When we tested the ASUS P55 and GIGABYTE P55 boards with USB 3.0 and SATA 6G, we found some interesting numbers when using the GIGABYTE P55A-UD4P in RAID 0. For the most part we didn’t see much of an improvement when going from a single to a dual drive configuration with RAID 0. GIGABYTE also noticed the same issue and quickly went to work with Marvell to find a solution.