1、Serial protection, 10KV surge protection, USB interface power supply, no external power adapter 2、Strong compatibility, support a variety of operating system platforms, which makes the adapter very universal 3、Supported operating system platforms are for Windows 7/ 8 / 10 / Linux / OS X 10 4、Compatible with most GPS and PDA devices, modems, printers, scanners, digital cameras, and office equipment 5、Suitable for modems, printers, scanners, digital cameras or other office equipment Item Type: USB to RS232 Converter Material: ABS Color: Blue Chip: PL2303 Dual-Chip Usb Type: USB2.0 Rs232 Output Power: -5.7 to +5.7VDC Rs-232 Data Signal: TxD、RxD、RTS、CTS、DSR、DTR、DCD、RI、GND Porture Rate: 300bps to 1Mbps Scope of Application: Compatible with Most GPS and PDA Devices (Garmin and Palm). Also Suitable for Modems, Printers, Scanners, Digital Cameras or Other Office Equipment Support System: For Windows 7 / 8/  Windows 10 / Linux / OS X Operating System 10.X 1 x USB to RS232 Converter 1 x Drive Disc Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.