seven
A pico BTX is 10.5"x8" and only supports one or two expansions slots, designed for half-height or riser-card applications. A microBTX is 10.4"x10.5" (264x267mm) and it supports up to four expansion slots.
Item. - Mr Sparks
The three versions are; Micro, Nano and Pico
Pico BTX
Three
Three
BTX
BTX
micro btx motherboards also called uBTX is an advanced an better form of motherboard than micro atx motherboards and it is manufactured by Intel and b stands for better.
BTX
ATX
On an ATX motherboard, the CPU will be placed above and parallel to the expansion slots, towards the top of the case. On an AT or Baby AT motherboard, the CPU will be placed in front of the expansion slots, towards the front of the case.