The RocketU 1144CM is a PCI-E 2.0 x4 USB 3.0 HBA designed for Apple Mac Pro's and Mac OS X 10.8 Mountain Lion RocketU HBAs benefit from a 2 ounce (oz) copper PCB layer for robust transfer performance and improved energy efficiency. The four Dedicated 5Gb/s USB Ports deliver 20Gb/s of transfer bandwidth, and are optimized for todays fastest USB 3.0 HDD and SSD's, storage docks, and enclosures. Built-in RAID technology and an intuitive Web-based Management interface support a variety of storage configurations including RAID 0, 1 and JBOD.