I didn't do a ton of testing with it, and I've had a really hard time finding any spec sheets for it. The drive model is Z16IZD2B-200UC-HIT-A and part number is SDT5A-S200SS. It has the plain white label with black lettering, instead of the blue banner label that's on a lot of the STEC/HGST stuff, including other ZeusIOPS drives. I'd pick up a matching one and run a small ZFS mirror for root or something, but the lowest prices I've found on eBay make it not worth it to me.
IIRC the highest I saw from testing with dd a few months ago was under 200MB/s.