A:AnswerYes. You can upgrade RAM. There is one stick of 8 GB already inserted. You can add one more or remove existing and add 2 new ones. I checked with two 16GB sticks (total 32 GB). You can also add one more NVME Pcie ssd (M2) or normal 2.5" hdd/ssd. You cannot add both (second NVME Pcie ssd and 2.5" hdd/ssd).
A:AnswerI got one, and it has no wireless (wifi or Bluetooth) card. I contacted HP support via the computer so they could look at the part number, and they confirmed that the WLAN card is "optional"