What is most impressive about the AV Pro is that it can not only accept regular 3.5” HDD’s, but also the much faster, more secure 2.5” SSD’s. When it comes to storage capacity, the AV Pro can store a huge amount of data for such a small device. With a regular 3.5” HDD installed the AV Pro can store up to 6TB of data, and with an SSD installed it will be available in capacities up to 2TB. More AV Pro information.