There are six different GPIB cables which are made by Keysight. You can see what each of these GPIB cable assemblies are capable of. You will need to find a seller online who sells these to the public such as RS Components which normally also host the Keysight IO libraries. If you are looking for a Keysight 82357B USB to GPIB interface converter then you can also find these where they stock the cables.
The Keysight 82357B USB/GPIB interface converter is and excellent choice for connecting a USB port to a GPIB device. The interface converter made by RS Components has parallel polling capability with a maximum GPIB transfer rate of 1.15 MB/s. The converter also uses the standard USB and IEEE-488 interfaces. The converter is every easy to use and is a high quality product from RS.