Providing a quick way to verify the functionality of CompactFlash host sockets, CFtest 220 CompactFlash tester can verify all data, address and control signals on the CompactFlash interface. Its on-board A/D converter accurately measures the socket's supply voltage, supporting 3.3V and 5V operation. Housed on a standard 3.3-mm CompactFlash card, CFtest 220 is self-contained. A developer's kit that supports software development for the CFtest 220. The CFtest developer's kit includes a CFtest unit along with technical documentation and sample source code. The source code can be used as a base for custom test programs.