... 3rd system & Windows mobile system)Support to backup & upgrade with USB flash diskSupport up to 2 x 1TB(1000GB) SATA HDDsSupport to ... at the same time with Channel Switch functionUSB2.01 USB mouse, 1 USB backup devicePlaybackLocal: max. 4-channel at the same ... RS-485 port, support PELCO-P & PELCO-DBackupUSB Flash Disk, Removable HDD, USB CD/DVD-RW, NetworkAlarm ModeMotion Detection, Sensor triggered, ...