The Alienware Area-51m is available in two versions - the R2 and R3. Both are highly upgradeable, however, the R3 version offers enhanced upgradability with access to additional components such as graphics cards and processors. The weight balance of the Area-51m has also been improved in the R3 version, delivering an increased level of mobility without sacrificing power or performance. Additionally, the R3 version features a redesigned cooling system that helps optimize temperature control while gaming or multitasking. This ensures users can get maximum performance out of their laptops for prolonged periods.