade capacitors for improved long-term reliability under sustained loads. The power delivery architecture meets ATX 3.1 compliance requirements, meaning it can handle the transient power spikes common with modern high-performance CPUs and GPUs. The semi-modular cable design keeps essential cables permanently attached while allowing the remaining connectors to be added only as needed. This reduces cable clutter inside the chassis and simplifies airflow management — particularly useful in compact mid-tower and smaller form-factor cases. The unit itself measures just 140mm in length, fitting comfortably in a wide range of PC cases. Cooling is handled by a 120mm low-noise fan tuned to a custom fan curve that keeps the unit silent during light to moderate usage scenarios, only spinning up under heavier sustained loads. Corsair backs this unit with a 7-year warranty, reflecting confidence in its long-term durability. Verified Specifications: - Model: CP-9020310-IN - Wattage: 650W - Series: CX-M - Certification: 80 Plus Bronze / Cybenetics Bronze - Standard: ATX 3.1 / PCIe 5.1 Ready - Modular: Semi-Modular - Fan: 120mm low-noise - Unit Length: 140mm - PCIe Connectors (6+2): 4 - SATA Connectors: 8 - Native 12V-2x6 Cable: Yes (up to 450W) - Capacitors: 105°C industrial-grade - Warranty: 7 Years