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TP-Link Archer BE400 vs BE550: Which Wi-Fi 7 Router Fits Your Devices?

The Archer BE400 is dual-band Wi-Fi 7 on 2.4 and 5 GHz; the Archer BE550 adds a 6 GHz band and has four 2.5G LAN ports instead of the BE400's one. Buy the BE550 for compatible 6 GHz clients or several wired multi-gig devices. If your devices use 2.4/5 GHz and one 2.5G LAN port is enough, the BE400 retains the core Wi-Fi 7 and EasyMesh features. Both require compatible client support for MLO benefits, both have a 2.5G WAN, and the sources reviewed do not establish a comparative speed or range winner.

Published by Pickoryx · Published 2026-09-26

Source checked 2026-09-26 04:32 UTC

Products compared

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The buying question

Is the BE550's additional 6 GHz band and four 2.5G LAN ports useful for your clients and wired devices, or does the dual-band BE400 cover your current setup?

The BE550 adds a 6 GHz radio and more 2.5G LAN ports; the BE400 keeps Wi-Fi 7 with 2.4/5 GHz and fewer multi-gig LAN ports. MLO gains depend on compatible client support, and neither proves a measured speed or range win here.

Quick verdict

Choose TP-Link Archer BE400 BE6500 Dual-Band Wi-Fi 7 Router if

  • Your current wireless clients use 2.4 or 5 GHz and you do not need 6 GHz.
  • One 2.5G LAN connection plus three gigabit LAN ports is enough for your wired devices.
  • You want Wi-Fi 7 and EasyMesh but do not have a client confirmed to use BE550's 6 GHz or MLO links.
View TP-Link Archer BE400 BE6500 Dual-Band Wi-Fi 7 Router on AmazonPaid link

Choose TP-Link Archer BE550 BE9300 Tri-Band Wi-Fi 7 Router if

  • You own Wi-Fi 6E/7 clients confirmed to support 6 GHz and want a separate 6 GHz band.
  • You need multiple 2.5G LAN connections for devices such as a NAS, workstation or wired access point.
  • Your Wi-Fi 7 client supports the MLO links the BE550 documents on 6 and 5 GHz.
View TP-Link Archer BE550 BE9300 Tri-Band Wi-Fi 7 Router on AmazonPaid link
When to skip: You need more than 2.5 Gbps of wired internet input; both routers have a 2.5G WAN port. You need a tested comparative speed, latency or whole-home range winner; the public evidence opened here does not establish one. You need a verified exact BE550 aggregate wireless rate; TP-Link's product page and datasheet conflict on the nominal 2.4 GHz figure.
When the recommendation changes
  • Your client device specifications confirm or rule out 6 GHz and MLO support.
  • You add several 2.5G wired LAN devices or an internet plan above 2.5 Gbps.
  • A directly comparable independent test for these exact routers becomes publicly available.
  • TP-Link changes the model hardware, supported bands, ports or firmware behavior for the sold US variant.

The differences that matter

Dual Band Vs Tri Band 6ghz

TP-Link Archer BE400 BE6500 Dual-Band Wi-Fi 7 Router

The US Archer BE400 is dual-band Wi-Fi 7 with 2.4 GHz and 5 GHz; its US datasheet lists no 6 GHz radio.[1, 2, 7]

TP-Link Archer BE550 BE9300 Tri-Band Wi-Fi 7 Router

The US Archer BE550 is tri-band Wi-Fi 7 with 2.4 GHz, 5 GHz and 6 GHz.[3, 4, 8]

What this changes: The BE550's 6 GHz band matters only when a client's hardware and regional settings allow 6 GHz use; older or incompatible clients remain on 2.4/5 GHz. Neither router's Wi-Fi 7 label alone guarantees a practical throughput advantage.[6, 7, 8]

The better fit depends on your priorities

Mlo Client And Band Conditions

TP-Link Archer BE400 BE6500 Dual-Band Wi-Fi 7 Router

TP-Link's BE400 datasheet says its MLO uses 5 GHz and 2.4 GHz links with Wi-Fi 7 clients.[2]

TP-Link Archer BE550 BE9300 Tri-Band Wi-Fi 7 Router

TP-Link's BE550 datasheet says its MLO uses 6 GHz and 5 GHz links with Wi-Fi 7 clients.[4]

What this changes: Before paying for MLO, check that the actual client supports MLO and the intended band combination. TP-Link says client implementations vary; partial support may yield little gain, so no measured MLO advantage is promised for either router.[5]

The better fit depends on your priorities

Wired Port Layout And Wan Limit

TP-Link Archer BE400 BE6500 Dual-Band Wi-Fi 7 Router

BE400 has one 2.5 Gbps WAN, one 2.5 Gbps LAN, three 1 Gbps LAN ports and one USB 3.0 port.[1, 2]

