Hi-Speed 36 Inch Black USB Serial Adapter, PC, MAC, supports Cisco Break Sequence Power Obtained from USB Cable No External Power Required Built-in static and surge protection up to 600W Baud rate: 300bps to 1Mbps OS Compatibility: Windows XP, 2003, CE, Vista, Windows 7, 8, 10, and 11 as well as Linux and Mac OS 10.X