Wikipedia
FTDI
Future Technology Devices International, commonly known by its abbreviation FTDI, is a Scottish privately held semiconductor device company, specializing in Universal Serial Bus (USB) technology.
It develops, manufactures, and supports devices and their related software drivers for converting RS-232 or TTL serial transmissions to USB signals, in order to allow support for legacy devices with modern computers.
FTDI provides application-specific integrated circuit (ASIC) design services. They also provide consultancy services for product design, specifically in the realm of electronic devices.