... . 2Storage DVS,Support standard SATA HDD 1PCS Digital Video Server with Storage 1 Video Resolution: D1/Half-D1/CIF/QCIF2 HDD ... G711, ADPCMAudio Input1/2/4 channel, RCA port, liner input, Impedance:1KOhmsAudio Output1channel,RCA port, linear outputAudio talk-back ... ,120VAC 1A/24VDC 1AAlarm MessageSending alarm message by Email.Input Power SupplyDC 12V,3AMaximum PowerLess than 15WOperating Temperature-10 ...