A land grid array is a type of CPU socket, connected to the motherboard of a computer system. The socket is notable for having the pins on the socket itself, as opposed to on the CPU itself. Land grid array (abbreviated as LGA) sockets are commonly used to connect both Intel CPUs (starting with Pentium 4) and AMD Opteron CPUs to a motherboard. Motherboards using LGA sockets are shipped with socket covers, in order to prevent damage during shipping.