2.5" SSD

2.5"

— one of the most popular form factors for internal SSDs. Initially, 2.5" drives were used in laptops, but nowadays the corresponding slots are also found in most desktop PCs. Anyway, modules of this form factor can be installed in different ways: some are mounted in separate slots similar to hard drives, others (under the U.2 interface, see "Connection connector") are inserted directly into the motherboard connectors.