Routers · Head to head

Asus RT-BE90U vs TP-Link Deco BE77

Full Routers comparison in 2026

Updated October 2026
Data from the official Asus and TP-Link sites.
2026 verdict
Node count is the real split here: the Asus RT-BE90U is the overall pick, a single tri-band Wi-Fi 7 router that costs less than the TP-Link Deco BE77 and comes with a longer warranty.
Asus RT-BE90U
Winner
Asus RT-BE90U
$199.00$239.9917% OFF
The Deco BE77 pushes back with a stronger owner rating and considerably more firepower on paper, a tri-band mesh system built around multiple nodes, ten internal antennas per unit and a 10 Gbps combo port for wired backhaul, which reviewers say shines once you run two or three units in a large home. The RT-BE90U keeps things simpler: one box, its own 6 GHz Wi-Fi 7 radio, and AiMesh support if you ever want to add a node, but with 2.5 Gbps wired ports rather than the Deco's multi-gig backbone. For a single router covering a typical home at a lower cost, go with the Asus RT-BE90U; for a large, device-heavy house you plan to cover with two or more mesh nodes, the TP-Link Deco BE77 is built for that job.
vs
TP-Link Deco BE77
25% OFF
Prime exclusive deal
$299.97
$399.99

Also sold in packs

  • Pack of 218% OFF$449.97$549.99$224.99 per unitYou save $149.97Buy
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FeatureAsus RT-BE90UTP-Link Deco BE77Winner
Price$199.00$299.97Asus RT-BE90U
Warranty3 years2 yearsAsus RT-BE90U
Max Wi-Fi Speed9.4 Gbps17 GbpsTP-Link Deco BE77
LAN 2.5 Gbps RJ45 Ports31Asus RT-BE90U
WAN & FailoverMulti-WAN, WAN FailoverNoneAsus RT-BE90U
USB StorageFTP, Samba, Time Machine, Media SharingFTP, Samba, Media SharingAsus RT-BE90U
Rating4.24.2Tie
Wi-Fi 6E (802.11ax)YESYESTie
Wi-Fi 7 (802.11be)YESYESTie
Mesh Wi-FiYESYESTie
WPA3 EncryptionYESYESTie
LAN Port Count33Tie
Winner
17% OFF
Prime exclusive deal
$199.00
$239.99
  • + Price: $199.00
  • + Warranty: 3 years
  • + LAN 2.5 Gbps RJ45 Ports: 3
  • - Max Wi-Fi Speed: 9.4 Gbps vs 17 Gbps

Frequently Asked Questions

Which is better overall: Asus RT-BE90U or TP-Link Deco BE77?

The Asus RT-BE90U takes the overall verdict, costing less than the TP-Link Deco BE77 and backed by a longer warranty. The Deco BE77 answers with a stronger owner rating and far more mesh-ready hardware for buyers who need multiple nodes.

What is the biggest difference between the Asus RT-BE90U and the TP-Link Deco BE77?

The RT-BE90U is a single standalone router, while the Deco BE77 is a tri-band mesh system designed to run as two or three units, with a 10 Gbps combo port and ten internal antennas per node versus the RT-BE90U's simpler 2.5 Gbps ports and six external antennas.

Does the Asus RT-BE90U support mesh expansion like the Deco BE77?

Yes, the RT-BE90U supports Asus AiMesh so you can add a second Asus unit later, but it ships and is priced as a single router, unlike the Deco BE77 which is built from the ground up as a multi-node mesh system.

Who should buy the Asus RT-BE90U?

Buyers who want one solid Wi-Fi 7 router for a typical home at a lower cost, with the option to add an AiMesh node down the line if needed.

Who should buy the TP-Link Deco BE77?

Owners of large or multi-floor homes who plan to run multiple mesh nodes from day one and want the strongest possible per-node hardware and coverage.

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