Linksys

Linksys Open Source Dual-Band Gigabit WiFi Wireless Router, Speeds up to (AC1900) 1.9Gbps - WRT1900ACS

Name: Linksys Open Source Dual-Band Gigabit WiFi Wireless Router, Speeds up to (AC1900) 1.9Gbps - WRT1900ACS
Brand: Linksys
SKU: B014MIBLSA

Status: Linksys Open Source Dual-Band Gigabit WiFi…: Unavailable on Amazon as of 2026-10-07 04:32 UTC. SpecPicks has no in-stock listing with matching specs on file; the search below lists current offers. eBay sellers may still list this model new or used.

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Bottom line: The Linksys Open Source Dual-Band Gigabit WiFi Wireless Router: Dual-core 1.6 GHz ARM CPU with 512MB RAM handles simultaneous 4K streams and gaming; main trade-off: AC1900 Wi-Fi 5 spec, so no Wi-Fi 6 or 6E clients gains.

Unavailable on Amazon as of 2026-10-07 04:32 UTC

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Currently unavailable on Amazon. Not the same product — 3 in-stock alternatives:

Similar: NETGEAR Nighthawk Cable Modem and WiFi 5 Router… — $98.97 on Amazon as of 2026-10-06 22:16 UTC (price may vary).

View Current Price — $98.97

Similar: Linksys AC1900 Wi-Fi Wireless Dual-Band+ Router… — $74.99 on Amazon as of 2026-10-07 04:25 UTC (price may vary).

View Current Price — $74.99

Similar: TP-Link AC1900 WiFi Range Extender RE550 — $31.99 on Amazon as of 2026-10-07 06:16 UTC (price may vary).

View Current Price — $31.99

Original listing (currently unavailable) → Compare to similar networking

By Mike Perry, Founder & Editor-in-Chief · Listing data updated 2026-10-07

Mike Perry — Hardware researcher since 2014. For home networking and Wi-Fi gear, synthesises manufacturer specs and independent reviews rather than first-hand lab testing. Core beat: GPU performance across gaming, rendering, and local-LLM inference. About the author →

Pros & Cons

Pros

✓ Dual-core 1.6 GHz ARM CPU with 512MB RAM handles simultaneous 4K streams and gaming
✓ Open Source Ready firmware support for OpenWrt-style custom builds
✓ USB 3.0 plus dual eSATA/USB 2.0 ports for fast attached-storage sharing
✓ Four detachable, adjustable external antennas aimed at multistory coverage
✓ AC1900 dual band: 600 Mbps on 2.4 GHz plus 1300 Mbps on 5 GHz

Cons

✗ AC1900 Wi-Fi 5 spec, so no Wi-Fi 6 or 6E clients gains
✗ Four antennas plus tall chassis takes significant shelf space
✗ No mesh nodes in the box; coverage relies on the single unit

Manufacturer description

The Linksys WRT1900ACS is a dual-band AC1900 router built for households that push their network hard. Simultaneous dual-band radios deliver up to 600 Mbps on 2.4 GHz and 1300 Mbps on 5 GHz, and the dual-core 1.6 GHz ARM processor with 512MB of memory keeps multiple streams, game sessions, and file transfers moving without the stalls a single-core router introduces. Four external, detachable, adjustable antennas are tuned for dual-band coverage, so multistory homes and small offices lose fewer dead spots than they would with internal-antenna designs. What separates this Linksys router from…

SpecPicks Verdict

SpecPicks scored Linksys Open Source Dual-Band Gigabit WiFi Wireless Router using a rating × review-volume × price-fit model applied to published specs and reviews across the networking category. Linksys's networking lineup sits within the broader category mid-tier; price and specs are the deciding factors over brand loyalty here. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.

Common buyer scenarios for networking of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the retailer's listing before purchase. Prices and stock are set by the retailer and may have moved since this page was last updated.

Frequently Asked Questions

How fast is the Linksys WRT1900ACS?

It is an AC1900-class router: up to 600 Mbps on the 2.4 GHz band and 1300 Mbps on the 5 GHz band, running simultaneously. Wired devices get four Gigabit Ethernet ports.

Can I install OpenWrt or other custom firmware on it?

Yes. Linksys markets the WRT1900ACS as Open Source Ready, meaning the hardware is intended for users who want to replace the stock firmware and customize the router.

Will it cover a two-story house?

Linksys engineered the four external, adjustable dual-band antennas specifically for multilevel homes and small offices. Coverage still depends on construction materials and layout, so a single unit is not guaranteed to reach every room.

Can I attach a hard drive and share files over the network?

Yes. There is a USB 3.0 port for faster transfers than USB 2.0, plus a dual eSATA/USB 2.0 port that accepts external SATA drives or USB 2.0 devices.

Does it support parental controls and guest Wi-Fi?

The stock software lets you prioritize devices or websites, set parental controls, create password-protected guest networks, toggle Wi-Fi access, and view a visual Network Map of connected devices.

Key Features

Wireless AC, up to 4.3x faster than N technology: Simultaneous dual band speed up to 600 Mbps (2.4 GHz) + 1300 Mbps (5 GHz) for media intensive applications
4 high performance antennas: Engineered to enhance dual band communication, four external, adjustable antennas ensure supreme Wi Fi signal strength in multilevel homes and small offices
Dual Core 1.6 GHz CPU: Powerful CPU promotes simultaneous high speed data processing allowing multiple users to simultaneously game online, stream movies, and transfer files without lagging
Share content via an external storage device with ultra fast data transfer speeds. USB 3.0 delivers enhanced performance over USB 2.0; eSATA delivers optimal data transfer speeds from external SATA drives and accommodates USB 2.0
Users can prioritize devices or websites, gain parental control over content, monitor network activity, turn Wi Fi access on or off and create select password protected guest networks. Network Map offers a visual map of the home network
Open Source Ready: Users gain unprecedented access to customize the router

Full Specifications

Brand	Linksys
Color	Black
Voltage	230 volts
Coverage	Multi-level home coverage
Frequency	5 GHz
Processor	Dual Core 1.6 GHz ARM based. Power Supply: Input: 100-240V
Model Name	WRT1900ACS
Unit Count	1 Count
Antenna Type	Fixed
Connectivity	Wireless, USB, WiFi, 2.4GHz
Model Number	WRT1900ACS
Built-In Media	Ethernet cable, power cord
Control Method	App
Connection Type	Wireless
Controller Type	vera
Mfr Part Number	WRT1900ACS
Number of Ports	3
Special Feature	WPS
Antenna Location	Gaming, Home
Item Part Number	WRT1900ACS

Ready to buy?

Amazon shows no buyable offer for Linksys Open Source Dual-Band Gigabit WiFi… at the last check. A similar in-stock product is NETGEAR Nighthawk Cable Modem and WiFi 5 Router…. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.

View Similar — $98.97