24-Pin GPIB Male/Female to 24-Pin GPIB Male/Female, Stackable, Double-Shielded GPIB Cable—The 24M/F-24M/F X2 Cable, sometimes referred to as an X2 cable, connects your system to GPIB devices or interfaces for instrument control. This cable features 24-pin IEEE 488 male and female connectors, and the cable is double shielded with shielded plug/receptacles. Additionally, the 24M/F-24M/F X2 Cable is available in different lengths.