10PCS RS232 DB9 Connector Serial VGA 9 Pin Female 2 Rows Solder Type Plug D SUB Male Plug Socket Connector|connector 2|connector maleconnector socket - AliExpress
SY1710/P9-S9, Waterproof Connector 9 pin plug sockets, IP68,aviation connector, car connector, high-voltage connect… | Plug socket, Aviation connector, High voltage
Serial cable, 9-pin extension cable (socket - plug)
2.54mm 0.1 Pitch 9-pin Jumper Cable - 20cm long : ID 4940 : $1.25 : Adafruit Industries, Unique & fun DIY electronics and kits