I think the only difference between a Mac-series SSD and a PC one is that
technical support may not automatically just hang-up on you if you're using a
Mac operating system rather than Windows.
That's possible. There was a time when modems had wording on the box
about how they could be used with Macs or IBM PCs, it wasn't about a
technical issue, just a way to make it easy for the non-technical to see
it would work with their computer.
There was a time when the Mac required special disk drives. I'm not even
sure if it was something important, or just that the Mac software looked
for something to indicate a "Mac drive" before it would work.
On the other hand, in that same time period, "IBM PCs" required RAM that
had an extra bit per every 8bits for parity checking. Except for a couple
of top end Macs, they didn't need the parity bits. But you tended to see
RAM specifically for the Mac, I seem to recall at a premium price. The
"secret" was that RAM with the parity bit would run fine in a Mac, it just
never noticed there was a parity bit. So anyone could buy RAM for the IBM
PC and use it in the Mac, probably cheaper since there was more demand for
it. It "cost extra" to leave off the parity bit.
So "Mac COmpatible" may mean nothing, just a selling point which likely
carries a premium price, or there may be something significant, but one
has to actually look to figure that out.
Michael