Features: and CF card is a low-cost electronic disk card, which is widely used in notebook computers, personal digital assistants (PDAs) Boot up your computer using a Compact Flash card with this IDE adapter. Allowing you to access the flash/micro drive media as if it were an IDE hard drive. 39Pin/40-Pin standard male IDE connector, supports CF-I and CF-II types of cards: also supports for IBM micro-hard drives with CF-II interface.Standard IDE interface interface: true-IDE mode, and supports DMA-66 transfer mode. Additionally, this device offers the benefitof no acoustic noise, shock resistance, fast read access for time and low power consumption. The IDE interface is a 40-pin/2.54mm female connector: this card can be directly inserted into the IDE socket. With LED indicator: power (power LED), CF access (active LED), whether the card is inserted (card detect LED).Master/Slave jumper: can be configured as master or slave. Use CF card as DOM: automatically supply power from IDE's 20-pin or external floppy drive power socket. 5.0V or 3.3V power supply: choose the appropriate power supply voltage according to your CF cardCan be fixed on the for case by screw. Specifications: Item: CF to 3.5in IDE Desktop Expansion Card IDE Connector: 39Pin 40Pin Size: Mixed Note: Due to the light and screen difference, the item's color may be slightly different from the pictures. Please allow 0.5-2 for cm differences due to manual measurement. Package includes: 1 PC x CF to IDE Adapter with Bezel