Compact Flash Cards are expensive and to be able to use cheap sd card or micro sd through another cheapo sd to micro saves an absolute fortune.
If your device uses expensive CF Cards you need this.
Cheapest ever Amazon price.
Converts your high speed SD, SDHC, or MMC card to a Compact Flash Type II card. IMPORTANT NOTE: This is a CompactFlash Type II Adapter for use only with Type II enabled devices. CompactFlash Type II is thicker than standard CompactFlash (Type I) and is NOT backward compatible with standard CompactFlash enabled devices. Your device MUST be CF Type II compatible or this adapter will not fit. Please note this adapter will not accelerate the insterted card, it only converts the real speed of the card.
Support: SD, SDHC, MMC all capacities
SD 3.0 ready
Supports Windows / Mac OS / Linux
Supports CF true IDE mode / memory mode / IO mode
Interface: CF Type II