... standard,maximum storage 32GNetwork InterfaceLan10/100M BASE-TX,RJ-45 connectorI/O1-channel input, Normally Open/Normally Close modes ... stream information overlay;OSD location is adjustableAudio CompressionG.711, G.726,support 32 K stereoData transmission and storageData storageVideo ... FTP,NTP,PPPOE,SMTP,UPNPWireless protocols(-W)802.11b/g,Supports WEP,WPA,WPA2("-w" model supports)ONVIF ...