Some microcontroller manufacturers offer a free or low cost sublicense of their vendor ID for development/testing and limited production (generally under 10,000 units). Vendors offering this free service include: Dream S.A.S. Energy Micro FTDI Luminary Micro Microchip NXP Silicon Labs STMicroelectronics Texas Instruments Alternatively, many members of the open source community promote the use of USB VID 0xF055 (visually similar to FOSS) for open-source hardware projects. Although this VID is not registered to any company (as of October 2015), the USB-IF have not released any confirmation about reserving it for this particular purpose. See also MTP (Media Transfer Protocol) Personal Computer Memory Card International Association (PCMCIA) USB On-The-Go Wireless USB References External links Implementers Forum Organizations established in 1995 501(c)(6) nonprofit organizations