USB 1.1/2.0 compatible. ¡E 4 USB B-Type correspond to computers and 1 USB A-Type hook-up to USB device. ¡E No redundant power required. ¡E Sharing application facilitates easy and secured switch from one computer to another. ¡E Switching icon displayed on the task bar indicates the device status. ¡@ ¡@ Function Specification Model No. USBG241AB PC Port 4 USB Device Port 1 PC Port Connector USB Type B Receptacle USB Device Port Connector USB Type A Receptacle USB device selection Mouse , SELECT button or Hot Key command PC Port LED 4 Cable Length (PC to Device) 5 meters USB Power Bus Powered Power Adapter No Operation Temperature 0 ¢J~ 40 ¢J Storage Temperature -20 ¢J ~ 60 ¢J