Yes, they are. I have a Firewire 800 reader and it was noticeably faster than the USB 2 readers I have used. Unfortunately, my Firewire 800 adapter doesn't work with 64 bit Windows 7 and I haven't seen any adapters that look all that promising. I've been assuming since I put together my PC last spring, which has a USB 3 port, that a USB 3 reader would be released soon. Now I'm scratching my head wondering why no one seems to make a decent Firewire 800 adapter or USB 3 card reader.