Features

PERFORMANCE PERFECTED™

With an advanced 1.6 GHz dual-core CPU and an impressive 512MB of RAM, the WRT1900ACS delivers improvements in wired, wireless, and network storage performance over its predecessor, the WRT1900AC. At speeds up to N600 + AC1300 Mbps, the WRT1900ACS meets the needs of the most demanding home Wi-Fi networks. Equipped with a four-antenna configuration, the router provides exceptional signal strength and range. Advanced users also have the option of modifying the router with open source firmware.

Linksys WRT1900ACS
1.6 GHz Processor

ADVANCED 1.6 GHZ DUAL-CORE PROCESSOR TO SURF, STREAM, & GAME SIMULTANEOUSLY

With a professional-grade 1.6 GHz dual-core ARM processor, the WRT1900ACS delivers faster throughput speeds and easily handles multiple data streams simultaneously. The result: better performance, particularly in today's multi-device homes.

512MB OF RAM FOR IMPROVED DATA TRANSFER

The WRT1900ACS comes equipped with 512MB of RAM that works in tandem with the 1.6GHz CPU to move movies, music, and other large files faster. With more than double the memory of its predecessor, the WRT1900ACS improves data transfer speeds, allowing you to do more, faster.


USB 3.0, ESATA, and Gigabit Ethernet

USB 3.0, ESATA, & GIGABIT ETHERNET PORTS TO SHARE FILES

The WRT1900ACS has four Gigabit Ethernet ports that are perfect for transferring large media libraries at speeds 10X faster than Fast Ethernet. To stream or send large files across your network at high speed, simply connect a flash drive to the USB 3.0 port or an external SATA storage device to the eSATA port. The eSATA port also serves as a USB 2.0 port.


Linksys WRT1900ACS Ports

FOUR EXTERNAL ANTENNAS FOR GREATER RANGE & COVERAGE

The WRT1900ACS features four external, adjustable high-performance antennas that provide strong, reliable coverage throughout your home. The unique antenna diversity technology onboard helps your laptop, tablet, smartphone, and other connected devices achieve an optimal connection, wherever they are in your home. The antennas also enhance coverage for both 2.4GHz and 5GHz bands, keeping everyone gaming, downloading, and streaming without lag.

BEAMFORMING FOR STRONGER, MORE FOCUSED WI-FI CONNECTIONS

Designed especially for today's mobile-device households, the WRT1900ACS features Beamforming technology, which focuses wireless signals at a receiving device rather than simply sending out Wi-Fi in a general direction.


Open Source Ready

OPEN SOURCE READY

While the Linksys WRT1900ACS provides an outstanding experience via Smart Wi-Fi immediately out of the box, advanced users can further modify the router with open source firmware. Developed for use with OpenWRT, an open source, Linux-based operating system, the router offers an additional layer of customization to suit your needs.


LINKSYS SMART Wi-Fi


CUSTOMIZE AND MANAGE YOUR HOME Wi-Fi ANYTIME, ANYWHERE

With the Linksys Smart Wi-Fi App, you can closely monitor and manage your home Wi-Fi remotely using a smartphone or tablet.

  • Guest Access: Create a separate, password-protected Wi-Fi network for up to 50 guests and easily share the password.
  • Parental Controls: Ensure a safe Internet experience for your kids -- even when you're away from home. Restrict access to inappropriate or distracting content, control usage, and block specific devices from accessing the Internet.
  • Device Prioritization: You can prioritize devices that need the most speed.

QUICK AND EASY SETUP

Managing your home Wi-Fi with Linksys Smart Wi-Fi is fast and easy:

Step 1 Set up your wireless home network

Set up your home Wi-Fi using a Linksys Smart Wi-Fi Router.

Step 2 Sign up for a Linksys Smart Wi-Fi Account

Download the free Linksys Smart Wi-Fi App.

Linksys Smart Wi-Fi on iOS Get Linksys Smart Wi-Fi on Google Play
Step 3 Customize your network with the Linksys Smart Wi-Fi apps

Use Your Mobile Device to Manage Your Home Wi-Fi.

