Parts Express 9 Pin Male Solder Type D-Sub Connector
Amazon.com: uxcell D-sub Connector Male Plug 9-pin 2-Row Port Terminal Breakout Solder Type for Mechanical Equipment CNC Computers Blue Pack of 1 : Electronics
9 pin mini-din male connector @ Pinouts.ru
USB 2.0 to Serial 9-Pin Cable Adapter - In Stock - Dresser Utility Distributor