combinations. Area-51 Area-51 R1 (Discontinued) - This model is based on the Intel X58 platform (LGA 1366 socket). This model shares identical hardware with the Area 51 ALX. The Area-51 R1 is equipped with 1st Gen Intel Core i7 and i7 Extreme processors. In order of model number: 920, 930, 940, 950, 960, 975 (quad core), 980X, 990X (six core). The Area 51 used triple channel memory and had Graphics Card options from AMD Radeon HD 5000 Series, Radeon HD 6000 Series as well as Nvidia GeForce 400 Series and Nvidia GeForce 500 Series. Power Supply options included 1000W or 1100W. Power supply and motherboard supports both SLI and CrossFireX. The Area 51 was offered from the beginning alongside the Aurora R1, R2, R3 and the Aurora ALX (R1). It offered thermal-controlled active venting, tool-less hard drive bays, internal theater lighting and an array of external LEDs. Area-51 was offered in either semi-gloss black or lunar shadow (silver) finishes, with a non-motorized front push-panel. Command Center software and AlienFX features are offered via a discrete master I/O daughterboard. Area-51 ALX R1 (Discontinued) - Alienware's most expensive desktop to date ($5000$7000 US fully equipped), ALX offered every available option as the standard model (see above); ALX is distinguished from the standard model by its matte black anodized aluminium chassis, and motorized front panel powered by a dedicated ALX-specific master I/O daughterboard. Area-51 R2 (Discontinued) - unveiled late August 2014 - available October 2014; newly redesigned Triad chassis; Intel x99 Chipset, support for socket LGA 2011-3 Intel Haswell-E processors; 2133MHz DDR4 memory; up to 1500W power supply; support for 3-way/4-way SLI graphics; liquid cooling and the return of Command Center 4.0 with AlienFX/overclocking features via front I/O daughterboard. Area-51 R3 (Discontinued) - Area-51 R4 (Discontinued) - The fourth revision of the Area-51 was announced at E3 2017. The base model was released with an MSRP of US$1899.99 and adding all the extra hardware can cost the consumer up to US$6,659.99. The Area 51 R4 is based on the Intel X299 chipset and the processor options include Intel based; Core i7-7800X, Core i7-7820X, Core i9-7900X Core i9-7920X, Core i9-7960X and Core i9-7980XE. Memory options include 8GB, 16GB, 32GB or 64GB DDR4 2400MHz memory or 8GB, 16GB or 32GB of HyperX DDR4 2933MHz memory (64GB kits sold separately). The Area-51 R4 was configurable with Nvidia GeForce 10 series, AMD RX Vega series or AMD