Summary
You want to know what is the default download speed limit in SSFE when it is not configured in a given Plan.
Details
Aside from setting the storage limit, an SSFE Plan can also define the upload and download speed limits that apply to specific users. By default, there is no value set for these limits. The download speed limit will depend on the version of SSFE server installed.
For SSFE 2.1 GM Build 1259 and lower, the default speed limit is at 500Kbps.
For SSFE 2.1 Patch 1 Build 1277 and higher, the default speed limit has increased to 2.5Mbps.
These limits can be overridden by specifying a different speed limit on a Plan and then assigning the Plan to users or groups.