Socket 370 (also known as the PGA370 socket) is a common format of CPU socket first used by Intel for Pentium III and Celeron processors to replace the older Slot 1 CPU interface on personal computers. The "370" refers to the number of pin holes in the socket for CPU pins. Modern Socket 370 fittings are usually found on Mini-ITX motherboards and embedded systems.
Read more about Socket 370: Technical Specifications, Socket 370 Intel Processors Mechanical Load Limits, Socket 370 Intel Processors With IHS Mechanical Load Limits