Power Supply Unit Seasonic SRP-CGX751-A5A32SF 750 W

The Seasonic SRP-CGX751-A5A32SF is a 750 W ATX power supply unit designed for desktop PCs. It complies with ATX 3.1 and PCIe 5.1 standards, offers 80 PLUS Gold efficiency, and features a fully modular cable system with black braided cables. The unit includes a 120 mm Hydro Dynamic Bearing fan and a wide AC input range of 100–240 V for compatibility with different power grids. Seasonic’s improved OptiSink PCB layout and automated SMD production reduce human errors and enhance cooling by optimizing component placement and airflow, and the product is covered by a 7-year manufacturer warranty.

Advantages

This power supply combines high efficiency and reliable performance through its 80 PLUS Gold certification and fully modular design, which reduces cable clutter and simplifies system assembly. The redesigned PCB and smaller MOSFET and heatsink components increase internal airflow and heat dissipation, while the Hydro Dynamic Bearing fan with Smart and Silent Fan Control balances cooling and low noise. The use of SMD technology minimizes line resistance and voltage drop, contributing to stable output and longer component life.

Suitable for

• Gaming PCs with mid-to-high power requirements
• Workstations and content-creation rigs
• Custom builds where modular cabling and tidy cable management are desired
• Systems requiring ATX 3.1 and PCIe 5.1 compatibility

Key specifications

• Total power: 750 W
• Certification: 80 PLUS Gold
• Form factor: ATX (ATX 3.1 compliant)
• AC input: 100–240 V, 50/60 Hz
• Cooling: 120 mm Hydro Dynamic Bearing fan with Smart and Silent Fan Control
• Cabling: Fully modular with black braided cables
• Color: Black
• Manufacturer warranty: 7 years

How to use

Install the PSU into a compatible ATX case following the motherboard and case manufacturer instructions. Connect the fully modular cables only to the PSU ports required by your system—attach the 24-pin ATX, CPU power, PCIe, SATA and peripheral connectors as needed. Ensure proper airflow inside the case by routing cables to avoid blocking intake and exhaust paths. Use the unit with an appropriate mains voltage within 100–240 V and switch off mains power before connecting or disconnecting cables.

Recommendations

For reliable operation, verify that your system’s peak and continuous power demands remain within the 750 W rating. Keep the airflow path unobstructed and perform periodic dust removal from the fan and vents. Use high-quality compatible cables and connectors, and consult Seasonic’s documentation for detailed installation and safety information.