Welcome to my small store, where you can find unique products and high-quality services, providing you with a better service experienceUSB RS232 Serial to DB9 Female Adapter Converter Chipset Null Modem Cable 6ft length support win7/8/10/xp/android/M etcNull modem pinout(laptop pc with usb communicate with destop pc(with DB9 com port)):2-TXD(yellow), 3-RXD(orange),5-GND(GND), 7-CTS(green),8-RTS(brown), 1/4/6/9-NCUSB to Null Modem serial adapter corrects DTE/DCE conflicts without requiring additional adapters or cables The chipset is highly customizable and broadly compatible, making it the ideal solution Compatible With any setup Portable USB-Powered design requires no bulky power adapter or outlet USB to Null Modem (Cross-Wired) RS232 Serial Adapter Integrated USB UART Chip Baud Rate up to 921.6Kbps COM Port assignments maintained across reboot USB-powered - no external power adapter required USB to Null Modem Serial Adapter Cable (1-Port) converts an available USB 1.1 or 2.0 port into an RS232 Null Modem serial DB9 port, solving DCE/DTE conflicts directly, without requiring additional cross-wired serial cables or adapters. USB to Null Modem (Cross-Wired) RS232 Serial Adapte USB2.0 RS232 to DB9 female cable FT232RL+ZT213 chip USB2.0 standard, full speed Baud Rate up to 921.6Kb Null modem pinout(laptop pc with usb communicate with destop pc(with DB9 com port)): 2-TXD(yellow), 3-RXD(orange),5-GND(GND), 7-CTS(green),8-RTS(brown), 1/4/6/9-NC Driverdownload : .ftdichip Standard DB9 COM port pinout: pc(host) with usb to RS232 terminal device(slave) 2- RXD(yellow), 3-TXD(orange),5-GND(GND), 7-RTS(green),8-CTS(brown), 1/4/6/9-NC USB to female serial port cable allows you to connects a PC without serial port to a serial device because it adds a 9 pin DB9 port to laptop or desktop via USB port Portable USB-Powered design requires no bulky power adapt