A:AnswerHello,
No Wifi for the B550M Motherboard.
But don't let that shouldn't bother you!
You can easily find a USB Wifi that are fast, efficient and won't break the bank.
Tp-Link or ASUS USB Wifi can come in at very fast speeds for the cost.
A:AnswerShort answer: follow the recommended power supply on the GPU. APU computers do not need more than 600W.
Long answer: Power supply wattage amount always is based on the CPU and GPU Max wattage + 200-300 watts. For example, 5600X is roughly 150W and a 3080ti is 350W. Therefore you will need at least 700W-800W power supply. Youl will need more wattage if you intend on overclocking.