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ASUS DSL N55U Review | 77 Data compared

Avg. price in UK:~£95Avg. price in US:~$110Wi-Fi version:Wi-Fi 4 (802.11n)Wi-Fi speed:600 MbpsLAN port speeds:1 GbpsMesh Wi-Fi:no

ASUS DSL N55U Review: Compare 77 technical specifications and user reviews to see how this product ranks in the Routers category and whether it is worth buying.

7.1

Overall score

Score
7.1/ 10
✕
What it is
An overall evaluation of the router's quality, based on technical analyses and user reviews.
When it matters
When you need a quick reference to identify the best routers on the market.
Score distribution
â–¼
<55-66-77-88-99-10
â–² Better than 54% of models
Score components

90%

6.9

Technical Score

10%

8.5

User score

â–²Better than 54% of routers
6.9

Technical Score

Technical score
6.9/ 10
✕
What it is
An assessment of the router's technical performance, covering key areas such as Wi-Fi performance, wired connectivity, security, software features, coverage, and design.
When it matters
When you want to compare routers based on technical performance and available features.
Score distribution
â–¼
<55-66-77-88-99-10
â–² Better than 50% of models
Score components

26%

5.1

Wireless

20%

6.4

Ports

18%

9.8

Networking

14%

9.2

Security

12%

5.0

Hardware

10%

6.6

Management

â–²Better than 50% of routers
8.5

User score

User score
8.5/ 10
✕
What it is
A rating that combines user reviews and the total number of reviews received by the router.
When it matters
When you want to know how a router performs in daily use and how reliable it is for speed, coverage, and stability according to user feedback.
Score distribution
â–¼
<55-66-77-88-99-10
â–² Better than 78% of models
Score components

70%

8.6

User reviews

30%

8.5

Popularity

User score:
United Kingdom
amazon
3.5
(245)
United States
Amazon_logo.png
4.4
(1705)

(Reviews last updated: May 2026)

â–²Better than 78% of routers
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Verdict

The ASUS DSL-N55U is an N600 dual-band ADSL2+ modem router featuring simultaneous 2.4GHz and 5GHz wireless bands with a combined theoretical bandwidth of 600Mbps and three detachable 2dBi external antennas. Key hardware includes two independent CPUs for dedicated modem and router processing, four Gigabit Ethernet LAN ports, and two multi-functional USB 2.0 ports that support printer sharing, 3G/4G dongle backup, and DLNA media streaming. Main pros include its 'true two-in-one' design that eliminates the need for a separate modem, high-capacity support for up to 300,000 data sessions, and an intuitive ASUSWRT dashboard for easy setup. However, notable cons include its lack of advanced wireless repeating functions, limited category-based parental filtering, and reports from some users regarding occasional wireless stability or connection drop-outs.

Technical Specifications of router ASUS DSL N55U

Technical Score
Technical score
6.9/ 10
✕
What it is
An assessment of the router's technical performance, covering key areas such as Wi-Fi performance, wired connectivity, security, software features, coverage, and design.
When it matters
When you want to compare routers based on technical performance and available features.
Score distribution
â–¼
<55-66-77-88-99-10
â–² Better than 50% of models
Score components:

26%

5.1

Wireless

20%

6.4

Ports

18%

9.8

Networking

14%

9.2

Security

12%

5.0

Hardware

10%

6.6

Management

6.9
ASUS DSL N55U has a technical score of 6.9 points, which is lower than that of 50.3% of products in this category.
User score
User score
8.5/ 10
✕
What it is
A rating that combines user reviews and the total number of reviews received by the router.
When it matters
When you want to know how a router performs in daily use and how reliable it is for speed, coverage, and stability according to user feedback.
Score distribution
â–¼
<55-66-77-88-99-10
â–² Better than 78% of models
Score components

70%

8.6

User reviews

30%

8.5

Popularity

User score:
United Kingdom
amazon
3.5
(245)
United States
Amazon_logo.png
4.4
(1705)

(Reviews last updated: May 2026)

