In XT motherboards, XT stands for “Extended Technology“. In 1983, the XT motherboard was developed by IBM Corporation. XT motherboard uses a traditional Logic Board for operations.The following are some of the features of the XT motherboard:It has 12 pins connectors for other componentsIt has RAM expansion slots ISA (Industry Standard Architecture) for memory.It includes DIMM slotsConsists of a processor along with LIF(Low Insertion Force)Instead of the existing one, if you want to use another port then you can install an Add-ON card, and insert it on the XT motherboard. It will avail extra functionalities of the XT motherboard.