SDI Full
This version is ideal if you want to be able to use the tool on the go without any Internet connection.
You need to use a torrent client to download the whole package for offline use.
Source  Size  Version  
Download
Torrent  10.7 GB  R533

SDI Lite
This version is ideal if your Internet is slow or you don't plan on using the tool to install/update drivers very often.
You need to download indexes via the app in order to scan your hardware.