Ajax Wireless Security Hub Plus, White, 3G, Ethernet, Wi-Fi, Video streaming//https://ajax.systems/products/hubplus/#specBlockConnected devices - 150Video surveillance - Up to 50 cameras or DVRsUsers - 99Rooms - 50Security groups - 25Connected ReX - 5Connected sirens - up to 10Scenarios - 64MotionCam detectors support - NoCommunication channels: 2 SIM cards 2G (900/1800 MHz); 3G (WCDMA 900/2100 (B8/B1)) ; Wi-Fi 2.4 GHz (802.11 b/g/n) ; EthernetSIM card support - Micro SIM 2GOperating temperature range: ?10°C to +40°C