When you go to the standard Google Chrome download page, you typically get a "stub" or "net" installer. This is a tiny file (around 2MB) that must stay connected to the internet to download the actual browser files during the installation process.
If you are setting up a computer with no internet, have a slow connection, or need to install Chrome on multiple machines without wasting bandwidth, you need the (also known as the standalone installer). How to Download the Chrome Offline Installer offline download google chrome
Google doesn't always make the standalone installer easy to find, but you can access it through these official methods: Download Google Chrome Offline Installer (64-bit, 32-bit) When you go to the standard Google Chrome