I'm not entirely sure just how popular this method of downloading is, but my searching for how to do this is just yielding very little results... if any. To make things brief: I am currently in possession of three MP 4,1 towers, two of which are currently updated to the 5,1 firmware (the third will be updated very soon). Instead of bogging down my internet connection for 4+ hours when each machine downloads the freakin software update, I wondered if there would be a more efficient method for someone with multiple towers. I searched and browsed until I found this super helpful link: Install macOS Sierra on Mac [Direct Download] My only problem at the moment is I don't have a url for the latest 10.12.6 download(s), and I have had no luck finding the urls coming straight from Apple's servers. While I would enjoy getting the link for the latest download(s), I would prefer to be able to fetch these urls on my own. It would also be super helpful for installing anything else of a relatively large size from the MAS to install across multiple machines. When I tested the download speeds using Chrome + Folx with the url provided in the link above, the download time was roughly 1/3 of the MAS download time (4.77GB took just over 1 hour, which is maxing out my connection). Considering I have 3 towers, and a painfully slow download going the MAS route, I'm okay waiting a little while to see if I can manage a method to obtain the Apple server urls. If so, I'll save myself nearly half a day's worth of downloading. And for those who will say the estimated download time in MAS isn't the most accurate... you're correct... all previous downloads typically are a bit longer than it estimates. I can wait a little while to basically banish all internet traffic on my network for 4 hours at a time.... if I'm lucky. Not too sure how easy this is to do, or if it's something many people seem to know. Fingers crossed, because it will be a HUGE deal to me, and I have a feeling that there are other people out there who would benefit from this. Not really looking for alternative download methods, as I'd like to get my copies directly from Apple. I know of a few places to find alternative installations; but since these are not my personal daily use towers, and lesser-inclined family members will be using them, I'd rather keep the installations as squeaky clean as possible. If it were my own tower, I'd simply use a torrented copy. Thanks in advance!