Build a USB-based GPIB controller | EDN Figure 1 This USB-based GPIB controller requires only four ICs. The design uses the FT245BM USB-controller IC from Future Technology Devices International Ltd, which features an 8-bit parallel connection to the host microcontroller and a virtual-communications port to the PC-interface side. The circuit operates at a full speed of 12 Mbps. GPIB-USB-HS - National Instruments USB, IEEE 488 GPIB Instrument Control Device—The GPIB‑USB‑HS is an IEEE 488 controller device for computers with USB slots GPIB‑USB‑HS achieves maximum IEEE 488.2 performance. With no GPIB cable required for instrument connection, you can use the Hi‑Speed USB port to control up to 14 programmable GPIB instruments.