... max, 6 SATA devices(HDD*4+eSATA*1,HDD*4+DVD*1,HDD*4+DVD*1+eSATA*1)External HDDYES ... levels for each channelArea, programmable individuallysearchYESEvents logUp to the 1000 eventsGUI16-BIT ture colorOSD and DVR controlMulti-languageEnglish ,china ... mouseYESTouch panelTouch panel LCD monitorRemote controlIR Remote control max 4 deviceSystems upgradeVIA USB/networkPan ,tilt,zoom,controlControl form ...