Hi darthnVader
Curious by nature I found it for you on eBay, US seller, under alternative search name.
I may be wrong but the ‘Sonnet Tempo ATA 133 PCI‘ version for the PC are called ‘Promise Ultra133 TX2’
According to our community and Sonnet the PC version should work with Mac when flashed:
>if anyone has experience modifying these cards for mac use please step forward<
"Not only that, I just got the green light from Sonnet.
No need to modify your card, only flash properly with the factory flash utility.
Would be nice to have it posted somewhere here, for everyone's benefit."
http://macos9lives.com/smforum/index.php?topic=5024.0
eBay sellers here:
https://www.ebay.com/sch/i.html?_nkw=Promise+Ultra133+TX2&_trksid=m5467.l1311
Best of luck
*Update, sry, like I said may be wrong. I read up on the post, the attempt got postponed April 25, 2020 not sure anyone got it to work.