8.5
ASUS DSL N55U has a user score of 8.54 points, which is higher than that of 77.7% of products in this category.
Popularity
Popularity
8.5/ 10
✕
What it is
An indicator based on the number of reviews received by the router.
When it matters
When you prefer to choose a router reviewed and selected by many other buyers.
Score distribution
â–¼
<55-66-77-88-99-10
â–² Better than 74% of models
Popularity:
ASUS DSL N55U has a popularity score of 8.5 points, which is higher than that of 74% of products in this category.
8.5
ASUS DSL N55U has a popularity score of 8.5 points, which is higher than that of 74% of products in this category.
Ratio quality/price
Value for money
7.9/ 10
✕
What it is
An indicator that combines the router's overall rating with its cost.
When it matters
When you are looking for a router with a good balance between network performance, features, and price.
Score distribution
â–¼
<55-66-77-88-99-10
â–² Better than 54% of models
Score components:

60%

7.1

Overall score

40%

10

Price

7.9
ASUS DSL N55U has a value-for-money score of 7.9 points, which is higher than that of 53.7% of products in this category.
Brand name
Asus
Wi-Fi version
Wi-Fi 4 (802.11n)
Wi-Fi version
Wi-Fi 4 (802.11n)
â–¼ Worse than 61% of models
This router uses Wi-Fi Wi-Fi 4 (802.11n), which is less advanced than 60.8% of routers and equal to 37.3% of routers.
Wi-Fi bands
2.4 GHz + 5 GHz
Wi-Fi bands
2.4 GHz + 5 GHz
â–² Better than 25% of models
This router supports 2.4 GHz + 5 GHz Wi-Fi bands, which are more versatile than 24.8% of routers and equal to 68.1% of routers.
Wi-Fi speed
600 Mbps
Wi-Fi speed
600 Mbps
â–¼ Worse than 67% of models
Market range: <0 Mbps – >6k Mbps
This router delivers 600 Mbps Wi-Fi speed, which is lower than 66.7% of routers and equal to 5% of routers.
Channel widths supported
20 MHz + 40 MHz
Channel widths supported
20 MHz + 40 MHz
â–¼ Worse than 59% of models
This router supports 20 MHz + 40 MHz channel width options, which is fewer than 59.3% of routers and the same as 35.1% of routers.
Show more
Wi-Fi security protocols
WPA2, WPA, WEP, WPS, 802.1X
Wi-Fi security protocols
WPA2, WPA, WEP, WPS, 802.1X
â–¼ Worse than 61% of models
This router supports WPA2, WPA, WEP, WPS, 802.1X Wi-Fi security protocols, which are less advanced than 60.6% of routers and equal to 1.5% of routers.
DoS protection
yes
DoS protection
yes
â–² Better than 13% of models
This router includes DoS protection. 12.8% of routers include DoS protection.
SPI intrusion protection
yes
SPI intrusion protection
yes
â–² Better than 6% of models
This router includes SPI-based intrusion protection. 6.1% of routers include SPI-based intrusion protection.
MAC address filtering
yes
MAC address filtering
yes
â–² Better than 2% of models
This router supports MAC address filtering. 2.2% of routers include MAC address filtering.
URL filter
yes
URL filter
yes
â–² Better than 3% of models
This router supports URL filtering. 3.4% of routers include URL filtering.
Show more
IPv6 support
yes
IPv6 support
yes
â–² Better than 12% of models
This router supports IPv6. 11.5% of routers are IPv6-ready.
Dynamic routing
yes
Dynamic routing
yes
â–² Better than 48% of models
This router supports dynamic routing. 47.8% of routers support dynamic routing.
Inter-VLAN routing
