This rare G3 upgrade card was recently plucked from a working Power Macintosh 7500/100.
Lowendmac describes the card as working for the following Macs: 7300, 7500, 7600, 8500, 8600, 9500, 9600. The card performs similarly to other manufacturers like Sonnet, MaxPower, XLR8 and PowerLogix.
Card comes with the required Metabox System extension.
Let me know if you have any questions.