ITEM NAME:12 Pin to 16 Pin OBD2 Female Interface Diagnostic Cable Adapter for GM Description: - Compatible with GM vehicles equipped with the 12 pin diagnostic port. - 12 pin Male to 16 pin Female Adapter. - Made of durable plastic, High Quality Construction. Package Included: 1 Piece OBD2 Adapter Cable.1 Piece OBD2 Adapter Cable. - Compatible with GM vehicles equipped with the 12 pin diagnostic port. - 12 pin Male to 16 pin Female Adapter.