4D1*8CH, RS485, PTZ, Alarm, Network 2 SATA HD,VGA, USB Backup, USB Mouse Support remote ... , 1 × IR Controller1 SATA Hard Disk interfaceBackup: USB2.0 and Network D1*4CH, RS485, PTZ, NetworkSupport remote view by Mobilephone VGA ... ×45mm, weight: 4.0kg Standard Alone H.264 4CH DVR Network