This is a Switching Power Supply, model ATX450, designed for computer systems. It features a robust black metal enclosure with a gold-colored fan grill and multiple attached power cables for various components.

The power supply unit provides an AC Input of 200-240V at 47Hz-63Hz with a 3.0A current. Its DC output includes: +3.3V at 14A max (Orange), +5V at 13A max (Red), +12V1 at 15A max (Yellow), +12V2 at 14A max (Yellow), -12V at 0.3A max (Blue), and +5Vsb at 2A max (Purple). The combined +12V1 and +12V2 total load is 29A max, and the +5V and +3.3V total 95 Watts. It is rated for 350 Watts with a peak load capability of 450 Watts. Key features include a double ball-bearing fan and multiple protections such as OCP (Over Current Protection), OVP (Over Voltage Protection), UVP (Under Voltage Protection), SCP (Short Circuit Protection), and OPP (Over Power Protection). The unit is marked with FC, CE, and an 80 PLUS logo, indicating efficiency standards. It is manufactured in China.

This listing includes the ATX450 Switching Power Supply unit with all attached cables as pictured. The cables include a main 24-pin ATX connector, CPU 4+4-pin connector, multiple SATA power connectors, multiple 4-pin Molex connectors, and PCIe 6+2 pin connectors. The unit also features an integrated power switch and AC input socket.