Buy HP Smart Array P212 Raid Controller for your server from Server Basket, which is compatible with 6Gbps SAS and 3Gbps SATA. The cache memory of the raid is 256MB protected ECC cache of 40 bits. Among all the models of raid controllers, you can get high data compatibility with this HP P212 RAID Card. The Pre-Failure Warranty feature involves not only reporting the administrator when a Hard drive is about to fail but supports the replacement of drives prior to its actual damage. This low profile half-height card holds 8 ports and uses DDR2-800 MHz memory.