...
If you are downloading files from the web, you can either download single files at once, or you can add multiple files to a download cart, which is similar to an online shopping cart. There is a catch with downloading from the web—the maximum size of a download is 5 GB, or a maximum of 100 files if using the download cart.
For instructions on downloading from the web, see Downloading Data From the Synapse UI.
For instructions on downloading larger files in greater numbers using one of our programmatic clients, see Downloading Data Programmatically.
...
To gain access, contact the project owner or click Request Access.
To learn more about data access, see Data Access Types.
Downloading Data
Next, learn how to download data from the Synapse UI or programmatically.
...