Parental Controls - allows you to control the internet access to devices on your network as well as block access to websites based on keywords. It is a rather basic parental controls feature which has limited usefulness and needs manual maintenance.
Guest network - you can enable up to six additional WiFi networks, three for each band. However, visitors cannot be blocked from access to your network, for increased security and privacy. This is a negative compared to other AC1200 wireless routers from TP-Link which offer network isolation for guests.
USB Sharing - allows you to connect USB storage devices like an external hard disk or a printer and share them with the network. An important novelty is that you can also connect a 3G/4G USB modem and use it as a backup for when your primary internet connection fails. This feature is rarely seen on AC1200 wireless routers.
Bandwidth Control - a basic Quality of Service feature that helps you control how the total bandwidth is split between devices and applications.
Dynamic DNS - allows you to assign a fixed host and domain name to a dynamic IP address. It can work with the No-IP and DynDNS service providers.
VPN server - you can set the router to work as a VPN server using OpenVPN and PPTP VPN protocols. The router also allows VPN pass-through for clients that are connecting to external VPN services.
System Tools - a collection of logs, statistics and diagnostic tools that allow you to troubleshoot problems.