The "32-bit" in the description has to be incorrect, as no 32-bit Windows OS is even supported on the R720.  The Support Site is going through some growing pains right now - this is probably just another glitch.
I've used the SUU for many years on various Dell servers and have always like it for keeping them up to date. I'm now working with a couple of new PE R720's but when I searched the Drivers & Downloads list, the only SUU listed is for 32-bit! So how can I keep the firmware and drivers updated without an SUU to run? This is a small business, not a large corporation with an infrastructure set up to manage many servers. JL
SUU for R720