Cooler Master Elite V3 400W Power Supply

The Cooler Master MPW-4001-ACAAN1 is a 400 W ATX power supply that brings stable power delivery and straightforward installation to everyday PC builds. It supplies the full 400 W through a single +12 V rail, giving entry level graphics cards and modern processors the steady current they need to run without random shutdowns or voltage drops.

This model reaches 75 percent efficiency, so less power is wasted as heat and your energy bill stays reasonable. It keeps working in ambient temperatures up to 104 °F (40 °C), an advantage if your system sits in a warm room or a case with limited airflow. A 120 mm fan with intelligent speed control moves enough air to cool the internal components while keeping noise at a level that fades into the background.

All cables come permanently attached and sleeved, which removes the guesswork for first time builders and speeds up the process for veterans. Six SATA connectors handle multiple SSDs and hard drives, the PCIe connector supports a dedicated graphics card, and additional peripheral plugs cover fans or legacy hardware. Built in over-voltage and short-circuit protection guard the system against electrical faults, adding a layer of safety you can trust.

Because of its compact ATX footprint, the Elite V3 slides easily into most standard mid tower and mini tower cases. Whether you are refreshing an older family computer, outfitting an office workstation, or assembling your first gaming rig on a budget, this power supply offers a dependable foundation without unnecessary extras.

• 400 W continuous output delivered on a single +12 V rail
• 75 percent efficiency helps reduce wasted energy and heat
• Operates safely in ambient temperatures up to 104 °F (40 °C)
• Non-modular layout with pre-attached, fully sleeved cables for quick installation
• Six SATA connectors, one PCIe connector, and multiple peripheral outputs
• 120 mm fan uses smart control to balance cooling and noise
• Built in over-voltage and short-circuit protection for system safety
• Compact ATX form factor fits most standard PC cases