Yup. Had a pair of them for a while. Downside is capacity. 4G (4x1G) of DDR1 RAM max. They also don't play nice in RAID-0 (trying to get it to 8G). Used a PCI slot. Older SATA spec.
That said - these RAM based SSDs are lightning fast, faster then my velociraptors. The ANS-9010/ANS-9010b take DDR2 RAM, have 6-8 slots (depending on version), one or two SATA-II ports, battery backup, and a CF card backup. Fast enough that the RAID card starts to become the bottle neck.