Socket-370 is a CPU socket utilized by some Celeron, Pentium III, and Via C3 processors.

The “370” in Socket-370 means that the socket has 370 contacts.

The socket-370 is a Pin Grid Array (PGA) Zero Insertion Force (ZIF) socket.

A ZIF socket features a lever on one side of the socket. When this lever is pulled up, the spring contacts inside the socket are opened. This allows the CPU to be inserted easily into the socket. The lever is then pushed down, closing the spring contacts and clamping the CPU into place.

The Socket-370 is no longer used in mainstream PC applications, but is still utilized in specialty low-power applications due to the use of the Via C3 CPU.

Socket 370