As others have said, my router arrived USED. Items were missing, all boxes were open and the router was already configured and password protected. After dusting and hard resetting to remove passwords blocking access to the router, I was able to quickly set up the router with LTE. Modem connected to USB. The speed and range are on par with the AirPort Extreme it replaced, and I've been able to ditch my crappy wired internet and use my carrier's unlimited data plan with a real router that covers the whole house and allows all 20 or so devices to connect securely. The built-in TimeMachine support (I plugged a hard drive into a different USB port) doesn't work with the current firmware version and T-Mobile doesn't seem to bother updating it, but a quick google web search does it will show you how to flash Asus firmware.
π StarTech.com NETRS2321P: 1-Port RS232 to Ethernet IP Converter, Serial over IP Device Server - Black
5 Review
UGREEN USB 3.0 Ethernet Adapter Hub with RJ45: Fast Gigabit Ethernet Converter, 3 Ports USB 3.0 Hub Compatible for MacBook, iMac, Surface Pro, Chromebook, Laptop, PC
11 Review
π StarTech.com NETRS232 Serial to IP Ethernet Device Server - DIN Rail Mountable - Serial Device Server - Serial Over IP Device Server (Black)
4 Review
π USR-TCP232-410s: RS232/RS485 Serial to Ethernet Adapter/IP Device Server with DHCP/DNS Support
4 Review