Features 1、The IDE interface is a 40pin female connector: this card can be directly inserted into the IDE socket 2、CF card holder can be placed flexibly: single‑sided or double‑sided CF can be selected at will. 5.0V or 3.3V power supply 3、3 LED indicators: power (power LED), CF access (active LEd), whether the card is inserted (card detect LED) 4、Master/slave jumper: The front and back CF cards can be configured as master or slave 5、Use the CF card as a DOM: automatically supply power from the IDE's 20‑pin or external floppy drive power socket Specification Item Type: Converter Module Material: PCB Interface: 40 Pins Compliance with Standards: CF Specification Ver2.0, IDE/ATA-33 Specification Standard IDE Interface Interface: True-IDE Mode, and Supports DMA-33 Transfer Mode Support CF-I and CF-II Two Types of Cards: Also Support for IBM Micro Hard Disk with CF-II Interface Package List 1 x Converter Module