This is a used Keithley KUSB-488B adapter, which provides a direct USB-to-GPIB connection for controlling IEEE-488.2 instruments from a computer. It is designed for engineers, technicians, or researchers who need to interface legacy test and measurement equipment, such as multimeters or power supplies, with modern systems lacking a native GPIB port. Free shipping is included. The adapter offers a practical solution for laboratory setups, automated test equipment (ATE) integration, or data acquisition tasks where GPIB connectivity is required. As this is a used item, check the listing for full details on its exact condition and compatibility. Keithley KUSB-488B IEEE-488.2 USB-to-GPIB Interface Adapter. Condition: Used. Listed at 395.00 USD. The KUSB-488B's small form factor makes it perfect for use with laptop computers in portable applications or for other applications in which the computer has no available PCI plug-in board slots. The product is USB 2.0 compliant and has an IEEE data transfer rate upwards of 1.5 MB/s through the USB port.