![Alienware Desktop PC X51 R2 AX51R2-2864BK Intel Core i5 4460 (3.20GHz) 8GB DDR3 1TB HDD NVIDIA GeForce GTX 750 Ti 2 GB Windows 8.1 64-Bit - Newegg.com Alienware Desktop PC X51 R2 AX51R2-2864BK Intel Core i5 4460 (3.20GHz) 8GB DDR3 1TB HDD NVIDIA GeForce GTX 750 Ti 2 GB Windows 8.1 64-Bit - Newegg.com](https://c1.neweggimages.com/ProductImage/83-156-785-01.jpg)
Alienware Desktop PC X51 R2 AX51R2-2864BK Intel Core i5 4460 (3.20GHz) 8GB DDR3 1TB HDD NVIDIA GeForce GTX 750 Ti 2 GB Windows 8.1 64-Bit - Newegg.com
![Desktop Computer Alienware X51 R3 AX51R3-3011BLK Intel Core i7 6700 (3.4 GHz) 8 GB DDR4 1 TB HDD NVIDIA GeForce GTX 745 4 GB GDDR3 Windows 10 Home 64-Bit - Newegg.com Desktop Computer Alienware X51 R3 AX51R3-3011BLK Intel Core i7 6700 (3.4 GHz) 8 GB DDR4 1 TB HDD NVIDIA GeForce GTX 745 4 GB GDDR3 Windows 10 Home 64-Bit - Newegg.com](https://c1.neweggimages.com/ProductImage/83-159-498-07.jpg)
Desktop Computer Alienware X51 R3 AX51R3-3011BLK Intel Core i7 6700 (3.4 GHz) 8 GB DDR4 1 TB HDD NVIDIA GeForce GTX 745 4 GB GDDR3 Windows 10 Home 64-Bit - Newegg.com
![Modded an old alienware X51 mini-PC from powering off of an AC adapter to a real power supply so I could upgrade the graphics card : r/pcmasterrace Modded an old alienware X51 mini-PC from powering off of an AC adapter to a real power supply so I could upgrade the graphics card : r/pcmasterrace](https://i.imgur.com/K8Rj83K.jpg)