Extend serial port

137 extend serial port products are offered for sale by suppliers on Alibaba.com, of which video splitters & converters accounts for 4%, usb hubs accounts for 1%, and other audio & video accessories accounts for 1%. A wide variety of extend serial port options are available to you, such as rj45, hdtv.You can also choose from laptop, house extend serial port,as well as from black, blue, and white extend serial port, and whether extend serial port is metal, plastic, or aluminum alloy.