How about G-SPEED eS PRO?
Info from their site:
“Four hot-swappable Hitachi Enterprise-class 7200 RPM, 3.5″ 3Gbit SATA drives each with up to 32MB cache”
“2-port, G-Tech PCIe x8 IOP RAID controller with 512MB RAM supports RAID levels 0, 1, 3, 5 and 6”
Peter Eriksson