Wi-Fi WLAN Wireless Network Card Mini PCI-e Card, half size

for Dell Inspiron, Latitude, Precision, Vostro

Standard 802.11 b/g/n; Card dimensions: 27x30 mm

CN: 07KGX9  / Model: 11230BNHMW

Compatible with Windows XP, WindowsWindows 7 and Windows 8;

Functions with  FSC, Asus, Medion, Samsung and Acer notebooks that have PCIe half-size WiFi slot.

What is 802.11 b/g/n? How fast is that? WLAN protocols (just as information for you):

   
At IEEE 802.11b transmits a maximum of 11 MBit/s, sent over a frequency band between 2.400 and 2.4835 GHz.

IEEE 802.11g, on the other hand, already achieves 54 Mbit/s, in the same frequency band as IEEE 802.11b. It is usually perfect

sufficient for Skype , YouTube etc. 
IEEE 802.11n is the fastest standard. It can be used to transmit up to 600 Mbit/s in the b and g frequency bands.

In addition, it is possible to transmit on a frequency of 5 GHz, which suppresses interference more

can (but at the expense of the maximum range)

And something else... FYI: What is “half-size” and “normal-sized”:

It's about fastening...