Final answer:
A wireless N adapter can be inserted into a USB port, PCI slot, or ExpressCard slot depending on its design. It is not inserted into an Ethernet port, which is used for wired connections.
Step-by-step explanation:
A wireless N adapter can be inserted into different types of slots or ports depending on its design. The common types of wireless N adapters include:
- USB wireless adapters that insert into a USB port on a computer.
- PCI wireless adapters which are installed inside a computer's PCI slot on the motherboard.
- ExpressCard wireless adapters that are designed for laptops and insert into an ExpressCard slot.
However, wireless N adapters do not connect to an Ethernet port; this port is used for wired network connections. So, if you have a wireless N adapter, you would look for one of the first three options based on the type of adapter you have.