Monoprice Db9, M/f, Null Modem Mini Type, Used To Connect 2 Computers Or Other Devices For File Transfer : Target
3ft DB9 F/F Null Modem Cable
6ft (1.8m) DB9 F/F Serial RS232 Null Modem Cable - Beige | Serial RS232 | Computer Cables | USB and PC
Tripp Lite 18in USB to Null Modem Serial Adapter FTDI w/ COM Retention M/F 18" - serial adapter - USB - RS-232 - U209-18N-NULL - USB Adapters - CDW.com
DB9 M/F Mini Null Modem Adapter
StarTech.com 1m Black DB9 RS232 Serial Null Modem Cable F/F - SCNM9FF1MBK - Serial Cables - CDW.com
4g Usb Modem Fdd Tdd | Mbps 3g Usb Modem | F 4g Usb Modem | Modem Router | 4g Dongel - 4g Usb - Aliexpress