My home-brew Arduino OBD-II connection kit - Other Hardware Development - Arduino Forum
Freematics OBD-II UART Adapter V2.1 (for Arduino)
5set Sample Price Diy Male Shell Obd Obdii Obd2 16pin Connector With Screws Enclosure Plug Housing + Line Card - Diagnostic Tools - AliExpress
OBD2 16Pin to DB9 Serial Port Adapter Cable | Makerfabs
Amazon.com: UART Female DB9 Port to OBD2 OBDII 16PIN Cable fits USB to CAN Module of InnoMaker : Automotive
OBD II UART Hookup Guide - SparkFun Learn
OBD II Adapter 1 to 3, OBD2 16 Pin 1 Male to 3 Female Diagnostic Adapter Connector For Auto Repair or Car Inspection Institution - Hengye Cable Factory Store