Product Detail 3 x 3.5" HDD extension Cage 1 x 120mm ball bearing fan (1000RPM) HDD mounting with Lian Li patented anti-vibration kit HDD cage gate to secure the HDDs. Dim?149mm (W) x 129mm (H) x 193mm (D) . The "Lian Li EX-33B1" is best product for you. We recommended Lian Li EX-33B1