The CPCI340 is used to add a CompactFlash card slot to any 3U CompactPCI System.
CompactFlash is a small form factor card standard that encompasses CompactFlash (CF) flash data storage cards, magnetic disk cards and I/O cards. The CPCI340 supports all of these types CompactFlash cards. The CPCI340 has one card interface slot which supports type I and type II CompactFlash (CF) as well as CF+ cards. Furthermore the CompactFlash card slot on the CPCI340 supports hotswap and low voltage cards.
This CompactPCI card has a 3U form

Features
> CompactFlash(CF) and CompactFlash+ (CF+) compatible
> Type I and type II card compatible
> Microdrive ™ compatible
> Low voltage support, 3.3V or 5V cards
> Hot socketing for CompactFlash cards
> Card accessible through frontpanel
> Host controller configurable for memory mode or I/O mode
> Two individually configurable windows for accessing the CompactFlash card
> 3U form factor
> Host interrupts supported