You can still use it! I keep an old ThinkPad X61 & T400 around with mini-Firewire ports on my MOTU 828 mkII interface. It is also a DAC over SPDIF for my much newer Ryzen desktop. I would like to try Thunderbolt to FW800 to FW400 adapters to see if I can get it working on something more modern, as I learned it has mainline Linux kernel support.