i was originally using a dell R710 but found it to be very limited being only a 2U, i was gonna make a JBOD for it to put my disks in, but instead upgraded my main rig and put all its old components in a 4U to set this server up. its been going strong for months now and i love it. iv got all the PCI lanes populated with network cards and wanted to swap the GPU out with a 10gbe SFP+ card to get fast storage access to my other 2 servers i have deployed atm. (would make more sense to buy a 10gbe switch, but i have a stack of SFP+ cards already on hand and can just have them run on their own net) when i get more money down the road it will be rebuilt more properly, as it stands its only running services for me and friends so if it goes down yea it sucks, but its not super mission critical.