There is a saying in the "Internal Classic": "The solitary Yang does not grow and the solitary Yin does not grow". If only one of the two is taken, everything will disappear. In fact, for all things in the world, "without yang, yin cannot be born, and without yin, yang cannot be transformed" is the truth. For digital products, accessories are effective complements.

For a mobile phone, charging and transmission cannot be realized without the support of data cable; If there is no additional lens, it is difficult to realize the function of macro, wide-angle or fish eye; For any computer, without the expansion of hub, data transmission between multiple USB flash drives cannot be realized. It should be said that with the development of science and technology, more and more accessories are taking the lead in our lives, which can be described as versatile. Just like the "Grandpa Mao" in our hands, although it is not omnipotent, it is absolutely impossible without it.

In Xiao Han's opinion, we can never keep up with the pace of scientific and technological development. New things are "showing off" every day. We can't always try the most exciting and cutting-edge products, at least I am. So I think that if we use a gadget to decorate a traditional or not completely intelligent gadget to achieve the purpose we want, it is the real meaning of Digital Coldplay. Today, Han will also introduce a "gadget" - the D-Link dual band DWA-192 wireless network card that is currently being tried on the free trial platform of Lei Feng's website.

This world's fastest AC1900 3T3R USB 3.0 wireless network card DWA-192, which is advanced by Youxun Technology, has more capabilities than words. In fact, no matter how tall the appearance of the wireless network card is, its essence is its essence. So today, let's focus on its practical experience. After all, no matter how beautiful the appearance is, without practical functions, everything is equal to "zero". From now on, Xiao Han will try his best to show less appearance, so as to show more of its practical functions. I hope my one-sided opinion can bring some objective and true evaluations to everyone, so that I can feel at ease.

The wireless network card is no stranger to everyone. If our laptop wireless network card is broken, it can be fully used, and may even exceed the network card configured by ourselves. In fact, its greater role is to enable our desktops to move freely from now on. As Zhong Zhenyuan, the general manager of D-Link Youxun Technology Taiwan Branch, said, network technology is changing with each passing day, and digital convergence has become the trend. Even wireless devices have gradually upgraded to the fastest 802.11ac, but wireless network cards are always at a level inconsistent with 802.11ac.

In today's environment friendly era, almost all packages are the same, simple and fashionable or colorful, with product introduction and relevant company information printed on the bottom of the box, as shown in the figure below.

D-Link is displayed in a spherical shape and adopts a black and white design as a whole. From the appearance alone, it has subverted the traditional wireless network card and is more like a quality display. It supports 3 * 3 MIMO technology and has two frequency bands of 2.4GHz and 5GHz. The maximum transmission rate in the 2.4 band can reach 600Mbps, and the maximum rate in the 5 band can reach 1300Mbps, which gives us a quick experience and is not fast. Built in 4 antennas are used to strengthen the network connection quality of desktop computers and laptops, and beam forming technology is used to concentrate wireless signals, so that the signal transmission is more accurate and the overall speed is improved.

On the back of the D-Link, there is a USB interface, which is different from our common single port micro USB interface. It uses the currently popular USB3.0 interface, advanced AC SmartBeam technology, which can cover a wider range. It also uses the latest IEEE 802.11ac wireless protocol network. Compared with the 2T2A AC network card, the overall efficiency is improved by 50%, According to the relevant parameters, it is not impossible to experience the experience of Super Fast, but it needs to be further verified by the following data.

On both sides of the 3.0 interface are the switch and the WPS key. The WPS key is used for one key encryption with the network card to simplify the security settings and network management of wifi wireless. With this small button, you can easily, quickly and safely establish a wireless connection without configuring complicated parameters.

There is a waist in the middle of the ball, like a gear for decoration, while above the 3.0 interface, there is a waist LED light bar that can emit blue light. After the network card is connected to the USB interface of the computer, the blue light will continue to flash. After the computer USB is successfully connected to the network card, the blue light will go on straight. We will learn more about it below.

In addition to the attached data cable, the warranty card and instructions are attached.

Xiao Han said before that no matter how high the appearance of things is, if they are not practical, everything is equal to zero. The combination of beauty and practicality is high, which can show a kind of quality. This wireless network card needs to be used with a driver. If your laptop or desktop computer does not have an optical drive, it doesn't matter. There is also a driver download on the official website. As shown in the figure below, after the CD is put into the CD drive, the interface shown in the figure below will pop up automatically (if it does not pop up, please manually, it may be related to personality).

Before testing, we need to have two computers, whether notebook or desktop, and ensure that they are under the same LAN. Ordinarily, this network card is mainly aimed at laptops with broken network cards and desktops without wireless at all. But if your laptop wireless network card is not broken, it's OK to ban the built-in wireless network card. After all, according to the official instructions, the actual performance of this wireless network card is better than the built-in wireless network card. As shown in the figure below, open the D-Link wireless network card and connect it to your local wireless network.

Since this network card supports win7/8/8.1, we take two computers in the win7 system as an example, and ensure that these two computers are in the same LAN, but they have their own IPs. Let's take the following figure as an example, and name one computer (IP 192.168.31.144) that is inserted into the D-Link wireless network card and successfully connected as a hanjery wuxian, and the other computer (IP) that is inserted into the wired network 192.168.31.154) is hanjery, thus entering the testing phase.

We add these two computers to the same homegroup and realize sharing. We share the folder "D-Link 192 Test Folder" on the hanjery wuxian computer and the folder "Test D-Link 192 Wired Folder" on the hanjery computer. The main purpose of setting these two folders is to use a simulated "test. zip file" to measure the transmission speed between the computer using the wireless network card and the computer using the wired network card through the most common method, so as to see whether this network card can really improve the transmission speed as the official said.

When Xiaohan transmits the test data compression package from the USB flash drive to the shared folder of the wired computer through the computer hanjery wuxian, the rate is about 20M per second, while when he transmits the test data compression package through the computer hanjery, the rate is about 10M per second. From such a simple and direct view of the time spent, the D-Link wireless network card is nearly twice as fast in terms of data transmission (the test data may have a slight error), which at least shows that this wireless network card performs well in terms of stability and speed of performance, at least reaching the effect of official publicity.

Let's use the data to do further tests. This time we take a computer as an example. In order to ensure the relative accuracy of the data, Xiaohan used a computer with USB 3.0 interface, Hanjery wuxian, as shown in the figure below, to test the switch between the D-Link network card and the network card carried by him (you can try to switch between different network cards by starting/disabling the switch between different network cards in network sharing), which is a wall between the router and the laptop, The position remains unchanged. Through the software test, it can be found that the signal strength of the D-Link wireless network card is basically maintained between - 45db and - 48db, while the wireless carried by the notebook itself is maintained between - 55db and - 58db. It can be seen that the signal strength will also be appropriately enhanced.

Attachment: D-Link DWA 192 wireless network card video.

Summary

If only from the perspective of appearance, D-Link, which is mainly circular, is more fashionable, not only an accessory, but also an attractive product. However, nowadays, 3.0 has not been fully popularized, especially when most people's laptops and desktops are not completely aging and retired, It remains to be seen whether D-Link's relative advancement can be quickly recognized. After all, only using the 2.0 USB interface can not fully highlight its advantages. Compared with desktops, mainboards can be upgraded through USB 3.0 expanders such as "Orico" at a low cost. However, for laptops, due to the limitation of the layout, the speed of 2.0 USB interface also needs to be further solved; At present, Apple's OS X system also accounts for half of the market. Through personal testing, it is found that it is a pity that the D-Link driver cannot be installed completely. We look forward to better optimizing the driver, so that this wireless network card can be used more widely.