There are many kinds of wireless cards. All new laptops have
already built-in WiFi cards. If your build-in WiFi card is not good enough –
the connection is too slow or range is too low or some other reason, there are many
of wireless cards with affordable prices on the market.
Wireless cards for laptop can be:
1) WiFi cards or wireless cards working on 802.11 standards
(802.11a, 802.11b, 802.11g, and
2) Cellular or mobile networks.
With WiFi cards
you are connecting to the wireless access points or WiFi routers in the public
hot spot or in your home wireless network on your own wireless router.
The advantage of Cellular
wireless cards is that you can use them as long as you are within a range
of cellular or mobile network operator, but the problem is the speed which is
usually much lower with them comparing to WiFi cards.
More about this topic read on Wireless Card For Laptop.

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