no
Inter-VLAN routing
no
â–¼ Worse than 24% of models
This router does not support inter-VLAN routing. 23.5% of routers support inter-VLAN routing.
VLAN tagging
yes
VLAN tagging
yes
â–² Better than 38% of models
This router supports VLAN tagging. 38.2% of routers include VLAN tagging.
QoS
yes
QoS
yes
â–² Better than 3% of models
This router includes QoS controls. 3.2% of routers include QoS controls.
Show more
N. of LAN ports
4
N. of LAN ports
4
â–² Better than 24% of models
Market range: <0 – >5
This router has 4 LAN ports, which is more than 23.7% of routers and the same as 69.2% of routers.
LAN port speeds
1 Gbps
LAN port speeds
1 Gbps
â–² Better than 27% of models
This router offers 1 Gbps on its LAN ports, which is faster than 27.1% of routers and on par with 59.9% of routers.
N. of WAN ports
2
N. of WAN ports
2
★ Better than 91% of models
Market range: <0 – >5
This router has 2 WAN ports, which is more than 91.4% of routers and the same as 6.2% of routers.
N. of USB ports
2
N. of USB ports
2
â–² Better than 79% of models
Market range: <0 – >5
This router has 2 USB ports, which is more than 79.2% of routers and the same as 20.6% of routers.
Power over Ethernet (PoE)
no
Power over Ethernet (PoE)
no
Category Benchmark
This router does not support Power over Ethernet (PoE). 0.5% of routers can be powered over Ethernet.
Show more
Management interface
Web UI
Management interface
Web UI
â–¼ Worse than 72% of models
This router uses Web UI for management, which is less advanced than 72.2% of routers and equal to 27.3% of routers.
Firmware upgrade method
Web UI
Firmware upgrade method
Web UI
â–¼ Worse than 70% of models
This router supports Web UI firmware update methods, which are less convenient than 69.5% of routers and equal to 29.7% of routers.
Traffic monitoring
yes
Traffic monitoring
yes
â–² Better than 18% of models
This router includes traffic monitoring. 18.1% of routers include traffic monitoring.
Guest Wi-Fi network
yes
Guest Wi-Fi network
yes
â–² Better than 9% of models
This router offers a guest Wi‑Fi network. 8.6% of routers offer a guest Wi‑Fi network.
Captive portal
no
Captive portal
no
â–¼ Worse than 24% of models
This router does not offer captive portal features. 23.5% of routers offer captive portal features.
Show more
CPU clock speed
0.5 GHz
CPU clock speed
0.5 GHz
â–¼ Worse than 78% of models
This router runs at 0.5 GHz, which is slower than 77.8% of routers and on par with 3.2% of routers.
RAM capacity
128 MB
RAM capacity
128 MB
â–¼ Worse than 52% of models
Market range: <0 MB – >1k MB
This router has 128 MB of RAM, which is less than 51.6% of routers and the same as 17.1% of routers.
Internal storage
0.008789 GB
Internal storage
0.008789 GB
â–¼ Worse than 73% of models
Market range: <0 GB – >0.5 GB
This router has 0.008789 GB of internal storage, which is less than 72.7% of routers and the same as 20.6% of routers.
Hardware acceleration
yes
Hardware acceleration
yes
â–² Better than 31% of models
This router offers hardware acceleration. 31.4% of routers offer hardware acceleration.
N. of external antennas
3
N. of external antennas
3
â–² Better than 58% of models
Market range: <0 – >10
This router has 3 external antennas, which is more than 58.4% of routers and the same as 13.3% of routers.
Show more

