I love using the Dell R815 as my vHosts for several reasons:
1. The airflow through the thing is phenomenal. redundant fans, the power supply package, the way the ram is stacked. it’s just laid out really well and really serviceable.
2. I get them with no spinning media. yep, just dual SD cards, and you’re good to go!
3. Dual Power supplies are a given!
4. Slots for extra network connectivity!
5. You can order them with a “half ram / half processor” configuration for expansion later!
6. The AMD processor, in my opinion is the best power wise processor on the market today.