!!Please NOTE: this is MALE Type-C RS232 to DB9 SERIAL CABLE ,Not VGA!!!It is 9 pin, NOT 15 pin!! Look carefully of the Pin is match with your device. Before ordering , please confirm the interface gender is waht you need. After receiving ,please read user manual /instruction at first and download the Driver at first from FT232 Official website or Cisco website . Customer service always online. How it works: Use USB-C transfer rate up to 1Mbps to RS-232 converter to realize data transfer between PC or laptop with USB Type C port and RS-232 device, allows your PC or laptop to connect RS-232 serial devices and programs that communicate through COM ports. Connectors :USB Type C male, RS232 db9 male,USB Type C 2.0 male to USB DB9 male Chipset & Supported OS: FTDI-FT232RL Chipset for widest possible stablity and compatibility with Windows (10/8.1/8/7XP), Mac, Linux, etc. Support almost all serial COM port Plug and play: Powered by USB-C port, no external power adapter required. Simple installation, plug & play after one time driver installation. What you get: USB type C to Serial (9-Pin) DB-9 RS-232 Converter Cable is backed with 24-months worry-free and customer service support. The USB-C to DB9 serial cable is a universal USB/RS-232 converter, no external power supply, compatible with USB-C and RS-232 standards, capable of converting single-ended USB-C signals to RS-232 signals, and the converter has zero delay inside It can automatically send and receive conversion at the time, the unique I/O circuit automatically controls the direction of the data flow, plug and play. Ensure that it is suitable for all existing communication software and interface hardware. The interface converter can be point-to-point, and the data communication rate is 300-460800bps, and the supported communication methods are USB to RS-232 conversion. Application: attendance machine, switch, router, gateway, firewall, PLC, cash register, PLAM, CNC machine tool, disposal MODEM, ISON terminal, scanner, industrial control, industrial instrument, temperature control equipment, LED display, PDA tax control machine , Touch screen, printer, access control system, etc.