(It's not USB to VGA monitor cable ) Male serial to USB cable (DB9 9 pin to USB A male) allows your PC to connect RS-232 serial devices and programs that communicate through COM portsRS232 USB to serial adapter with FTDI chip is designed for connecting serial devices such as DB9 equipped PC router GPS Programming machine barcode scanner label writer serial modem digital camera card reader palm PC and digital organizer etcUSB to RS232 cord for Windows 11 10 8.1 8 7 Mac OS 8 or higher Linux 2.4. 0 and later (9 wire pinout 1-9: DCD RXD TXD DTR GND DSR RTS CTS RI)FTDI USB to serial cable adapter is built with a high performance quality processor chip (FT232 Chipset) which makes it one of the most reliable com port to usb adapter on the market16ft long extension DB-9 serial port to USB converter is long enough to provide more placement choices for your RS232C devices to reach to a place needed