... SATA HardDisk, Mouse,with VGA,USB,network,RS485 PTZ controll,IE browse,support DVD/CD backup 4ch,H.264 compression ... support SATA HardDisk, Mouse,with VGA,USB,network,RS485 PTZ controll,IE browse,support DVD/CD backup AccessoriesSpecification4ch,H.264 compression ... audio input,2ch output;one remoter*Support TCP/IP protocal, USB,DVD/CD backup; one operation mannual*Recording bitstream/ frame adjustable ...