Is there an alternative way to download the Bootcamp Windows Support Software?

Downloading from Bootcamp Assistant is painfully slow, and I have gigabit internet with 900 Mb/s download speeds. I have seen links to older versions of the Bootcamp Support Software, but I would like version 6136 (and access to newer versions as they are posted. Without these drivers, my keyboard and mouse aren't functioning, limiting the usefulness of Bootcamp.

I know this package of drivers are huge at ~3GB. I'm fine with waiting as long as 15-20 minutes for such a large file. But holy moly, this is ssslllloooowwww.