This is a 28-SOIC programming adapter which accepts 300-mil wide SOIC packages with up to 28 leads. It is a generic adapter (wired one-to-one) and is used mostly for programming of 8, 18, 20 and 28-lead microcontrollers Microchip, Motrorola, National, Philips, etc., and 20, 24 and 28--lead PALs.It has a Hinge-lid socket and is considered to be the most popular and the most versatile of SOIC programming adapters with hinge-lid socket. It plugs into ZIF DIP socket on a programmer.