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 system5x 4cm cooling fans with status monitor (option)(3) Firm main body structure & maximum drive capacityDurable handle may draw out more than 10,000 of times3.5”hot-swap x 4 (SATA/SAS) , 2.5” HDD x 2, 1 x slim ODDSATA / SAS or Mini SAS backplane for optionFront access USB connector x 2(4) Easy installation and maintenanceSupport up to ATX ( 12” x 10.5”)Manage Cable in orderprovide elbowroom assemblySpecification:Model NO. U1105M2000Standard EIA-RS310D Dimension (W x D x H) 481mm x 495mm x 1U (18.9” x19.5” x 1.7”)Material SGCCM/B ATX ( 12” X 10.5”)Drive bays 3.5”hot-swap x 4 (SATA/SAS) , 2.5” HDD x 2, 1 x slim ODDCoolings 5 x 4cm ball bearing (side)Indicators Power, Fan Failure, Lan LED, HDD LEDControls Power on/off, system reset, USB port x 2Slots 1 (PCI or PCI-E)Power Supply 1U Single PSU (200 x 100 x 40.5mm) (L x W x H)