Hard drives.
Camaras.
Wifi antennas
Hi josepimentel375,
Welcome to Jetson & Embedded Systems developer forum.
Yes, all items are possible, but depends on what kind of interface you want to connect.
You can refer to below wiki to get more info of peripherals and use cases:
[url]https://elinux.org/Jetson_TX2[/url]
Also can use search forum function to find relevant topics:
[url]https://devtalk.nvidia.com/search/more/sitecommentsearch/expansion%20TX2/[/url]
Cheers