TP-Link Archer BE550 BE9300 Tri-Band Wi-Fi 7 Router

BE550 has one 2.5 Gbps WAN, four 2.5 Gbps LAN ports and one USB 3.0 port.[3, 4]

What this changes: The BE550 suits a setup with multiple 2.5G LAN endpoints; the BE400 has only one 2.5G LAN connection. Both WAN ports are 2.5G, so neither accepts a wired internet connection above that rate at the router WAN.[2, 4]

The better fit depends on your priorities

Mesh Coverage And Comparative Performance

TP-Link Archer BE400 BE6500 Dual-Band Wi-Fi 7 Router

TP-Link lists EasyMesh on BE400. RTINGS has an exact-model BE400 review, but opened public numerical result cells are locked; no direct BE400-versus-BE550 measured result was available in the reviewed sources.[1, 7]

TP-Link Archer BE550 BE9300 Tri-Band Wi-Fi 7 Router

TP-Link lists EasyMesh on BE550. RTINGS has an exact-model BE550 review, but opened public numerical result cells are locked; its separate review does not prove a bilateral BE400 comparison.[3, 8]

What this changes: EasyMesh is a shared feature, but independent speed, latency and range superiority between these assigned models remains unproven from the public results reviewed; choose by verified band/client/port needs instead.[1, 3, 7, 8]

The available evidence does not establish a winner

Best for your routine

Wi-Fi 6E/7 client that must access 6 GHz

Best fit: TP-Link Archer BE550 BE9300 Tri-Band Wi-Fi 7 Router

Based on listed features, not comparative testing.

Only the BE550 has a documented 6 GHz radio. Verify that the specific client supports 6 GHz in its current region before purchase.

View TP-Link Archer BE550 BE9300 Tri-Band Wi-Fi 7 Router on AmazonPaid link

Several wired multi-gig LAN devices

Best fit: TP-Link Archer BE550 BE9300 Tri-Band Wi-Fi 7 Router

Based on listed features, not comparative testing.

BE550 documents four 2.5G LAN ports, compared with one 2.5G LAN port on BE400; either router's WAN remains 2.5G.

View TP-Link Archer BE550 BE9300 Tri-Band Wi-Fi 7 Router on AmazonPaid link

Current clients only need 2.4/5 GHz and one multi-gig LAN endpoint

Best fit: TP-Link Archer BE400 BE6500 Dual-Band Wi-Fi 7 Router

Based on listed features, not comparative testing.

BE400 retains the documented Wi-Fi 7 MLO feature and EasyMesh while covering 2.4/5 GHz; extra BE550 radios and LAN ports do not match this stated setup need.

View TP-Link Archer BE400 BE6500 Dual-Band Wi-Fi 7 Router on AmazonPaid link

What the evidence cannot decide

  • Measured speed, latency or whole-home range winner: Exact-model independent reviews exist, but the public numerical result cells opened here are locked and no direct bilateral result establishes superiority.

Value and trade-offs

One or both observed offers have eligibility conditions, so no unrestricted price difference is shown.

Evaluate any current price difference against a confirmed need for 6 GHz clients or multiple 2.5G LAN devices. Do not pay for a presumed speed or range win that these reviewed sources do not establish.

Not enough reliable history is available for a buy-now or wait recommendation; compare current offers when shopping.

Limitations

  • No public bilateral controlled BE400-versus-BE550 speed, latency or range results were available from the sources opened; no performance winner is claimed.
  • MLO gains depend on client-side Wi-Fi 7 MLO support and the client's supported band combination.
  • Both routers have a 2.5 Gbps WAN port; neither documents wired WAN input above 2.5 Gbps.
  • TP-Link's BE550 US product page and BE550 2.0 datasheet disagree about the nominal 2.4 GHz link rate (574 versus 688 Mbps). No aggregate BE550 rate is used as a decision claim.
  • An independently reviewed retailer variant called Archer BE9300 has a different port description; confirm the product name/ASIN is Archer BE550, not that similarly named variant.

Questions shoppers ask

Can a Wi-Fi 7 phone or laptop use the BE550's 6 GHz band?

Only if that specific device supports 6 GHz and the feature is enabled in its region. A Wi-Fi 7 label alone is not enough; check the client's radio specifications.

Will any Wi-Fi 7 client get MLO speed gains?

No. TP-Link says MLO results depend on client implementation. Confirm the device's supported MLO configuration; the BE400's documented links are 5+2.4 GHz and the BE550's are 6+5 GHz.

Can either router handle a wired fiber plan above 2.5 Gbps?

The documented WAN port on each model is 2.5 Gbps. BE550's extra 2.5G ports are LAN ports for local devices and do not increase its WAN port rate.

