LGA 1366, also known as Socket B, is an Intel CPU socket. This socket supersedes Intel's LGA 775 in the high-end and performance desktop segments. It also replaces the server-oriented LGA 771 in the entry level and is superseded itself by LGA 2011. This socket has 1,366 protruding pins which touch contact points on the underside of the processor (CPU) and accesses up to three channels of DDR3 memory via the processor's internal memory controller.