Ubuntu MATE preloaded on Raspberry Pi 2/3 SHIPPED FROM US Ubuntu MATE preloaded on SanDisk 16 GB Class 4 MicroSD Card Ubuntu is the most widely used linux operating system which is better than the original OS for Raspberry Pi. This Ubuntu MATE is specifically designed and optimized for Raspberry Pi 2/3 This features an easyto use GUI, pre-included many popular apps such as firefox, minecraft pi, scratch and VLC media player, and can install new apps very easily with apt-get. Instead of the normal preloaded image with 4 GB, ours is resized to 16 GB.