The iFlash-ATA1 is a board designed by Tarkan that allows for 1 SD Card to be used in place of the Hard Disk Drive used in the iPod (4th generation) , the iPod photo (4th Generation Color), and iPod (3rd generation).

Image of the iFlash ATA1
iFlash-ATA1 Compatibility
Can be inserted 1 SD Card
1 MicroSD card with adapter
Compatibility (iPod video & iPod classic) No.png Incompatible
Compatibility (iPod (4th generation)) Yes.png Fully natively compatible
Compatibility (iPod (3rd generation)) Yesblue.png Compatible, but may cause stress on the hard drive ribbon cable.
Compatibility (iPod (2nd generation) and earlier) No.png Incompatible.
Compatibility (iPod mini) No.png Incompatible.

Resources

Link to iFlash's Website page about the iFlash-ATA1: https://www.iflash.xyz/store/iflash-ata1/