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usb to db25 cable
DT-5055 usb to db25 cable is connect your printer, modem or other RS-232 serial/parallel device to a switchbox
USB to DB9 and DB25 Adapter
DT-5018 USB to Serial (DB9) and DB25 Cable is your fast solution to utilize the peripheral with serial port and DB25 port  in an easy-to-use environment such as plug-n-play and hot swap function.