Built around intelligent and proven MegaRAID technology, the MegaRAID SATA 150-4 is a half-size, four-port SATA RAID controller with support for RAID levels 0, 1, 5 and more. The MegaRAID SATA 150-4 also boasts a vast array of on-line and remote management features including on-line capacity expansion and RAID level migration to make GUI-based storage management quick and easy to use.