TechPowerUp
http://www.techpowerup.com/reviews/Corsair/Obsidian_550D/6.html
Overclockers Club
http://www.overclockersclub.com/reviews/corsair_550d/6.htm
HardOCP
http://www.hardocp.com/article/2012/08/08/corsair_obsidian_series_550d_midtower_case_review/7
Guru 3D
http://www.guru3d.com/articles_pages/corsair_obsidian_550d_review,9.html
