Welcome to the Dell Community [NAME]  Yes your ports are 2.0. [URL] If you do decide to open the laptop the Intel 6250 would be a good choice. As you have drivers for that model on your Driver Support page. [URL] If you would want 5G and Bluetooth then the Intel 6235 should work. Best regards and good luck, U2
My Vostro 3700 is ten years old (i3) and I am wondering if I can replace the network adapter to get 5g as it now only connects to 2g.  Is this possible to accomplish? Is there any way to do this without opening the laptop which I have never done?  TIA
Vostro 3700 network card