Videos

The Linksys Smart Wi-Fi App has a Whole New Look & Feel

  • The Linksys Smart Wi-Fi App has a Whole New Look & Feel

Technical Specs
  • Wi-Fi Technology:
    AC1900 Dual-band Gigabit, 600+1300 Mbps
  • Network Standards:
    • 802.11b
    • 802.11a/g
    • 802.11n
    • 802.11ac
  • Wi-Fi Speed:
    AC1900 (N600 + AC1300)
  • Wi-Fi Bands:
    2.4 GHz and 5 GHz (simultaneous dual band)
  • Wi-Fi Range:
    Very large homes
  • Number of Ports:
    1x USB 3.0 port, 1x USB 2.0 port, 1x eSATA port
  • Number of Ethernet Ports:
    • 1x Gigabit WAN port
    • 4x Gigabit LAN ports
  • Antennas:
    4x external, dual-band, detachable antennas
  • Processor:
    1.6 GHz dual-core ARM-based
  • Memory:
    128MB Flash; 512MB DDR3 RAM
  • LEDs:
    Power, Internet, 2.4 GHz, 5 GHz, LAN 1–4 (10/100Mbps or 1Gbps), USB 3.0, USB 2.0, eSATA, Wi-Fi Protected Setup™
  • Wireless Encryption:
    64/128-bit WEP, WPA2 Personal, WPA2 Enterprise
  • VPN Support:
    PPTP Pass-Through
  • Operation Modes:
    • Wireless Router
    • Access Point
    • Wired Bridge
    • Wireless Bridge
  • Storage File System Support:
    • FAT
    • NTFS
    • HFS+
  • Easy Setup:
    • Browser-based Setup
    • Linksys Smart Wi-Fi Setup
  • Certified Operating Systems:
    MacOS (10.X or higher), Windows 7, Windows 8.1, Windows 10
  • Minimum System Requirements:
    • Internet Explorer® 8
    • Safari® 5
    • Firefox® 8
    • Google Chrome™
  • Dimensions (LxWxH):
    121 x 75 x 26 mm (4.76 x 2.95 x 1.02 in.)
  • Weight:
    722.2 grams (28.43 oz)
  • Security Features:
    • WPA/WPA2
    • 128 bit AES link encryption
  • Regulatory Compliance:
    FCC class B
  • Other Certifications:
    • DNLA Certified
    • Wi-Fi Alliance
    • WPS Setup
  • Power Supply:
    Input: 100-240V ~ 50-60Hz; Output: 12V/2.5A
Support
Package Contents
  • Linksys Dual-Band Gigabit Wi-Fi Router AC1900, WRT1900ACS
  • Quick Start Guide
  • CD-ROM with Documentation
  • 4 Antennas
  • Ethernet Cable
  • Power Adapter
Reviews
Rated 3 out of 5 by from Where's wireless N? So it says it support wireless N. I have a Dell laptop with Intel(R) Centrino(R) Advanced-N 6205, my throughput on my speed test is barely at 2MB/S connected to 5Ghz. I'm also the same person that wrote the review of the EA8500 that I took back to BestBuy. Looks like I'll be taking this one back as well. I guess no more Linksys routers for me, two strikes so far. Here's my photos attached, the whopping 2.34MB connection is connected to 5Ghz and the better 73MB on 2.4G. How's that possible? If I enable TWC's Arris Modem's built in Wireless I get up to 133MB connection on N but I don't want to use the all in one from TWC. So, where's N mode? As i don't see it in the router settings.
Date published: 2016-02-22
Rated 1 out of 5 by from Always Needs to be Rebooted!! Very Disapointed Disappointment cannot even start to describe my feelings about this router. $250 waste of money. When it works it works great. Problem is that is less than 24 hours at a time, just about daily it slows or just loses connection for no reason. Everything works great after you reboot but wow this is $250 should not need to have to be rebooted daily or before you do anything important online. It just recently lost connection while I was taking an exam online. Caused me a great deal of problems because of it. This router might test out great but any place that gave it good reviews never used it for a 24 hours more less a week. At this point I want my money back.
Date published: 2016-04-09
Rated 5 out of 5 by from Powerful Wifi Router !!! I'm liking this new version WRT1900ACS with its new features Dual Core 1.6GHz, 128MB flash, & 512 !!!! MB DDR3 RAM !!!. I am currently running 4 pc's and 22 wifi devices connected with no drop. I'm glad I choose this new ACS over any other router out in the market. I also paired this ACS model with Linksys newest switches model WRT8 Ports Gigabyte & with the Linksys model SE3005 /5 ports.... I strongly believe I made the right choice. I would like to see Linksys built a big big FAT wifi router just for the looks. My last thought, good job Linksys ! WRT1900ACS is a winner..
Date published: 2015-10-15
