ML10v2: a virtual vSphere lab by HPE for less than 500€
HPE ProLiant ML10 v2 Tower Server – Intel® Xeon E3-1220 v3 Quad Core 3.1GHz 4GB RAM Non-hot Swap 3.5 HDD Bay No HDD No OS – 821786-P01 at TigerDirect.com
HP ProLiant ML10 v2 Tower Server System i3-4150 3.5 GHz 4 GB RAM - Newegg.com