Feature: Type: Motherboard Internal Code Beep Speaker Buzzer Material: Plastic and Metal Color: Black Cable: Red + Black, approx. 6cm length Mainboard Connector Type: 2.54 pitch 4 Pin female header, plugs right into your motherboard where the speaker hooks up. Function: These are the speakers used to obtain beep codes from motherboards,alarm systems and other electronics. Keep your computer case internal cable tidy.