This product is ideal for users who need to adapt their existing serial devices for universal use with USB-based interfaces without modification.
usangreen Pl2303TA USB RS232 to DB9 Cross Wired Rollover Null Modem Cable (Standard pinout: 2-RXD, 3-TXD, 5-GND, 7-RTS 8-CTS)
usangreen FTDI USB RS232 Serial COM port to RJ45 Male Console Cable Rollover Cable for Cisco Routers (6FT)
usangreen FTDI USB RS232 to DB25 Cable for Fanuc CNC Control Data Transfering Serial Cable Compatible C-232R US-232R (6ft/180cm)
usangreen FTDI USB RS232 to DB25 Cable for Fanuc CNC Control Data Transfering Serial Cable Compatible C-232R US-232R (16ft/500cm)
usangreen FTDI USB RS232 Serial COM port to RJ45 Male Console Cable Rollover Cable for Cisco Routers (12FT)
PL2303TA USB TTL to RS232 Converter Serial 80cm Cable 4 Pin for Win XP/7/8/10