Does this NAS WD My Cloud EX2 Ultra have its own WiFi interface in addition to the RJ45/ 1 Gbit LAN port? Are there two NICs built in? 1. a NIC with output (RJ45/ 1 Gbit LAN port) through which the device can be hooked up to the network via Ethernet cable. + 2. a wireless NIC that only needs SSID + password (but no Ethernet cable) to be connected to the network. My "problem": I need a NAS that can work with my NETGEAR Nighthawk M1 mobile 4G hotspot.