GQ ADP-054 16 Bit EPROM 40/42 pin ZIF adapter V3 for Willem For Standard/Enhanced Willem and GQ-2X,GQ-3X,GQ-4X True-USB EPROM programmer. It has on board both DIP40 and DIP42 ZIF sockets and 2 PLCC44 sockets on board. So that be able to support both DIP and PLCC package 16 bit EPROMs easily.