Methodology and sources

Compared documented bands, MLO link combinations, Ethernet port roles, WAN limits, EasyMesh support and public independent evidence for the exact US Archer models. Feature differences support conditional recommendations; inaccessible bilateral measurements remain unknown.

Used product-catalog reads and opened public source pages to verify identity and specifications; did not generate performance measurements or use search snippets as evidence.

View 9 sources
  1. 1.Archer BE400 | BE6500 Dual-Band Wi-Fi 7 RouterTP-Link US · Official specifications · Source checked 2026-09-26 04:32 UTC
    Evidence used on this page
    • Overview and wired connections; dual-band speed sections; EasyMesh overview: Identifies Archer BE400 as a 2.4/5 GHz dual-band Wi-Fi 7 router and lists one 2.5G WAN, one 2.5G LAN and three 1G LAN ports; lists MLO and EasyMesh.
  2. 2.Archer BE400 1.0 DatasheetTP-Link · Official specifications · Source checked 2026-09-26 04:32 UTC
    Evidence used on this page
    • Pages 1, 2, 4 and 7: exact BE400 name, 5/2.4 GHz MLO, Ethernet and USB ports: Exact model datasheet identifies 5 GHz and 2.4 GHz bands, MLO link pair, 2.5G WAN/LAN and three gigabit LAN ports, USB 3.0.
  3. 3.Archer BE550 | BE9300 Tri-Band Wi-Fi 7 RouterTP-Link US · Official specifications · Source checked 2026-09-26 04:32 UTC
    Evidence used on this page
    • Overview identifies 6 GHz; 5-port block lists WAN/LAN distribution; EasyMesh section: Exact US Archer BE550 page describes tri-band Wi-Fi 7, 6/5/2.4 GHz operation, five 2.5G ports with one WAN and four LAN, and EasyMesh. The product page's nominal 2.4GHz link rate differs from the linked datasheet, so no combined speed is used.
  4. 4.Archer BE550 2.0 DatasheetTP-Link · Official specifications · Source checked 2026-09-26 04:32 UTC
    Evidence used on this page
    • Pages 1-2, 6: bands, MLO client link pair, Ethernet, USB and EasyMesh: Exact Archer BE550 document lists 2.4/5/6 GHz, MLO between 6 and 5 GHz with Wi-Fi 7 clients, five 2.5G ports (one WAN, four LAN) and USB 3.0. Its nominal 2.4GHz rate differs from TP-Link's current page; no aggregate is claimed.
  5. 5.MLO Network: What It Is and Why Performance VariesTP-Link US Support · Official support · Source checked 2026-09-26 04:32 UTC
    Evidence used on this page
    • Key takeaways and client compatibility sections: TP-Link explains that MLO requires client support and real-world outcomes vary by client implementation; limited support may not yield meaningful benefit.
  6. 6.TP-Link Wi-Fi 7 Router and Deco: Frequently Asked QuestionsTP-Link US Support · Official support · Source checked 2026-09-26 04:32 UTC
    Evidence used on this page
    • Questions 2-3: 6 GHz and Wi-Fi 7 client compatibility: TP-Link states 6 GHz is available only on Wi-Fi 6E/7 devices with suitable hardware; buyers should confirm exact client compatibility. Older clients can still use 2.4/5 GHz.
  7. 7.TP-Link Archer BE400 ReviewRTINGS · Independent testing · Source checked 2026-09-26 04:32 UTC
    Evidence used on this page
    • Model identity and comparison section; public test results section (numerical cells locked): RTINGS has an exact-model Archer BE400 review and classifies it as dual-band 2.4/5 GHz. Public numerical measurement cells opened for this research are locked; no bilateral result or performance winner is claimed.
  8. 8.TP-Link Archer BE550 ReviewRTINGS · Independent testing · Source checked 2026-09-26 04:32 UTC
    Evidence used on this page
    • Model identity, variant note, and comparison section; public test results section (numerical cells locked): RTINGS has an exact Archer BE550 review and discusses 6 GHz/tri-band positioning. It also notes a separate retailer variant branded BE9300 with a different stated port layout; only the exact assigned Archer BE550 identity is used. Numerical comparison against BE400 is not available in the opened public data.
  9. 9.The 6 Best TP-Link Routers of 2026RTINGS · Independent testing · Source checked 2026-09-26 04:32 UTC
    Evidence used on this page
    • Lineup and review methodology; the page lists both exact models and discusses purchase scenarios: Qualitative buyer-interest signal: RTINGS places BE400 and BE550 in the same tested TP-Link router lineup and explains buying by 6 GHz, range, home layout and price tier. This is not search-volume or traffic evidence.

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