RouterChart.com

Linksys WRT51AB router review

54 Mbps
IEEE 802.11a/b
Broadcom BCM4702 @ 125 MHz
16 MB / 4 MB

Linksys introduced the WRT51AB router in 2002. It is powered by Broadcom BCM4702 @ 125 MHz chipset, 16 MB of RAM, and 4 MB of flash memory.

Want to know if the Linksys made a really good router? Keep reading to know!

Table of Contents

  • Linksys WRT51AB specifications
    • Body, dimensions, weight
    • System, chipset, RAM, flash, power supply
    • Network, protocols, WAN and LAN ports
    • Wireless, antennas, speed, security
    • Connectivity
    • Administration, user interface, login information
  • Verdict, Pros and Cons
  • Photos
  • Comparisons

Our personal experiences and opinions form the basis of this article. We aimed to share insights on a topic, and we hoped others would find it useful and inspirational. The specs below rely on official manufacturer data, but we also consider user reviews. If you noticed any mistakes or missing details about the Linksys WRT51AB, please let us know. Furthermore, we strive to deliver a thorough and precise overview.

Linksys WRT51AB / WRT51AB

The WRT51AB router operates on the 2.4 GHz frequency band. It offers decent wireless coverage and works with many devices. Linksys offers good customer support, including firmware updates, documentation, and technical assistance.

Linksys WRT51AB specifications

BrandLinksys
NameWRT51AB
TypeWRT51AB
Rating
Rated 3/5 based on 1488 user votes.
Launch2002

Body

Dimensions186 x 48 x 175 mm
Weight400 g

The dimensions and design of a router can impact its cooling capabilities. Routers with larger dimensions may have more space for internal cooling mechanisms. The weight of router is not typically a critical factor for most home or office setups.

System

ChipsetBroadcom BCM4702 @ 125 MHz
RAM16 MB
Flash4 MB
OSLinksys
Power supply5 V / 2.5 A

The Linksys WRT51AB router has a Broadcom BCM4702 @ 125 MHz processor. You cannot expand the router's memory (16 MB). When choosing a router, it is important to consider the RAM specifications. A larger flash memory allows for more space to store configuration backups. Linksys often releases firmware updates. They improve the router's features, security, and bugs. They also add new features. The 5 V / 2.5 A PSU provides power to the router. If it breaks, you can replace it with a new one.

Network

ProtocolsIPv4
LAN ports4 x 10/100 Mbps
WAN ports1 x 10/100 Mbps
Mobile networkno
VPN supportno

The router supports many networking standards. It ensures compatibility with different devices and systems. The IPv4 is the fourth iteration of the Internet Protocol (IP). It is the most widely used version of IP on the internet today. The WAN port on the WRT51AB router is a Fast Ethernet port, not a Gigabit Ethernet.

Wireless

Antennas2 x 5 dBi
RP-SMA
2.4 GHzyes
5 GHzno
60 GHzno
StandardsIEEE 802.11a/b
ClassG54
Speed54 Mbps
Transmit power18 dBm
SecurityWEP
Guest networkno

This router has 2 x 5 dBi, RP-SMA antennas. Antennas are key parts of wireless routers. They send and receive radio signals to make wireless connections. Many IoT devices, smart home devices, and older Wi-Fi devices mainly use the 2.4 GHz band. The top speed, 54 Mbps, is the highest data rate the router can reach. It's the theoretical limit in perfect conditions. WEP was the first Wi-Fi security protocol. But it is now seen as weak and easy to hack.

Connectivity

USB portsno
Print serverno
File serverno

The WRT51AB router doesn't have file-server or print-server functionality.

Administration

Default IP192.168.1.1
Default usernameadmin
Default passwordadmin

Changing the password often is a good security practice. It protects your network and devices from unauthorized access. Changing the default password improves your router's security. It reduces the risk of unauthorized individuals controlling your network.

Pros and Cons

Every router, including this Linksys one, has its good sides and not-so-good sides. Let's take a closer look at both to get a full understanding of what this router can do. We'll talk about what it does well and also where it could use some improvements. Just remember, this is just what I think, and you might see things differently.

Pros

  • lightweight

Cons

  • insufficient memory
  • insufficient flash
  • lack of Gigabit LAN
  • Non-gigabit WAN port
  • missing Wi-Fi 6 support
  • lacks Wi-Fi 5 compatibility
  • reduced Wi-Fi bandwidth
  • incompatible with WPA3
  • missing WPS support
  • no USB connectivity

Linksys WRT51AB photos

Linksys WRT51AB / WRT51AB photo
Linksys WRT51AB / WRT51AB

Linksys WRT51AB comparisons

We've noticed that many of our visitors like to compare the Linksys WRT51AB router with these popular models.

Linksys EA8100 Max-Stream Dual-Band WiFi 5 (EA8100) Linksys EA8100 Max-Stream Dual-Band WiFi 5 Linksys WRT120N (WRT120N) Linksys WRT120N Linksys EA9200 Smart Wi-Fi  AC3200 (EA9200) Linksys EA9200 Smart Wi-Fi AC3200 Linksys E8350 Dual-Band AC2600 (E8350) Linksys E8350 Dual-Band AC2600

If there’s information about the Linksys WRT51AB that you would like to see on this site, then write to us.

Robert Miller
For over 15 years, I've immersed myself in the world of networking devices as a tech aficionado. I've dedicated myself to thoroughly testing and analyzing routers and other networking gear. I aim to provide thorough reviews. They will give you the knowledge needed to improve your network.
RouterChart.com / Routers / Linksys / Linksys WRT51AB (2002)