Features :(1) Unique outward appearance designIndustrial grade aluminum drive tray handle deviceDefer to the customer demand change color of drive tray handleRecognize the Raid position using rubber capFiber optical drive tray status indicator(2) Effective cooling system4 x8cm hot-swappable system cooling fans with status monitor1 x 9cm ball bearing fan on rear to optimize airflow(3) Firm main body structure & maximum drive capacityDurable handle may draw out more than 10,000 of times3.5”hot-swp x 24, internal 3.5”x 4, , slim DVD x 1single / multilane SATA / SAS backplane option(4) Easy installation and maintenanceSupport up to EATX ( 12” x 13”)Manage Cable in orderExtractable fan module bracketprovide elbowroom assemblyOptions for 14 / 20 slot rear plateSpecification: Model NO. U4025H3000Standard EIA-RS310DDimension (W x D x H) 481mm x 660mm x4U (17.4” x26” x 4U)Material SGCC / 1.2mm thicknessBackplane SATA 3G, SAS, SATA MultilaneM/B Extended ATX ( 12” X 13”) / Quad CPU ATX BoardDrive bays 3.5”hot-swap x 24, internal 3.5”x 4, slim DVD x 1Coolings 4 x 8cm hot-swappable cooling fans (middle) + 1 x 9cm cooling fan (rear)Controls Power on/off, system reset,Power Supply 1350W (Zippy Model : M1W4-6D50F)