Specification: Audio Port: 1 Microphone Port: 1 USB Port: 2 Length: 1.55m / 61.0inch Size: 6 x 6 x 3cm / 2.36 x 2.36 x 1.18inch Package Weight: 170g Quantity: 1pc Package included: 1 x Desktop PC Switch Problem: 1.The audio port does not work. How should it be operated? 2.Why isnt there any input? Solution: 1.Check the plug and whether the cable of the port is inserted properly. 2.Because the pin was not inserted correctly. - COMPUTER POWER SWITCH: You can extend the computer power switch to the desktop. This desktop computer case switch can replace the computer case switch - MULTI-FUNCTION INTERFACE: This computer power switch has an audio interface and a microphone interface. It has complete functions and can be used in Internet cafes, homes, companies, etc - 1.55M CABLE LENGTH: This desktop computer power switch has a cable length of 1.55m, which is enough for your use and has a very high practicability - USB 2.0 INTERFACE: Desktop computer switch , with two USB 2.0 interfaces, it is very convenient to use - QUALITY ASSURANCE: We have very strict control over the quality of our products, and we are committed to letting you have a satisfactory shopping experience. If you have any questions, please us in time