Corsair RM750M Watt

Overview

The Corsair RM750 is a 750W semi‑modular power supply designed for mainstream and performance desktop systems. It delivers 750 watts of continuous power (rated at 40°C) on a single +12V rail, carries an 80 PLUS Bronze efficiency rating (roughly mid‑80s% efficiency under typical loads) and uses a thermally‑controlled 120mm fan for low noise at light to moderate loads.

Technical details & real‑world performance

At 750W the CX750M can comfortably power a modern single‑GPU gaming PC or productivity rig. The single +12V rail supplies the bulk of the unit's output (750W ÷ 12V ≈ 62A), making it well suited for systems with a high‑performance CPU and one high‑end GPU (for example RTX 3070 / 3070 Ti class, or stock‑clock RTX 3080/RX 6800 setups depending on the rest of the system and overclocking). The 80 PLUS Bronze certification means you should expect about mid‑80s percent efficiency at typical loads, which reduces waste heat and lowers electricity draw compared with non‑certified units.

Build features & protections

The CX750M's semi‑modular cable design gives you the main 24‑pin and necessary CPU cables fixed, while PCIe, SATA and peripheral cables are modular to cut clutter and improve airflow. It includes essential protections (OVP, UVP, OCP, OPP, SCP) and active power factor correction (PFC) for cleaner power delivery and improved compatibility with modern motherboards and GPUs. The fan is thermally controlled so it runs quietly at idle and only ramps up under sustained heavy load.

Specs summary

• Wattage: 750W continuous output (rated at 40°C)
• Efficiency: 80 PLUS Bronze (mid‑80s% efficiency at typical loads)
• Topology: Single +12V rail (~62A available on +12V)
• Cooling: Thermally‑controlled 120mm fan for low noise
• Cabling: Semi‑modular layout — fixed ATX/CPU, modular PCIe/SATA/peripheral cables
• Protections: OVP, UVP, OCP, OPP, SCP; Active PFC
• Form factor: ATX standard, suitable for most mid‑tower and full‑tower cases
• Warranty: Backed by Corsair multi‑year warranty (manufacturer warranty varies by region)

Who this is best suited for

The CX750M is ideal for budget‑conscious builders who want a reliable, quieter 750W semi‑modular PSU for a single‑GPU gaming PC, mid‑range workstation or a system with modest overclocking. Ideal for mid‑to‑high‑end single‑GPU gaming rigs, streamers and content creators needing stable power without the premium price of fully‑modular enthusiast units.