Features:   Dimensions: 19" x 10.5" x 17" or 24" 8, 14, 20 Slot and ATX Slot Passive Backplane Hot Swap Power Supply Option Front Removable, Washable Filter Positive Pressure Filtered Air 4 to 8 Filtered Cooling Fans Up to 12 Front Accessible Drives Controls and Drives Behind Locking Door Vibration Clamped Boards 6U (10.5") High Custom Design and Finishes Available Manufactured in the USA Base Part No. Rear CG + Type Dimensions (W)x(H)x(D) Type Metal Type Front Type Door Type Filter Hot Swap No. Fans 5.25" Bays 3.5 Bays 6U System Enclosures w/o power supplies or boards RM6U17 8/14/20/ATX 19"x10.5"x17" ALUM STD LOCK WASH 4 0-4 3-9 RM6U17HS 8/14/20/ATX 19"x10.5"x17" ALUM STD LOCK WASH HORZ 4 0-4 3-9 RM6U17A 8/14/20/ATX 19"x10.5"x17" ALUM FLUSH LOCK WASH 4 0-4 3-9 RM6U17AHS 8/14/20/ATX 19"x10.5"x17" ALUM FLUSH LOCK WASH HORZ 4 0-4 3-9 RM6U24 8/14/20/ATX 19"x10.5"x24" ALUM STD LOCK WASH 8 0-4 3-12 RM6U24HS 8/14/20/ATX 19"x10.5"x24" ALUM STD LOCK WASH HORZ 8 0-4 3-12 RM6U24A 8/14/20/ATX 19"x10.5"x24" ALUM FLUSH LOCK WASH 8 0-4 3-12 RM6U24AHS 8/14/20/ATX 19"x10.5"x24" ALUM FLUSH LOCK WASH HORZ 8 0-4 3-12 RM6U24B 8/14/20/ATX 19"x10.5"x24" ALUM VERT LOCK WASH 8 0-4 3-12 RM6U24BHS 8/14/20/ATX 19"x10.5"x24" ALUM VERT LOCK WASH HORZ 8 0-4 3-12 RM6U24DW D8 19"x10.5"x24" ALUM DW LOCK WASH 8 0-4 3-12 RM6U24DWHS D8 19"x10.5"x24" ALUM DW LOCK WASH HORZ 8 0-4 3-12 RM6U24DW 8/14/20/ATX 19"x10.5"x24" ALUM DW LOCK WASH 8 0-4 3-12 RM6U24DWHS 8/14/20/ATX 19"x10.5"x24" ALUM DW LOCK WASH HORZ 8 0-4 3-12 RM6U26 8/14/20/ATX 19"x10.5"x24" ALUM STD LOCK WASH 8 0-4 3-12 RM6U26HS 8/14/20/ATX 19"x10.5"x24" ALUM STD LOCK WASH HORZ 8 0-4 3-12 RM6U26A 8/14/20/ATX 19"x10.5"x24" ALUM FLUSH LOCK WASH 8 8 OPT RM6U26AHS 8/14/20/ATX 19"x10.5"x24" ALUM FLUSH LOCK WASH HORZ 8 8 OPT RM6U26B 8/14/20/ATX 19"x10.5"x24" ALUM VERT LOCK WASH 8 8 OPT RM6U26BHS 8/14/20/ATX 19"x10.5"x24" ALUM VERT LOCK WASH HORZ 8 8 OPT