Descriptions:
Product name: ATX power supply board
Compatible with the port: ATX (compatible with partial BTX type)
The PIN number: 24 pin
Switch: Yes
Number of sets of output: Four sets of different voltages
Board Size: 128x48x30 mm/5.04"x1.89"x1.18" (L*W*H)

Feature:
1. With power output indicator.
2. With module switch to turn off output.
3. The output terminal can pass the maximum current.
4. With output protection fuse,four groups correspond to four road output.
5.24 pins ATX computer power sockets, compatible with 20 pins plug

Note:
There is a -12V,a +12V,a 5V,a 3.3V terminal.
Each output take a 5A fuse. Overcurrent ,fuse can be replaced by yourself.
Each power rail has a corresponding ground connection; all of the power rails are brought out to a binding post.

About the 24pin port:
The 24pin port powers the computer motherboard in the host computer. Usually, this port is used together.