First thing i did was upgraded the mem. to 32gig. (120.00ish)This baby is screaming and the ease of switching between programs likea big game of Civ5 for example is FAST!!only drawback and its really not for the price.. its a not too simple to add more than one 2.5"drives but not impossible.Updated 7/17/2020 the heat displacement within this unit is EXTREAMLY poor.  The person who engineered this is needs to finish pre-school.