Feature:1.This adapter cable allows you to connect your GM 12 pin diagnostics port to a compatible16 pin OBD2 diagnostics scanner2.Compatible with GMs equipped with the 12 pin diagnostic port3.12 pin Male to 16 pin Female AdapterSpecification:Primary ColorBlackOverall Length410MM /16.14InchCable Length280MM / 11InchWeight110gFitments (For the reference):GM Chevrolet GMC(Compatible 16 pin OBD2 diagnostics scanner)Package Included:1 X Connector Adapter