Key takeaways
- Buy a tri-band Wi-Fi 6 Deco if your plan is 1 Gbps or less, most of your devices are Wi-Fi 5 or Wi-Fi 6, and you find a clearly discounted X68, X75 or X90. Typical prices are about $150–$400 per 2- or 3-pack depending on model.
- Buy a Wi-Fi 7 Deco if you pay for more than 1 Gbps, have recent Wi-Fi 7 phones or laptops, or want the system to last five or more years.
- Avoid paying full price for the Deco X95. TP-Link lists it as end of life in the US, so firmware and support will taper off.
TP-Link’s tri-band Wi-Fi 6 mesh systems are the Deco X68 (AX3600), Deco X75 (AX5400), Deco X90 (AX6600) and Deco X95 (AX7800). All four use one 2.4 GHz and two 5 GHz radios, so a whole 5 GHz band can carry traffic between nodes. The X90 and X95 have a fast 4×4 backhaul radio and a 2.5G port. The X68 and X75 are cheaper gigabit-class systems. These are older designs now. If you’re buying new in 2026, compare them against TP-Link’s tri-band Wi-Fi 7 Deco models before deciding.
The four tri-band Wi-Fi 6 Decos side by side
| Model | Class | 2.4 GHz | 5 GHz-1 | 5 GHz-2 | Wired ports per unit | Rated coverage |
|---|---|---|---|---|---|---|
| Deco X68 | AX3600 | 574 Mbps | 1,201 Mbps | 1,802 Mbps | Gigabit only | about 5,500 sq ft (2-pack) |
| Deco X75 | AX5400 | 574 Mbps | 2,402 Mbps | 2,402 Mbps | 3 x Gigabit | about 2,900 / 5,500 / 7,200 sq ft (1/2/3-pack) |
| Deco X90 | AX6600 | 574 Mbps | 1,201 Mbps | 4,804 Mbps | 1 x 2.5G + 1 x Gigabit | about 6,000 sq ft (2-pack) |
| Deco X95 | AX7800 | 574 Mbps | 2,402 Mbps | 4,804 Mbps | 1 x 2.5G + 2 x Gigabit | about 3,100 / 6,100 sq ft (1/2-pack) |
Don’t confuse the Deco X75 with the Deco XE75. The XE75 is a Wi-Fi 6E system that swaps the second 5 GHz radio for a 6 GHz radio. It is a tri-band 2.4/5/6 GHz design, not a 5+5 design, and it has no 2.5G port in its base version.
What the numbers mean in practice
Backhaul capacity
In a wireless mesh, the speed at a satellite node is limited by the link back to the main unit. The X90 and X95 can reserve a 4×4, 160 MHz radio rated at 4,804 Mbps for that link. In real homes, that link commonly carries well over a gigabit at short-to-medium range, which is enough to pass a gigabit internet connection through to a satellite. The X68’s 1,802 Mbps band and the X75’s 2,402 Mbps bands are more realistic for plans up to about 500–1,000 Mbps, depending on distance and walls.
Wired speed ceiling
Only the X90 and X95 have a 2.5G port. If your internet plan is faster than 1 Gbps, the X68 and X75 will cap it at roughly 940 Mbps of usable wired throughput. On the X90 and X95, use the 2.5G port for the modem or ONT connection. Using it for backhaul or a NAS only makes sense once WAN speed is covered.
Client speeds
A typical 2×2 Wi-Fi 6 phone or laptop connects at up to 1,201 Mbps on an 80 MHz channel or 2,402 Mbps on 160 MHz. The X75 and X95 offer 2×2 160 MHz radios for clients. The X68 and X90 client-facing 5 GHz band tops out at 1,201 Mbps. That doesn’t matter on most internet plans, but it shows up in local file transfers.
Which tri-band Deco fits your home
| Your situation | Best fit | Reason |
|---|---|---|
| Plan up to 500 Mbps, 2,500–4,000 sq ft, tight budget | Deco X68 2-pack | Dedicated backhaul at the lowest price |
| Plan up to 1 Gbps, many wired devices at each node | Deco X75 | Three gigabit ports per unit and 160 MHz to clients |
| Gigabit or 2 Gbps plan, wireless backhaul, large home | Deco X90 or X95 | 4×4 backhaul and a 2.5G port |
| Multi-gig plan above 2 Gbps | Skip to Wi-Fi 7 Deco | One 2.5G port becomes the limit |
| Ethernet already run between rooms | Any of these, or a dual-band Deco | Wired backhaul makes the third radio less important |
Wi-Fi 6 tri-band vs current Wi-Fi 7 Deco
Wi-Fi 7 Deco systems such as the Deco BE63 and Deco BE85 are tri-band 2.4/5/6 GHz designs with multi-gig ports and support for Multi-Link Operation (MLO). They cost more, but they handle 2 Gbps+ plans much better and can use wide 6 GHz channels for newer phones and laptops. Here is a simple rule:
- Buy a tri-band Wi-Fi 6 Deco if your plan is 1 Gbps or less, most of your devices are Wi-Fi 5 or Wi-Fi 6, and you find a clearly discounted X68, X75 or X90. Typical prices are about $150–$400 per 2- or 3-pack depending on model.
- Buy a Wi-Fi 7 Deco if you pay for more than 1 Gbps, have recent Wi-Fi 7 phones or laptops, or want the system to last five or more years.
- Avoid paying full price for the Deco X95. TP-Link lists it as end of life in the US, so firmware and support will taper off.
Ownership realities
- App-first management: Setup and most settings go through the Deco app and need a TP-Link ID. The local web page offers only basic settings, so power users who want detailed controls may prefer other systems.
- Subscriptions: HomeShield’s basic parental controls and security features are included. Advanced features need a HomeShield Pro subscription.
- Mixing models: Deco units from different generations can generally join the same mesh, so you can add a Wi-Fi 7 unit as the main router later and use an X-series unit as a satellite. The mesh link only runs as fast as the slower unit supports.
- Ethernet backhaul: Supported and worth using where you can. It frees the second 5 GHz radio to serve devices.
- Bridge (access point) mode: Use it if your ISP gateway must stay the router. This avoids double NAT, which can cause problems for gaming and port forwarding.
Placement tips for tri-band Deco nodes
- Put the main unit next to the modem or ONT, as close to the center of the home as cabling allows.
- Place satellites about halfway between the main unit and the dead zone, not inside the dead zone.
- Keep one or two interior walls between nodes at most. In the app, a link quality of “good” or better means the backhaul is healthy.
- Raise units off the floor and away from metal cabinets, aquariums and large mirrors.
- After moving a node, run the app’s optimization so the system can rebalance channels.
Verdict
TP-Link’s tri-band Wi-Fi 6 Decos still do the job they were designed for, which is gigabit-class whole-home coverage over wireless backhaul. The X90 is the strongest buy if you can find it discounted, the X75 is the better value for wired devices at each node, and the X68 is the budget entry point. For new multi-gig setups, or if you plan to keep the system for many years, put the money toward a tri-band Wi-Fi 7 Deco instead.
