HighPoint"s RocketU 1144BM: 2nd Generation PCI-E 2.0 x4 USB 3.0 HBA designed for Apple Mac Pro"s and Mac OS X. RocketU 1144BM 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. The RocketU 1144BM is optimized for todays fastest USB 3.0 HDD and SSD"s, storage docks, and enclosures.