If your switches support PoE+ (at) power, you are likely all set for the low- to mid-range Wi-Fi 7 APs. Only with the High End models you need PoE++ (bt) power and MultiGig.
For your replacement, I would not go for the 916x anymore. They are great APs, but the 917x are likely longer supported. The 9172 would be the cost-effective solution; the 9176 is expensive, but it's just a great AP. If you can wait a little bit, the 9174 might approach soon. This will likely be the best "general-use" AP.
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