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As the high-end wireless router series in the Linksys family, WRT1900AC is a replica of Linksys' classic WRT54G. The WRT1900AC uses the same design style and color as the WRT54G. The body is hexagonal, and the lines are more rigid and technical. And equipped with four omnidirectional antennas. 
System Configuration and APP
WRT1900AC system configuration main page and NETGEAR are somewhat similar, such as the left of the settings and the right of the function widget, plus a dark blue gradient color, the feeling is very simple and fresh, but the system does not have a bit unhappy with Chinese, fortunately this point English is not a problem. 
As a smart router, how can there be no App? Therefore, Linksys has developed Linksys Smart Wi-Fi specifically for smartphones, but it is only supported on the LAN it is built on. In terms of UI, the color matching style and function are the same as those of the Web interface, but the screen size is limited. The Widget adopts a card type that can slide around. 
Test summary: Although positioned as high-end, WRT1900AC is still a household product, so there are not many places in the firmware for user configuration, especially some professional parameters. However, since WRT1900AC supports the open source OpenWRT, so you can brush this more professional, more functional third-party firmware, but at present not much.
Test articles have to admit that Xiao Bian has a lot of system configuration, I believe we are still most interested in WRT1900AC test, come on!
PS: According to Xiao Bian's experience of writing N router evaluations in the media, if we put the test results in full screen shots, I am afraid that the length of the article will drop the phone. Therefore, we summarize the test results and use a graph to represent them. Simple and straightforward, but also provincial traffic.
Signal strength test Test location: Three-bedroom in a second-tier city with an area of ​​140 square meters Test equipment: Lenovo's new notebook, wireless network card support 2.4GHz and 5GHz
Test Software: WirelessMon
Room layout: As shown in the figure below, use the system to draw pictures (OK, or because I'm lazy) 
Throughput test equipment: alien Alpha, wireless network card BCM94352Z, Gigabit Ethernet.
Test Software: Ixia Chiraot
PS: For the following reasons, the test results are for reference only, as shown in the figure below (10 screenshots were condensed for everyone)
1. The throughput test result is its ideal value, so it is necessary to build an ideal environment as much as possible, such as full signal.
2. This test simplified the network model for throughput testing. A computer can have a wireless network card and a wired network card. 
External interface speed test test equipment: Kingston G2 16GB USB3.0 USB flash drive, Synology DS213 NAS, is the following two goods test interface: USB2.0, USB3.0, eSATA, LAN
Test Software: CrystalDiskMark 
Test summary 1, signal coverage: four-star 2, data throughput capacity: four and a half 3, interface transmission speed: five-star 4, system stability: five-star 5, firmware playability: Samsung
What router is good? WRT1900AC flagship router complete experience
Figure: Linksys WRT1900AC Wireless Router
Configuration, WRT1900AC V1 and V2 versions, V1 version equipped with Marvell (commonly known as the horse) ARMADA XP 1.2GHz dual-core processor and 256MB DDR3 memory, and V2 is equipped with a Marvell ARMADA 385 processor, is to double the memory To 512MB (we use V2 oh); support 802.11a/b/g/n/ac 2.4GHz and 5GHz dual-band wireless specifications and 3x3 MIMO, the maximum transmission rate is 1300+600Mbps. Figure: Signal indicator panel of Linksys WRT1900AC
The panel of WRT1900AC is a black acrylic material with power supply, Internet, LAN, 2.4GHz, 5GHz, eSata and USB indicator light. After power-on, it is quite cool like a sports car headlight. Figure: Top cover of Linksys WRT1900AC
The WRT1900AC has a large number of cooling holes on the top cover, and it continues the WRT54G's "shoulder" design (that is, the top cover corresponds to the position of the four feet). The difference is that the WRT54G is a pit, while the WRT1900AC is a bump. Figure: The bottom cover of the Linksys WRT1900AC
The four feet on the bottom of the WRT1900AC are equipped with rubber anti-slip mats and have four-way fixed cap holes with crosses. At the same time, there are a large number of cooling holes on the bottom. Figure: Nameplate label of Linksys WRT1900AC (V2 oh)
Figure: Interface of Linksys WRT1900AC
In terms of interfaces, WRT1900AC is equipped with five Gigabit RJ45 interfaces, one USB 3.0 interface, and one USB2.0/eSATA composite interface. The antenna interface is a universal SMA and gold-plated design. Figure: Antenna of Linksys WRT1900AC
The WRT1900AC is equipped with four redesigned omnidirectional omnidirectional antennas. It is very heavy and has a weight of 5dbi and supports waveform bundling. Figure: Power supply for Linksys WRT1900AC
Due to the high hardware configuration and the problem of users expanding external storage in the future, the WRT1900AC is equipped with a 12V 3A switching power supply, and comes with three different specifications of removable plugs, which are used worldwide. Figure: Linksys WRT1900AC system main interface
In addition, from the configuration items you can see a lot of features, such as media services, parental controls, storage management, etc. We will also take a few screenshots to share with you. Figure: Network map of Linksys WRT1900AC
Different from the traditional device list, the WRT1900AC system is represented in the form of a network map and can accurately determine the types of connected devices, such as mobile phones, tablets, boxes, and NAS. Figure: Visitor Network Settings for Linksys WRT1900AC
Guest Wi-Fi is used to isolate visitors from users on the intranet, to prevent intranet users from leaking information, or to infect virus Trojans brought by guest networks. This should be a standard feature on mid- to high-end routers. Figure: Network speed plug-in for linksys WRT1900AC
By the way, WRT1900AC's system also has built-in network speed plug-ins that everyone likes. From OOKLA, it's very authoritative. Everyone is running. Figure: Parental Control Features of Linksys WRT1900AC
This thing is, is the parent used to manage the time of bear children online, with the firewall can also block some unhealthy sites, can be understood as "Green Dam"? Figure: VLAN configuration of Linksys WRT1900AC
As a powerful machine, WRT1900AC also supports VLAN functionality, but it is obviously much simpler to configure than using command-line configuration in enterprise-class devices. Figure: OpenVPN Server Settings for Linksys WRT1900AC
OpenVPN Server, this is not much to say, you all know. Figure: Smart Wi-Fi Application of Linksys WRT1900AC
In addition, WRT1900AC system can also install some function plug-ins, you can see there are three in the App Center, but really do not understand these tall apps in the end is dry, but also pay fees. Figure: Schematic diagram of the test environment
In terms of Wi-Fi signal coverage, the WRT1900AC performed fairly well, but there was no such thing as a villa-level wireless router. As these goods did not increase the transmission power, they had a stronger gain antenna and they were "open". Test results as shown below (enriched 18 screenshots for everyone) Figure: Linksys WRT1900AC throughput test
Test summary: Due to tester wireless network card specifications and compatibility reasons, 2.4GHz connection speed is only 150Mbps, 5GHz connection speed is only 650Mbps, the test results will certainly be discounted, but 5GHz still reached 409.07Mbps in the single-threaded download test, Therefore, if there is a high-end wireless network card, 449Mbps to PC Magazine's evaluation is still no problem, this is a great advantage of WRT1900AC hardware configuration. Figure: Test Equipment
The test results are shown below (again eight screenshots for everyone) Figure: Linksys WRT1900AC external interface test
Test summary: WRT1900AC's external interface read and write capabilities are relatively satisfactory, whether it is USB 2.0/3.0, eSATA, and NAS data transmission speed is almost the same as a direct-connected computer, which is another great advantage of the high hardware configuration. Of course, if this test can get a USB 3.0 interface mobile hard disk + SSD, I believe the test results will be more ideal.