I have the hard drive of an iPod classic 4th Generation 20GB (A1059) to this adapter together with the IDE to CompactFlash adapter "DELOCK Converter 1,8ZHDD / iPod> CF Card" and the SD card "SanDisk Extreme SDHC 32GB Class 10 replaced ".
Worked right away and easily. I had to restore the iPod only in iTunes.
The iPod now has 29.7 GB of free space has become significantly lighter and reacts (felt) also significantly faster.
The Spring Load-insertion of this adapter worked with my copy of the first time something hakelig. After repeated insertion and removal of the SD card has become the but given.