One end is PCMCIA connector and the other end is 3.5" 40-pin IDE connector
It is an adaptor for connecting a PCMCIA card to a 3.5" IDE HDD
Read and write to PCMCIA hard drive, ATA Flash
Read and write to CF-I, CF-II, Smart Media, Memory Stick, Micro Drive, Multimedia Card, Secure Digital
Card using optional Flash adapter, XD with optional XD PCMCIA adapter
Up to 16 MB/sec data transfer (depending on the type of media) with IDE
4 pin power connector
No driver/software required
Easy to install