DTECH USB Male to Serial Female Cable for 3 wire serial communication (RX, TX, GND) Computers are shrinking its size daily which means less room for antiquated connections. With the rise of USB, DB9 Serial Connections have become even harder to come by on new computer systems. This is where USB to DB9 Serial Adapter comes in to play. By converting a USB Connection to a DB9 Serial Connection, with the USB serial adapter you can make use of older equipment that still relies on a DB9 Serial Connection so there is no need to worry about upgrading to newer equipment. The USB to RS-232 Serial Adapter provides an external plug & play RS-232 serial connection with your computer, letting you free up your existing serial port. With USB to serial 9 pin female converter, Users have the capability to utilize the adapter with serial port interface in an easy-to-use environment.Specific USB Interface: USB type A male RS-232 Serial Interface: DB9 female Cable Length: 6 Feet Chip: prolific PL2303 9 pin RS232 to usb adapter supports Windows 10, 8, 7, XP, Vista, 2000, 98, MacOS8 or higher, Linux 2.4.0 and later USB 2.0 standard, backward compatible Gold-plated InterfaceImportant Note: 1. The Serial (COM) Port of this Cable isFemale Interface, which fits for the Serial (COM) Device with 9-Pin Male Port. Please make sure the interface ofyour device is 9-Pin Male before making a purchase.2. If you can?t find the driver or have any installation issue, please contact us anytime and we will send you a driver of this USB to serial adapter.3.Serial to USB 2 converter pingout: Pin 2 - TxD, Pin 3 - RxD, Pin 5 - GND. (pin 1-5 row 1 right to left ,pin 6-9 row 2 right to left ). )Original Packing Included 1 x USB 2.0 to DB9 Female RS232 Converter cable (6ft) 1 x CD software driver