Cisco Aironet (AIR-PI21AG-E-K9) 802.11a/g/b Wireless Adapter offers better connectivity especially for networking areas without any mass collection of cables.

It provides satisfied security to its user by WEP Encryption of which the code length is 40 bits and the other coders are WPA, TKIP, LEAP, TLS, PEAP, MS-CHAP, GTC and 802.1 x encryptions.

It offers good performance with 54 Mbps net connection with 2.4 and 5 GHz bands. Though this device can support all the types of configurations like single 802.11 b coverage, single 802.11g coverage, single 802.11a coverage, dual-mode 802.11a/g coverage or tri-mode 802.11a/b/g, it is Wi-Fi compliant. IEEE 802.11a standard is used in wireless local area networking connections and IEEE 802.11g/b standards functioned in wireless.

There are multiple data ranges for different standards existing with this Cisco Aironet (AIR-PI21AG-E-K9) 802.11a/g/b Wireless Adapter. In 802.11a standard the data ratings are 54 Mbps, 48 Mbps, 36 Mbps, 24 Mbps, 18 Mbps, 12 Mbps, 9 Mbps, and 6 Mbps. But in standard 802.11b data ratings are listed as 11 Mbps, 5.5 Mbps, 2 Mbps, 1 Mbps and 802.11g standard contains the data ratings 54 Mbps, 48 Mbps, 36 Mbps, 24 Mbps, 28 Mbps, 12 Mbps, 9 Mbps, 6 Mbps, 5.5 Mbps, 2 Mbps, 1 Mbps.

Apart from the data ratings, there are indoor ranges present inside this adapter. In the 802.11a standard type the indoor range is 50 meter and the outdoor range is 305 meter. In the standard 802.11b/g, indoor range equals to125 meter and the outdoor range can be of 610 meter, and all these tends to increase the functional speed very efficiently.

Cisco Aironet (AIR-PI21AG-E-K9) 802.11a/g/b Wireless Adapter's is an internal adapter and it is PCI interface compatible that gives better linking facility. Operating frequency of this device is 2.4 GHz that promises good speed. This instrument operates under 3.3 Volt.

It has led indicators option for showing the activities to the users. It needs the operating systems like Microsoft windows 2000 and Microsoft windows XP to give better output.

It has an excellent structure with a height of 7.9 cm and its width is 12 cm. The total weight of this product is 97.2 grams only.