Features 1、Suitable for serial devices such as barcode scanner, PLAM, PDA, label printer, POS system, LED system display, security access control system, etc. 2、Add a serial port to the system through USB connection. This serial port is compatible with new and old RS232 devices. 3、The USB plug-and-play feature makes the expansion of the serial port very easy, and it does not require IRQ, DMA, or I / O ports Resources. 4、Silver wire is more flexible than ordinary cable, not easy to break, durable, strong anti-interference ability than ordinary cable, stable transmission. 5、USB port to serial communication transmission speed up to 1Mbps. 6、Applicable System: for WIN98 / for SE / for ME / for 2000XP / for WIN7 / for WIN8 / for WIN10 / for VISTA, etc. Specification Item Type: USB 2.0 to RS232 Cable Cable Length: Approx. 1.5m / 4.9ft Compatible: USB2.0 interface Input Port: USB Output Port: 9-wire RS232 Cable: USB A connector Signal: for TxD, for RxD, for RTS, for CTS, for DSR, for DTR, for DCD, for RI GND Speed: 300 ~ 115.2K bps Supported operating systems ： for Win 95/98 / for ME / for NT / 2000 / for XP, for SCO, for UNIX505 for win7 Working Temperature: -20 ~ 70 ℃ Operating Humidity: 0 ~ 95% (non-condensing) Storage Temperature: -25 ℃ ~ 70 ℃ Application: Serial devices such as barcode scanner, PLAM, PDA, label printer, POS system, LED system display, security access control system, etc. Applicable System: for WIN98 / for SE / for ME / for 2000XP / for WIN7 / for WIN8 / for WIN10 / for VISTA, etc. Package List 1 x Serial Cable (male) 1 x Compact Disk