Indeed - its the same as Multiface-I. Nothing wrong with them, but age is starting to creep up there. Will gladly run under all OS's from Win2000 through W10.
I own two MF-I's and a Nuendo AudioLink (among tons of other RME gear!) and none of the breakout boxes themselves have experienced issues, but I've had two older HDSP PCI cards fail (+/- 10 years old). I still have a PCI HDSP that works though - so it's not like an older PCI card is sure to fail or anything like that. I'd personally steer clear of any older PCI cards (say v1.5 or so) - I believe hardware v1.8 was the most recent PCI revision.
I'd hold-out for a PCIe HDSPe card as the PCI cards are likely older and of questionable reliability by now. Not to mention current motherboard PCI compatibility is quickly vanishing! (and PCI support is 100% non-existant for Mac OSX on Intel - Even with Hackintosh!).
Estimated value for an aging AudioLink & PCMCIA card would be around $275-$375 USD on eBay (have seen some sell for as little as $250 or so). If it's an HDSP ExpressCard (and not a legacy HDSP PCMCIA card), then maybe add another $100 - and you can likely re-sell that card for $200 or so.
MADIface-XT+ARC / 3x HDSP MADI / ADI648
2x SSL Alphalink MADI AX
2x Multiface / 2x Digiface /2x ADI8