How Well does The Radeon R9 280X Fit Into The Coolermaster HAF X?

[Piercerson]

I'm close to getting Radeon R9 280X, it looks like it would fit, but I'd rather make sure with people who might have done it.

 

[Darkbreeze]

That's going to depend on the brand. Every, well, not every, but many, manufacturers have different length cards for any given GPU chipset. Reference models may be different than what MSI, Sapphire, EVGA or Gigabyte use. Even different model numbers by the same manufacturer may be different. What is the model number of the GPU in question?