ASUS DSL N55U vs the average router

246810TotalWirelessSecurityNetworkingPortsManagementHardware
  • Supports automatic failover
    Automatic failover
    yes
    â–² Better than 75% of models
    This router offers automatic failover, while the average router does not. 24.9% of routers offer automatic failover.
  • 285,012 more NAT sessions
    NAT concurrent sessions
    300,000
    â–² Better than 80% of models
    Market range: <0 – >300k
    This router has more concurrent NAT sessions than the average router (300,000 vs 14,988). The average router supports 14,988 concurrent NAT sessions.
    300,000 vs 14,988
  • 1 more USB ports
    N. of USB ports
    2
    â–² Better than 79% of models
    Market range: <0 – >5
    This router has more USB ports than the average router (2 vs 1). The average router has 1 USB ports.
    2 vs 1
  • More advanced integrated modem
    Integrated modem type
    ADSL2+
    ★ Better than 90% of models
    This router uses a ADSL2+ integrated modem, while the average router uses none (external modem required).
    ADSL2+ vs none (external modem required)
  • Removable antennas
    Removable antennas
    yes
    â–² Better than 73% of models
    This router has removable antennas, while the average router does not. 27.4% of routers have removable antennas.
  • Stronger Wi-Fi security
    Wi-Fi security protocols
    WPA2, WPA, WEP, WPS, 802.1X
    â–¼ Worse than 61% of models
    This router supports the Wi-Fi security protocols WPA2, WPA, WEP, WPS, 802.1X, while the average router supports WPA2, WPA, WEP, WPS.
    WPA2, WPA, WEP, WPS, 802.1X vs WPA2, WPA, WEP, WPS
  • 6.8% higher user score
    User score
    8.5/ 10
    ✕
    What it is
    A rating that combines user reviews and the total number of reviews received by the router.
    When it matters
    When you want to know how a router performs in daily use and how reliable it is for speed, coverage, and stability according to user feedback.
    Score distribution
    â–¼
    â–¼
    <55-66-77-88-99-10
    ASUS DSL N55U
    the average router
    ★ Better than 92% of models
    ASUS DSL N55U has a higher user score than the average router (8.54 vs 8.000).
    8.54 vs 8
  • 6.8% higher user score
    User score
    8.5/ 10
    ✕
    What it is
    A rating that combines user reviews and the total number of reviews received by the router.
    When it matters
    When you want to know how a router performs in daily use and how reliable it is for speed, coverage, and stability according to user feedback.
    Score distribution
    â–¼
    â–¼
    <55-66-77-88-99-10
    ASUS DSL N55U
    the average router
    ★ Better than 92% of models
    ASUS DSL N55U has a higher user score than the average router (8.54 vs 8.000).
    8.54 vs 8
  • Stronger Wi-Fi security
    Wi-Fi security protocols
    WPA2, WPA, WEP, WPS, 802.1X
    â–¼ Worse than 61% of models
    This router supports the Wi-Fi security protocols WPA2, WPA, WEP, WPS, 802.1X, while the average router supports WPA2, WPA, WEP, WPS.
    WPA2, WPA, WEP, WPS, 802.1X vs WPA2, WPA, WEP, WPS
  • Supports automatic failover
    Automatic failover
    yes
    â–² Better than 75% of models
    This router offers automatic failover, while the average router does not. 24.9% of routers offer automatic failover.
  • 285,012 more NAT sessions
    NAT concurrent sessions
    300,000
    â–² Better than 80% of models
    Market range: <0 – >300k
    This router has more concurrent NAT sessions than the average router (300,000 vs 14,988). The average router supports 14,988 concurrent NAT sessions.
    300,000 vs 14,988
  • 1 more USB ports
    N. of USB ports
    2
    â–² Better than 79% of models
    Market range: <0 – >5
    This router has more USB ports than the average router (2 vs 1). The average router has 1 USB ports.
    2 vs 1
  • More advanced integrated modem
    Integrated modem type
    ADSL2+
    ★ Better than 90% of models
    This router uses a ADSL2+ integrated modem, while the average router uses none (external modem required).
    ADSL2+ vs none (external modem required)
  • Removable antennas
    Removable antennas
    yes
    â–² Better than 73% of models
    This router has removable antennas, while the average router does not. 27.4% of routers have removable antennas.
  • Limited firmware updates
    Firmware upgrade method
    Web UI
    â–¼ Worse than 70% of models
    This router supports the firmware update methods Web UI, while the average router supports Web UI, App, Automatic.
    Web UI vs Web UI, App, Automatic
  • Older Wi-Fi version
    Wi-Fi version
    Wi-Fi 4 (802.11n)
    â–¼ Worse than 61% of models
    This router uses an older Wi-Fi version than the average router (Wi-Fi 4 (802.11n) vs Wi-Fi 5 (802.11ac)). The average router uses Wi-Fi Wi-Fi 5 (802.11ac).
    Wi-Fi 4 (802.11n) vs Wi-Fi 5 (802.11ac)
  • Weaker management tools
    Management interface
    Web UI
    â–¼ Worse than 72% of models
    This router uses the management interface Web UI, while the average router uses Web UI, App.
    Web UI vs Web UI, App
  • 21.9 W higher power consumption
    Power consumption
    30 W
