The TP-Link Talon AD7200 is unlike any router I’ve used before: it’s the first 802.11ad router that can deliver up to 4.6Gbps Wi-Fi speed on the 60GHz band, while at the same time serving data on the more traditional 5GHz and 2.4GHz bands. That’s three different bands, all operating at once. A first for a consumer router.

OK. So what’s 802.11ad?

In a nutshell, it’s a new Wi-Fi standard that operates on the 60GHz frequency band, has incredibly high ceiling speed — up to 7Gbps, compared with the 1.3 Gbps most users experience today — but extremely short range (about 30 feet at most) and can’t penetrate walls, meaning, devices will only work if they’re within the line of sight of the router. The new standard is meant to supplement the existing 802.11ac, which is slower but has much longer range. So conceptually, all 802.11ad routers will have access to the superfast 60GHz band, but also work as a normal 802.11ac router, which is the standard most routers on the market use today. (For more on the 802.11ad, check out this post.)
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https://www.cnet.com/reviews/tp-link-talon-ad7200-wireless-wi-fi-tri-band-gigabit-router-review/