Is there any difference in hardware support between ESX and ESXi ? I heard that ESX shuold support much more hardware than ESXi. Is that true ?
ESX 4.1 U1 [All (2957)] ESXi 4.1 Installable U1 [All (1699)]
ESX support more hardware than ESXi
You also can't use the (free) ESXi if you are going to resell services.
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