ZIDEFS Acorn A3000/3010/3020/4000 IDE Interface / Mini-Podule with 2GB CF Card and IDE-CF Adaptor. The IDE connectors have pin 1 marked to assist orientation. IDE Interface mini-podule (ZIDEFS) suitable for A3000/A3010/A3020/A4000 - provides a 44pin connection for rotating drives, Compact Flash card or SD card (CF & SD cards require suitable adaptor/interface).