    â–¼ Worse than 98% of models
    Market range: <3 W – >18 W
    This router uses more power than the average router (30 W vs 8.1 W). The average router uses 8.1 W power.
    30 W vs 8.1 W
  • Narrower channel widths
    Channel widths supported
    20 MHz + 40 MHz
    â–¼ Worse than 59% of models
    This router has a lower supported channel width than the average router (20 MHz + 40 MHz vs 20 MHz + 40 MHz + 80 MHz). The average router supports channel width of 20 MHz + 40 MHz + 80 MHz.
    20 MHz + 40 MHz vs 20 MHz + 40 MHz + 80 MHz
  • Lower CPU clock speed
    CPU clock speed
    0.5 GHz
    â–¼ Worse than 78% of models
    This router has a lower CPU clock speed than the average router (0.5 GHz vs 2x0.5 GHz). The average router has a CPU clock speed of 2x0.5 GHz.
    0.5 GHz vs 2x0.5 GHz
  • 59.3% slower Wi-Fi speed
    Wi-Fi speed
    600 Mbps
    â–¼ Worse than 67% of models
    Market range: <0 Mbps – >6k Mbps
    This router has a lower Wi-Fi speed than the average router (600 Mbps vs 1475 Mbps). The average router reaches Wi-Fi speed of 1475 Mbps.
    600 Mbps vs 1,475 Mbps
  • 1 fewer spatial streams
    N. of spatial streams
    2
    â–¼ Worse than 50% of models
    Market range: <0 – >10
    This router has fewer spatial streams than the average router (2 vs 3). The average router has 3 spatial streams.
    2 vs 3
  • Older Wi-Fi version
    Wi-Fi version
    Wi-Fi 4 (802.11n)
    â–¼ Worse than 61% of models
    This router uses an older Wi-Fi version than the average router (Wi-Fi 4 (802.11n) vs Wi-Fi 5 (802.11ac)). The average router uses Wi-Fi Wi-Fi 5 (802.11ac).
    Wi-Fi 4 (802.11n) vs Wi-Fi 5 (802.11ac)
  • Narrower channel widths
    Channel widths supported
    20 MHz + 40 MHz
    â–¼ Worse than 59% of models
    This router has a lower supported channel width than the average router (20 MHz + 40 MHz vs 20 MHz + 40 MHz + 80 MHz). The average router supports channel width of 20 MHz + 40 MHz + 80 MHz.
    20 MHz + 40 MHz vs 20 MHz + 40 MHz + 80 MHz
  • 59.3% slower Wi-Fi speed
    Wi-Fi speed
    600 Mbps
    â–¼ Worse than 67% of models
    Market range: <0 Mbps – >6k Mbps
    This router has a lower Wi-Fi speed than the average router (600 Mbps vs 1475 Mbps). The average router reaches Wi-Fi speed of 1475 Mbps.
    600 Mbps vs 1,475 Mbps
  • 1 fewer spatial streams
    N. of spatial streams
    2
    â–¼ Worse than 50% of models
    Market range: <0 – >10
    This router has fewer spatial streams than the average router (2 vs 3). The average router has 3 spatial streams.
    2 vs 3
  • No beamforming
    Beamforming
    no
    â–¼ Worse than 57% of models
    This router does not support beamforming, while the average router does. 56.7% of routers support beamforming.
  • 1 fewer WAN ports
    N. of WAN ports
    2
    ★ Better than 91% of models
    Market range: <0 – >5
    This router has fewer WAN ports than the average router (2 vs 1). The average router has 1 WAN ports.
    2 vs 1
  • Limited firmware updates
    Firmware upgrade method
    Web UI
    â–¼ Worse than 70% of models
    This router supports the firmware update methods Web UI, while the average router supports Web UI, App, Automatic.
    Web UI vs Web UI, App, Automatic
  • Weaker management tools
    Management interface
    Web UI
    â–¼ Worse than 72% of models
    This router uses the management interface Web UI, while the average router uses Web UI, App.
    Web UI vs Web UI, App
  • Less capable NAS services
    Built-in NAS services
    SMB, FTP, media server, time machine
    â–² Better than 80% of models
    This router includes SMB, FTP, media server, time machine NAS services, while the average router includes SMB, FTP, time machine, NFS, web access.
    SMB, FTP, media server, time machine vs SMB, FTP, time machine, NFS, web access
  • 21.9 W higher power consumption
    Power consumption
    30 W
    â–¼ Worse than 98% of models
    Market range: <3 W – >18 W
    This router uses more power than the average router (30 W vs 8.1 W). The average router uses 8.1 W power.
    30 W vs 8.1 W
  • Lower CPU clock speed
    CPU clock speed
    0.5 GHz
    â–¼ Worse than 78% of models
    This router has a lower CPU clock speed than the average router (0.5 GHz vs 2x0.5 GHz). The average router has a CPU clock speed of 2x0.5 GHz.
    0.5 GHz vs 2x0.5 GHz
  • 50% less RAM
    RAM capacity
    128 MB
    â–¼ Worse than 52% of models
    Market range: <0 MB – >1k MB
    This router has less RAM than the average router (128 MB vs 256 MB). The average router has 256 MB of RAM.
    128 MB vs 256 MB
  • 93% less internal storage
    Internal storage
    0.008789 GB
    â–¼ Worse than 73% of models
    Market range: <0 GB – >0.5 GB
    This router has less internal storage than the average router (0 GB vs 0.1 GB). The average router offers 0.125 GB of internal storage.
    0.008789 GB vs 0.125 GB
  • 3 older release date
    Release date
    2012
    â–¼ Worse than 65% of models
    Market range: <2k – >2k
    This router is an older model than the average router (2012 vs 2015). The average router release year is 2015.
    March 2012
    2012 vs 2015

