I've come across what appears to be a vintage PCI card for the Macintosh. I've searched everywhere to find out what it is, but so far it's been unsuccessful. It has what appears to be memory sims and at least two FPGAs, but has no external ports, making it unlikely to be a conventional graphics card. It's labeled as PowerShop Mezzanine and possibly made by Adaptive Solutions. The board was copyright back in 1995, placing it around the PPC era of Macintosh machines. Any information on this board?

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  • No answer as yet - data on some components - Xilinx - datasheetspdf.com/datasheet/XC4006.html PLX 9060 - farnell.com/datasheets/390078.pdf PNY are a graphics card company (they make the founder's edition NVidia cards)
    – Tetsujin
    Dec 29, 2020 at 18:53
  • Can you unmount that mezzanine daughtercard & see what's under?
    – Tetsujin
    Dec 29, 2020 at 19:10
  • Nice find! I wonder if the drivers are available anywhere still... If you are in need of someone with a collection of PCI PowerMacs and a strong interest in vintage hardware to pawn old junk like this off on, hit me up. ;-)
    – Cody Gray
    Dec 30, 2020 at 10:34

1 Answer 1


Got it!

It's a Photoshop accelerator card.

Google books came up with this announcement from Computerworld magazine.
Screenshot from there -

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  • 1
    $3000....! Shame tech doesn't hold its value.
    – benwiggy
    Dec 29, 2020 at 19:56
  • 2
    Nice find. Wow. $3000 in 1995 dollars to speed up what by today's standards is a dreadfully simple version of PS (although I happily used PS 2.0 for many years, I must admit) to what I bet would still seem crawlingly slow compared to what we're used to. Amazing how far we've come.
    – John Smith
    Dec 30, 2020 at 6:08
  • 4
    It's a PCI card designed for the PowerPC based Macs. While PPC is slow, it's not quite as slow as older x86 or 68K. The performance might be incredibly fast considering the shear amount of hardware thrown at it. There are at least two FPGAs and probably other DSP chips in there. Of course, the rest of the machine is a major bottleneck. It would be interesting to see how it would perform on modern hardware, but that would be quite a task to figure put the interface for it.
    – ATL_DEV
    Dec 30, 2020 at 6:19
  • @ATL_DEV You could plug the card into an early Mac Pro but you couldn't run classic Mac OS on it. Maybe a PowerMac G4 or G5 if you really want to play with it. Dec 30, 2020 at 16:38
  • 1
    @chepner I do not really wish for a world where tech held its list price.
    – benwiggy
    Dec 31, 2020 at 9:59

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