Intel H57 is a more "complete" version of the Intel H55 chipset, supporting RAID, 14 USB 2.0 ports (against 12 on H55), and eight PCI Express 2.0 x1 lanes (against six on H55). H57H-MUS from ECS comes with two PCI Express x1 expansion cards to add USB 3.0 ports and SATA-600 (a.k.a. SATA 6G) ports on the motherboard. Let's what you should expect from this product.