The MobileMule 8150 is an nine channel Mobile DVR which can connect and record simultaneously up to 9 cameras (8 regular/AHD cameras and 1 forward facing IP camera). Footage records onto an included Western Digital 1TB hard drive with backup recording onto 1 SD card (sold separately) with a total storage capacity of 128GB. With built-in GPS, this high capacity DVR will record the vehicle's location and driving route as well as camera footage to provide the full picture from what's happening on the road. Perfect for fleets of trucks and buses, The MobileMule 8150 is vibration-proof and combines powerful functions together with a stable performance. Select the GPS+WiFi option to upgrade to live video remote viewing. This allows the DVR to connect to a WiFi hotspot in your vehicle. This model is compatible with jetpacks from all major carriers. Perfect for fleet tracking (can be used as a GPS tracker) and fleet management this DVR allows you to easily view and download footage even while the vehicle is on the road! Click here to learn more about connecting to a WiFi network. Note: A Western Digital 2.5" 1TB Hard Drive is included. This is the only drive compatible with this system. ***Note: To manually transfer footage off the SATA Hard Drive, use the RVS-SATA-USB Adaptor Note: Software is only compatible with Windows Computers.