Graphic comparison of ASUS DSL N55U and other routers

No results found

Third-party reviews

United Kingdom
amazon
3.5
245 Reviews
United States
Amazon_logo.png
4.4
1705 Reviews

(Reviews last updated: May 2026)

What customers like about ASUS DSL N55U?

  • Excellent dual-band wireless range and signal stability, often covering multiple floors without drops
  • Very easy to set up and configure using the intuitive ASUS-WRT web interface
  • High performance for multitasking due to discrete dual CPUs handling modem and router tasks separately
  • Effective Quality of Service (QoS) features that work well for managing bandwidth-heavy tasks like bittorrent
  • Versatile connectivity with two USB ports for sharing files, printers, or using 3G/4G dongles
  • Does not heat up significantly even during continuous heavy use

What customers dislike about ASUS DSL N55U?

  • Considered expensive compared to other ADSL modem-router combos in its category
  • Occasional stability issues with ADSL synchronization and signal-to-noise (SNR) ratios reported by some users
  • Lack of advanced parental control features like whitelist control or category-based filtering
  • Missing native wireless repeating functions
  • Reported difficulties in successfully configuring IPv6 connectivity despite built-in support
  • Firmware limitations for certain operating systems (e.g., initial lack of Windows 8 support)

Expert reviews

In-depth analysis and verdict from leading tech publications

T
techenclave.com
06/04/2013
Summary of the review
Asus DSL N55U - Reviews and Guides - TechEnclave
G
geek.digit.in
07/04/2013
Summary of the review
Asus DSL-N55U Router Review. - Digit e-Magazine
A
alphr.com
24/06/2013
Summary of the review
Asus DSL-N55U review - Alphr
T
thinkbroadband.com
13/11/2012
Summary of the review
Asus DSL-N55U ADSL2+ Dual-Band Modem/Router Review
C
community.spiceworks.com
27/01/2014
Summary of the review
ASUS Computer International DSL N55U - Networking

Video reviews

Hands-on testing, unboxing, and real-world video evaluations

Compare ASUS DSL N55U with other routers

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