DB25 to RJ45 Modular Serial Adapter, RS-232, RS-422, RS-485 | Eaton
DB25 25 Pin D-Sub Plug Solder Connector RS232 Serial / Grey Hood / Female / Male | eBay
RS232 connector pin assignment
Rs232 Db9 D-sub 9 Pin Female To Db25 25pin Male Adapter Converter Serial Printer Cable For Epson Dot Matrix Printer Link To Pc - Pc Hardware Cables & Adapters - AliExpress
FTDI Chip Usb to RS232 25 Pin DB25 Male Connector Serial Adapter Cable CNC Controls Programming Cable Compatib C-232R US-232R: Amazon.co.uk: Computers & Accessories