Alienware X51 (2015) review: Alienware's latest X51 gaming PC amps up with liquid cooling, latest Intel chip - CNET
Dell has discontinued the Alienware Graphics Amplifier, its external GPU - The Verge
Recently bought an Alienware Area 51. Sold my GTX 960 out of my Alienware X51 and I'm looking for a new GPU. What's the best graphic card I can put in a
Upgrading an Alienware X51 R2 GPU, Case and PSU | DELL Technologies
FOR Video-Expansion-Card Alienware X51 Graphics Pcie-X16 Dell FOR MS-4271 0NNGDM R2 P1050 - AliExpress