Rated 1 out of 5 by from Stability issues We use a VPN Connection (separate OpenVPN Server not the included) and the biggest Problem with this Router is the stability. We also use one client as a webradio over LAN, so we can hear when the internet is not working (We have FTTH 1Gbits). Also there is a strange behavior when someone uses Wifi. If you transfer big files over Wifi (thank God most of our client only use LAN) the Wifi completly breaks down. But not only that the LAN Clients also lose connection. My advise to you: only buy this thing if you are not using it in a productive environment and don't need Wifi. A big disappointment for this price. I will test openwrt. Hopefully this is more stable.
Date published: 2016-03-08
Rated 4 out of 5 by from Mostly Pleased with the WRT1900ACS I moved from the E3000 to the 1900ACS for two reasons and those were better parent controls and hopefully better wireless coverage. I am pleased with the results in both cases. However, improvements in the guest control feature as well as parental controls would make this a superb router for those needing such features. I have had to restart the router a few times to be able to access the wireless side of the router. Using three different wireless devices produced the same message "unable to authenticate". Once the router was restarted all devices were then able to use the wireless connection. Not really sure why this happens, but it has only happened 3 times in about a month.
Date published: 2016-01-03
Rated 5 out of 5 by from Easy setup, works great. I usually stay comfortably behind the technology curve at home (frugal and just don't care about the latest gadgets) but I bought this unit to serve my two new smart TV's (what was I thinking waiting so long for 1080p HD?) and it is great. I use computers every day at work but I am not well versed in setup or any system admin stuff. This router has simple setup instructions and it was very fast and easy to setup using the browser on my mac laptop. It is working perfectly and I am very pleased with it. I'd certainly recommend it.
Date published: 2015-12-07
Rated 5 out of 5 by from Major upgrade I upgraded to the WRT1900ACS router from a Cisco Linksys E4200. My internet is through U-verse on an NVG510 modem. Setting up the E4200 with the NVG510 was a complex project, and I expected the same hurdles with the WRT1900ACS. Anticipating that, I replicated the settings from the E4200, including setting the WRT1900ACS Internet Connection Type as Static, etc., etc. That ended up being a mistake. After Linksys tech support had me reset it to DHCP Auto Config and doing a reset, the entire network is working beautifully, including being able to establish connections to devices I had given up on. Major upgrade with unanticipated benefits.
Date published: 2016-10-15
Rated 5 out of 5 by from Excellent router for a large household This router was purchased for a 5 person household containing 15 wireless clients one of which is a high end gaming machine. We have used numerous Linksys routers so we did not use the setup CD but had no issues installing the router. Our household includes 802.11b,g,n and ac devices and all but the gaming PC attached with no issues. A short look through our favorite hardware forum produced the information we needed to set the necessary parameters and now the PC connects at the desired speed. The ability to set that particular PC for media prioritization was one of the main reasons for purchasing this router. We are definitely pleased with this purchase.
Date published: 2016-03-02
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*The standard transmission rates—450 Mbps or 1300 Mbps (for 5 GHz), 600 Mbps (for 2.4 GHz), 54 Mbps, and 11 Mbps—are the physical data rates. Actual data throughput will be lower and may depend on the mix of wireless products used and external factors.
**While Linksys fully embraces the open source community and is providing open source use capabilities, they do not offer technical support on using open source firmware. Installing 3rd party firmware is done at your own risk and replacing factory-installed firmware with open source firmware will void your warranty. Please always seek the advice of more experienced users via open source community forums if you’re unsure.