The role of a wireless network adapter is like other normal network adapters, it is applied to associate the Lan. Wireless network adapter is just a expedient to receive and send signal and it only works in the Wlan. Agreeing to their different ports, wireless network adapters are divided into any types: Pcmcia adapter, Pci network controller, Mini Pci adapter, Usb net card, Cf/Sd net card and so on. And in our daily life we generally use Pcmcia card (only used in laptops), Pci net card (specially used in desktop computers) and Usb network card (available both in laptops and desktop Pcs). Now the most popular broads are Intel, Tp-Link, Fast and Tenda etc, and the main rate is 54M and 108M. But the carrying out of these devices is not all the same, it varies in signal quality, stability and also price.
Signal quality
If you use a laptop, well then it regularly would have a Pcmcia wireless network adapter built-in this machine; if you have a desktop, it's best to choose a wireless Pci network adapter for a best signal quality, because this card has an external antenna; if you highlight the convenience, a wireless Usb network adapter may be more convenient for you, but its signal is not so good as that of the other two cards in the same condition. In a word, without other aids like postponement lines, the signal quality of the Pci card is the best, second is the Pcmcia card and next the Usb card.
Stability
Considering the Pcmcia net card has to supply power when working, it is lacking in heat dispersion. Since the Pci network adapter is inserted in a Pci slot, it has no qoute in power supply, as for its cooling condition, it is also superior to other two cards. Compared with Pcmcia card and Pci net card, the power supply of a wireless Usb network adapter is not so stable, and it is also deficient in heat dispersion.
Price
With the same brand, similar features and on the near dates of launch, a wireless Usb network card is relatively more expensive, and the price of a wireless Pci net card and a Pcmcia card is pretty much the same.
How to pick the Best Wireless Network Card
