You can download Jay-Z's discography from various music streaming platforms, including:
A family affair with Beyoncé under the name The Carters. Jay Z Discography Download
For the mixtape era (1997-2002), the Internet Archive hosts public radio rips of his Streets Is Watching soundtrack and S. Carter mixtape. These are often low quality, but they are historically priceless. You can download Jay-Z's discography from various music
For those who prefer MP3 formats, Amazon offers the entire catalog for purchase and download, often at a slightly lower price point than lossless platforms. Essential Albums for Your Collection Jay Z Discography Download