How do you connect a CD-ROM directly to an electric socket?

To do this, you need a power adapter (a computer power supply will work great for this). The Drive will have a molex connector on the back for +12 VDC, ground, ground, +5 VDC. Connect a molex connector to that drive with the proper voltages, and the drive should power on. However, it won't be much good without connecting it to a computer motherboard, or drive controller.