Notice for beginners: built-in wireless network card

There are many types of wireless network cards. There are many different classification methods based on different perspectives. Then, the next article will introduce you to the built-in wireless network card, the corresponding, there will also be an external wireless network card, the article will be detailed for you.

For laptops, wireless network interfaces have become the standard, but some low-end products do not have built-in wireless network interfaces as required, considering the cost.

◆ Built-in wireless network interfaces

Intel's technology has evolved to the fourth generation, and its built-in laptop wireless network adapter has also evolved from 802.11b and 802.11g to the latest 802.11n.

The latest 802.11n MIMO product provides more Baseband Processing, multiple transmitting and receiving radios at the same time, not only has the 4965AGN wireless network adapter greatly improved the speed compared with the original products, but it has actually increased the coverage and Transmission Performance by two times or more than the 802.11g-the current Mbps wireless vro is not compatible with these cards yet, it can only reach a speed of about Mbps and will be improved in the future), and it is also better in terms of energy consumption.

Wireless Network Card has become a mainstream standard for laptops

The built-in wireless network module consists of a wireless network card and an antenna. In terms of interfaces, the built-in wireless Nic generally uses the Mini-PCI or Mini PCI-ExpressPCI Express Mini Card) slot. The wireless Nic of the Mini PCI interface is the same as the laptop memory, which is smaller than the desktop PCI Card, and has the same performance. Therefore, it is widely used on devices such as the laptop Modem, Nic, and wireless Nic.

However, for now, the updated Mini PCI-Express interface wireless network adapter is replacing the Mini-PCI product. Its size is smaller, only half of the Mini PCI Card size, can better meet the needs of the notebook.

There are two types of PCI Express on the notebook: PCI Express Mini Card and PCI Express Card, it can be seen as a replacement for the existing Mini PCI and CarBus PCMCIA interfaces on the laptop, which has higher transmission performance than the previous operations, PCI Express X1 can achieve a transmission speed of 250 Mb/s. The emergence of such products is more in line with the advent of 802.11n, which can better meet the current 270/300 Mbps of 802.11n and the future transmission needs of 540/600 Mbps.

In addition to providing extremely high data transmission bandwidth, Mini PCI-Express uses serial data packets to transmit data, therefore, each pin of the PCI Express interface can obtain more bandwidth than the traditional I/O standard, which can reduce the production cost and volume of the PCI Express device. In addition, Mini PCI-Express also supports advanced power management, hot swapping, data synchronization, and Bandwidth Optimization for prioritized data transmission.

In terms of compatibility, PCI Express is compatible with the current PCI technology and devices at the software level and supports the initialization of PCI devices and memory modules. That is to say, the current drivers and operating systems do not need to be replayed, the PCI Express device is supported. The use of these slots ensures the scalability of the built-in wireless network card, so as long as you want, the original Mini PCI-Express slots of the three generations of cideos can also upgrade the built-in 802.11n network card.