Z77H2-A3 is ECS latest Mainstream product fully supports the Socket 1155 Intel 3rd & 2nd Generation K-sku desktop processors to deliver amazing overclocking capabilities. Z77H2-A3 features Intel Z77 chip by supporting DDR3 memory up to 2800(OC), using ECS eOC or Intel XTU to gain great performance. In addition, Z77H2-A3 features SATAIII and USB3.0 bringing users the faster experience. Proprietary ECS BIOS is tweaking through the M.I.B III Overclocking utility. ECS application kits including eOC, eSF, eBLU and eDLU also offers a convenient way to extract performance, save energy consumption and keep drivers and BIOS up-to-date. Z77H2-A3 is the best choice for your computing experience.