Summary: Comments about Zalman Z-Machine GT900 Chassis: Wonderful case; bit small. Wire management is tough due to length of case... stick with GT-1000. The hard drive bay roller only works with some drives; an SSD does not fit well and lock. Can't imagine sticking a second VGA behemoth in here but most might try. Three cards would be out of the question. Finding a 120mm fan as a replacement; forget about it. Overall; solid aluminum panels; bullet proof and heavy.