The Secure Audio and Microphone Switch can be used to reduce security risks caused by the vulnerabilities of analog signals in a digital environment by reducing the number of exposed microphones that can be exploited by malicious software attacks; reducing security risks caused by user errors when multiple headsets/microphones are preset; eliminating the microphone-switching function from the KVM to isolate it from the USB and PS2 signals; incorporating an external microphone mute button to shut off the microphone when the Switch is not in use or while handling calls where the microphone is not required; preventing the system's mute switch from being manipulated by software or driver with a hardware mute switch. Device Type: Audio switch - 4 ports Subtype: Audio Ports: 4 x audio Power: AC 120/230 V Dimensions (WxDxH): 10.9 in x 3.4 in x 1.3 in Weight: 1.65 lbs Manufacturer Selling Program: Belkin B2B Manufacturer Warranty: 3 years warranty Bundled Services: 3 years warranty Device Type: Audio switch - 4 ports Enclosure Type: Desktop Subtype: Audio Ports: 4 x audio Status Indicators: Port status Interfaces: 4 x audio output - mini-jack 4 x microphone input - mini-jack 1 x microphone input - mini-jack 1 x audio output - mini-jack Power Device: External power adapter Voltage Required: AC 120/230 V Manufacturer Selling Program: Belkin B2B Width: 10.9 in Depth: 3.4 in Height: 1.3 in Weight: 1.65 lbs Service & Support: Limited warranty - 3 years Min Operating Temperature: 32 テつーF Max Operating Temperature: 104 テつーF Humidity Range Operating: 0 - 80% (non-condensing) Min Storage Temperature: -4 テつーF Max Storage Temperature: 140 テつーF