Where to find the SHA256 checksum for downloaded products?

If you need to retrieve the downloaded file SHA 256 checksum to check the downloaded file, you can directly click here before you download the package: 

The SHA256 of the product will be copied and you can compare it against the one computed on your end.

You can refer to this AWS article to compute the checksum on your end: https://aws.amazon.com/getting-started/hands-on/amazon-s3-with-additional-checksums/?nc1=h_ls