USB wireless network card purchase skills

With technologies IEEE 802.11 wireless networks mature, improvements in product performance and product prices should be gradually reduced, making more and more businesses, home users have begun to subordinates based on the IEEE802.11 standard for networks wireless.

In the user terminal, while Intel's Centrino laptops have built-in wireless card, and can and latest wireless devices are compatible, but given the lack of Centrino platform for laptops and desktop, select a more appropriate and cost-effective wireless network card Dell Inspiron 6000 battery so that the final product can be quick, easy access to the wireless network of trend has become inescapable. After all, the promotion of less than three years before the Centrino technology, the wireless LAN market, there is still a huge market space.

Interface Analysis

In a wireless network, an important part of the wireless network card can help users to immediately access the wireless network that supports mobile users, temporary workstations, wireless network equipment and shared media, so choose an appropriate wireless card is not an easy matter. And looking at the market for all types of different types of products in the wireless network card is not hard to find, USB interface, wireless LAN, in particular by supporting the USB 2.0 standard is no doubt wireless cards have the higher cost and compatibility.

As we all know, the main market, the wireless card also has a wide range of models, the number of the mark, the price varies in different performance characteristics. Only from the point of view can be divided into three types of interface types - standard based on PCI, PCMCIA type, type USB standard MiniPCI Type CF and SD-kind and in on.Among them, a standard PCI interface, a wireless network card can be used at the desk, PCMCIA interface, a wireless network card can only be used in laptops, while the USB interface, a wireless network card can be used on any computer with a USB interface, that the main advantage of it.If the user wants easy to use, select USB wireless network card can be an excellent choice.

Transfer Rate

Today, USB interface, using mainly two criteria - USB1 .1 and USB 2.0. HP nc8230 battery The rate of the first transfer of 12Mbps, while the latter can be up to 480Mbps. As the wireless transmission protocol also has the highest speed limit, so in order to avoid creating bottlenecks in the market for products using the 802.11b standard used in almost all products USB 1.1 802.11 g uses the USB 2.0 standard. So when a user purchases without having to worry about different standards caused by the addition bottleneck.In speed, the USB adapter connection type can be divided into two categories: one category can be directly connected to the computer's USB interface, this card has the advantage of portability, easy to use, easy bruising drawback is that the card and that through a USB data cable to connect the board and the computer, the advantages of such a card is easy to protect card, nice looking, a disadvantage is that more data lines as a result of interference on the cable.Users according to their own needs to choose the type of card. USB wireless network card at present there are two main forms of occurrence were: type of housing and U-plate. Mesa-based USB wireless cards come with a data extension, most of the antenna exposed, these designs make it easier to put on the desktop. U-disk and USB wireless cards usually have the data to extend the line, and its USB connector can also directly access the computer's USB port, the antenna in the form of U-disk built-in wireless USB card in order to adjust the antenna pointing inconvenience. A comparison, U-disk or the type of card is more compact and convenient.

In selecting the wireless network card, and purchase other wireless devices similar to the first look at wireless standards, wireless standards is to determine the speed and price, the main factor when users purchase a wireless access point based in the choice of data rates to implement faster wireless network card, in general, the higher the price. Meanwhile, the safety factor of the wireless network card is also very important. If your wireless access point supports advanced security features, but the wireless card is not supported, then the high level of security features that do not.Therefore, the user chooses to support security features such as the number of wireless cards. Finally, note that after-sales service and warranty.

Optional Note

When selecting a case of USB wireless network card, we also support the wireless network card Wireless LAN standard to choose. Currently on the market for wireless LAN equipment can be divided into two types of IEEE 802.11b and IEEE 802.11g. Which supported the maximum rate of 11 Mbps 802.11b high card support rate up to 54 Mbps 802.11g standard is 5 times the standard 802.11b, 802.11g Wireless can also support 802.11b compatible, has a higher nature and application, and can protect the investment of card users in the network computers. In addition, Gateway M320 Battery of current 802.11b products in the wireless network card will be in the next period of time, the phasing out of market, so when the payment card you should try to select 802.11g.

Power transmission - USB wireless network adapter is transmitting power for more than 15 ~ 17dBm.The increase in power can be transmitted from the most distant, so try to choose products with a higher transmission power. Manufacturers, especially those that are well known, introduced a new antenna technology, but also can improve the signal coverage of wireless network card for the mobile office and wireless LAN high speed Internet offers new customization options.