... QCIF> HDD storage, 2TB maximum> 802.11b/g WIFI network (optional)> 3G (WCDMA/CDMA2000/TD-SCDMA) optional KD-DS101CTWired,1 channel ... WWireless,2 channel, D1KD-DS102DT-3G2 channel, D1, support 3G Network:EVDO( CDMA2000),WCDMAKD-DS104CTWired,4channel, CIFKD-DS104CT-WWireless, ... mobile monitor that is based on Windows Mobile, Symbian , Android and iPhone platformsAlarm Input 4 channel on/off input, ...