Those little nano adapters are great IF
your computer is not too distant, or have too many barriers (walls, floors, ceilings) between the computer and your WAP (wireless access point). But if distance, barriers, or other sources of interference are, or might be a problem, I recommend an adapter with an adjustable exterior antenna.
For PCs, I much prefer Ethernet. But if running a cable to the PC is not practical, I recommend a PCIe Adapter like the Dual Band TP-Link N900
. Dual band helps to avoid congestion. PCIe avoids the hassles that often come with the USB interface. And the exterior, adjustable antennas help ensure the best reception on both ends. And with detachable antennas, you can even position the antennas up high, if necessary.