Features All2.5 or3.5 SATAHDDcompatibleUSB2.0tranferrateupto480Mbpse-SATAtranferrateupto3.0Gbps,e-SATAportfirst.Compactsizedockingdesign12V/5VpoweradaptorPatentdesignforHDDdepartfromdockingunitPowerLEDindicate AccessLEDindicateExternalpoweradapternecessary RequirementPentium266MHzorhigher64MBRAMorhigherUSB2.0portProductdimension:170x110x80mm ModelNo. ConnectionGEN-220SU(2bay) SATATOUSB2.0GEN-220SU(2bay) SATATOUSB2.0+CardReader+HUBGEN-220SU-Raid(2bay) SATATOUSB2.0+Raid