... ,data rate adjustableCommunication interface:1RS485Hard disk storage: SATA port,Support 2.5 SATA HDD,Drawer-type designRecord mode ... data,GPS data 1 SATA HDD port 1 infrared remote portInput/Output Port: 8channels switch input,1channel velocity sensor input, ... 1channel alarm outputPower input: DC8-36V,Power switch,Over-current, ...