The YL-J1900 6C2L 3.5 Inchs Motherboard Size is measured in a compact 102mmx148mm, created in an architecture of low power consumption, is equipped with Celeron® processor j1900, the low-power (TDP 10W) .it is featured with 3 sets of USB 2.0 pins , 6x USB ,5x COM pin sockets,1x SATA ,1x JSATA,1x SIM slot rich I/O, and supports various internet connections.