Until recently, Wi-Fi speed has always been the "Achilles heel" of the network. Even if you had a fast fiber optic connection, the wireless network struggled to take full advantage of it due to interference and technical limitations.
This changed dramatically with Wi-Fi 6E and now with the revolutionary Wi-Fi 7. For the first time in history, wireless speeds can surpass wired! But here's a huge catch: If you buy an expensive Wi-Fi 7 antenna and plug it into your old house wiring, it'll be like trying to drive a Ferrari on a dirt road.
As engineers, we have to warn you: Wi-Fi 7 changes the demands we have on cables and switches inside the home. Let's see what the new standards bring and what infrastructure you need to "bury" in your walls today to be ready for 2026 and beyond.
It's the first time Wi-Fi has had "new land" to build on. In addition to the 2.4GHz and 5GHz frequencies, it unlocked the 6GHz spectrum. Imagine a new, empty 7-lane freeway, without any interference from the neighbors' Wi-Fi or Bluetooth.
It is the "terminator" of cables. It supports 320MHz wide channels (twice that of Wi-Fi 6) and a technology called MLO (Multi-Link Operation). With MLO, your mobile connects simultaneously to all frequencies (2.4, 5 and 6GHz), offering speeds that theoretically reach 46 Gbps!
For 20 years, "Gigabit Ethernet" (1000 Mbps) was king. All commercial outlets and switches support 1 Gbps. But a Wi-Fi 7 Access Point can easily "serve" wireless data at a speed of 2, 5 or even 9 Gbps to your devices.
If the cable connecting this antenna to your Router is limited to 1 Gbps, then all the super-speed of Wi-Fi 7 is lost. The antenna will be "choked" by the cable itself.
The New Requirement: To take advantage of Wi-Fi 7, your infrastructure must be Multi-Gigabit. This means:
As we saw in the previous sub-pillar, the Cat5e or simple Cat6 cable reaches its limits when we try to pass over 1 Gbps over long distances.
Wi-Fi 7 antennas have multiple processors and multiple antennas. They consume a lot of power, usually requiring PoE+ (30W) or even PoE++ (60W-90W). As we learned, this current produces heat. Cat6a, because of its thicker copper conductors and better insulation, can handle this heat without a drop in data speed.
Wi-Fi 7 is designed to reach 10 Gbps in real-world conditions. Cat6a is the only cable that guarantees this speed over the entire 100m route.
If you're planning your network now, follow these 3 engineering "commandments":
Wi-Fi 7 isn't just a minor upgrade; it's erasing the boundaries between the wired and wireless worlds. To enjoy it, however, you need to invest in the "silent" infrastructure behind the walls. Switching to Multi-Gigabit equipment and using 100% pure copper Cat6a cables is the only guarantee that your home will stay technologically up-to-date for the next decade.
Next Step: We have the right cables and the right antennas. Now we have to decide where to place them. Why is putting the Router on top of the TV stand the worst possible choice?
We continue in the placement guide: Correct Placement of Access Points: Why placement on the ceiling (Ceiling Mount) in the center of the room is always the optimal solution.
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