Corsair RM1200x Shift Fully Modular ATX Power Supply – Modular Side Interface – ATX 3.0 & PCIe 5.0 Compliant – Zero RPM Fan Mode – 105°C-Rated Capacitors – 80 Plus Gold Efficiency – Black. Unleash the full potential of your gaming and high-performance computing systems with the Corsair RM1200x Shift Fully Modular ATX Power Supply. Engineered for enthusiasts and gamers alike, this power supply boasts a robust single fan cooling solution, ensuring quiet operation and reliability under load. The Corsair RM1200x model is designed with a modular side interface, allowing for a clean and organized build free from unnecessary cable clutter. Its ATX form factor is compatible with a wide range of cases, making it a versatile choice for your next PC upgrade or build. Item dimensions L x W x H. 7.09 x 5.91 x 5.08 inches. Fully Modular Micro-Fit PSU Connectors: CORSAIR Type 5 Gen 1 micro-fit PSU cables mean you only connect the cables your system needs while taking up less space. Intel ATX 3.0 Certified: Compliant with the ATX 3.0 power standard, supporting the PCIe Gen 5 platform and resisting transient power spikes. Zero RPM Fan Mode Support: At low and medium loads the cooling fan switches off entirely for near-silent operation. Modern Standby Compatible: Extremely fast wake-from-sleep times and better low-load efficiency.