Starter

Host One Website
2 GB Space
75 GB Transfer
5 Email(s)
Site backup & restore (paid option)

Advanced

Host One Website
10 GB Space
100 GB Transfer
25 Email(s)
Site backup & restore (paid option)

Business

Host Three Websites
20 GB Space
200 GB Transfer
50 Email(s)
Site backup & restore (paid option)

Pro

Host Ten Websites
50 GB Space
250 GB Transfer
100 Email(s)
Site backup & restore (paid option)

Plesk Windows Hosting - Business One Price:
Free