Pay attention to the four-point wireless network card purchase is very easy

In the previous article, we introduced some important points to pay attention to when purchasing Wireless AP. When purchasing wireless network cards, you must pay attention to some aspects. The following sections will list four points for your reference. We hope that this article will allow you to avoid detours when choosing a wireless network card.

In addition to Wireless AP or wireless router, you must also select a suitable wireless network card, which is mainly used to receive signals sent by Wireless AP or wireless router. When purchasing a wireless network card, pay attention to the following issues.

Price and brand of wireless network adapter

At present, the price of wireless network cards on the market has been greatly reduced. Generally, the prices of domestic 11 Mbps PCI interface and PCMCIA Interface wireless network cards are roughly 100 ~ Between 200 yuan, the price of similar USB interface wireless network card is generally more than 200 yuan, and the price of similar foreign products is relatively high. In terms of brand, it is recommended that you select well-known Chinese brands such as TP-LINK, D-LINK, and Tsinghua Tongfang, the technical aspects are also more suitable for the domestic network environment.

Interface Type for wireless network card purchase

Wireless NICs are mainly divided into PCI, USB, and PCMCIA. PCI interface wireless NICs are mainly used for desktop computers at the cheapest price. USB interface wireless NICs are plug-and-play and easy to install, the motherboard can be installed and used as long as there is a USB interface, but the price is relatively high. The wireless Nic of the pcmcia Interface is used for laptops, which has the same features as USB. When purchasing a wireless network card, you should select a suitable wireless network card based on the actual situation.

Standard and speed for wireless network card purchase

Common network standards for wireless network adapters are IEEE 802.11b, IEEE 802.11b +, IEEE 802.11a, and IEEE 802.11g. Currently, the IEEE 802.11b standard is the most widely used, the maximum transmission rate is 11 Mbps. the IEEE 802.11b + standard can reach 22 Mbps. The other two standards can both reach 54 Mbps. Generally, the higher the maximum transmission rate, the higher the product price. For common home users, we recommend that you select a wireless network card of 11 Mbps. For home users with higher requirements, you can select a wireless network card of 54Mbps.

Maximum Distance Between Wireless Network Card Purchase

The maximum transmission distance is also an important indicator to measure the performance of the wireless network adapter. The larger the transmission distance, the larger the range of use of the wireless network. At present, the maximum indoor transmission distance of the wireless network card can reach 100 meters, and the maximum outdoor transmission distance can reach 300 meters. When purchasing a product, pay attention that the transmission distance of the product is not lower than the standard value.

It should be noted that the security standards supported by wireless NICs should be considered. Generally, 68/128-bit WEP encryption technology is supported, and some products can reach 256 bits. In addition, there are also some smart wireless desktop boards with wireless features in the market, such as the Asus wireless suite), usually the price is relatively high, users can also consider as needed.