Chieftec Polaris power supply unit 650 W 20+4 pin ATX PS/2 Black

The Chieftec Polaris 650 W power supply unit is a compact, fully modular ATX PSU delivering 650 W of total power with an 80 PLUS Gold efficiency rating. It uses LLC half-bridge conversion with DC-to-DC technology and a high power-density design to provide reliable, efficient power in a housing just 140 mm long. The unit includes a 20+4 pin ATX motherboard connector, a 120 mm cooling fan and comes in black, meeting RoHS environmental standards.

Advantages

The Polaris Series combines high efficiency and compact dimensions: 80 PLUS Gold certification ensures reduced energy loss, while the 140 mm length and fully modular cabling simplify installation and improve airflow inside the case. Built with modern LLC half-bridge and DC-to-DC circuitry, the PSU delivers stable voltages and higher power output per volume. Cable lengths up to 650 mm allow flexible routing in larger builds.

Suitable for

• Mid‑range and high‑efficiency desktop PC builds
• Compact ATX systems where a shorter PSU is required
• Custom builds that benefit from fully modular cable management
• Systems requiring a reliable 650 W power source with stable rails

Key specifications

• Total power: 650 W
• Motherboard connector: 20+4 pin ATX
• 80 PLUS certification: 80 PLUS Gold
• Fan diameter: 120 mm
• PSU length: 140 mm
• Weight: 2.175 kg
• Product colour: Black
• AC input: 100–240 V, 50–60 Hz

How to use

Install the Chieftec Polaris 650 W into a standard ATX PSU bay, secure it with the mounting screws, and attach the required modular cables to the motherboard, storage and peripherals. Connect the AC mains cable to a properly grounded outlet rated for the system. Ensure connectors are fully seated and cable routing does not obstruct fans or airflow. Power on the system and verify stable operation under load.

Recommendations

Use the included modular cables appropriate to your components and maintain adequate case ventilation. For reliable operation, match the PSU capacity to your system’s peak power draw and follow anti‑static precautions while installing.