If the SD -> IDE Adapter does not work on any Pre OSX Mac, then what good are they for those machines?
But I know that CF -> IDE does work for anything with an IDE Interface on a Mac PowerBook - From the 190/5300/2300c to the Wallstreet/Pismo G3s, and even the 180PB (or is it the PB150 that has the IDE Interface?) all work with the CF -> IDE Adapter. And those machines with PCMCIA, the CF -> PCMCIA also work as a bootable drive. PCMCIA Flash Memory cards also work as a bootable Drive. The only drawback is the Powerbook 520/540/550 PCMCIA Adapter does not work as a bootable drive but does as a storage drive. These 500s series Powerbook also work with the CF -> IDE Adapter if they have the IDE interface in them.
Here is my 1400 booting from a CF on a CF -> !DE Adapter.
https://68kmla.org/forums/index.php?/topic/23406-booting-from-a-compact-flash-drive/?p=244873
You can get these CF -> IDE adapters from ebay for $3 or so. More details on how is on that forum thread. IDE SSD also work but not all, I know KingSpec SSDs do work on the older Macs. And like I stated above, the CF -> PCMCIA adapters also work but this adapter is more expensive on ebay, about $10 a piece.
But I know that CF -> IDE does work for anything with an IDE Interface on a Mac PowerBook - From the 190/5300/2300c to the Wallstreet/Pismo G3s, and even the 180PB (or is it the PB150 that has the IDE Interface?) all work with the CF -> IDE Adapter. And those machines with PCMCIA, the CF -> PCMCIA also work as a bootable drive. PCMCIA Flash Memory cards also work as a bootable Drive. The only drawback is the Powerbook 520/540/550 PCMCIA Adapter does not work as a bootable drive but does as a storage drive. These 500s series Powerbook also work with the CF -> IDE Adapter if they have the IDE interface in them.
Here is my 1400 booting from a CF on a CF -> !DE Adapter.
https://68kmla.org/forums/index.php?/topic/23406-booting-from-a-compact-flash-drive/?p=244873
You can get these CF -> IDE adapters from ebay for $3 or so. More details on how is on that forum thread. IDE SSD also work but not all, I know KingSpec SSDs do work on the older Macs. And like I stated above, the CF -> PCMCIA adapters also work but this adapter is more expensive on ebay, about $10 a piece.