-          RSV-R4000 can carry internal 3.5" HDD x8/ 5.25" device x3 (which can switch to a 3.5" HDD x 4 module) totally.

-          Best cooling design can carry up to front 120 mm cooling fan x2 and back 80 mm cooling fan x2 max; all 4 are included in RSV-R4000.

-          Front door with key lock for better security.

-          Special design of fixing PCI card in the system (7 pieces max).

-          Dual USB 2.0 connector in front panel.

-          Supports PS2 power supply form factor.