With the recommendation of broadband speed reduction and fee reduction, most home users now use the light, and most broadband networks have also achieved high-speed networks of 20M, 50M, 100M, and even Gigabit. For the era of large-bandwidth fiber, in order to experience better network speeds, routers supporting Gigabit and dual-band have undoubtedly become standard. However, there are some fake Gigabit and fake dual-band wireless routers on the market. Many newcomers have accidentally entered the pit. Today, Xiao Bian will teach you how to look at fake Gigabit dual-band routers.
Gigabit wireless router
Gigabit dual-band router how to see true and false?
At present, there are many products that are known as Gigabit wireless routers on the Internet, but the interface of the network card equipped with it is one hundred megabytes. This is a fake gigabit wireless router.
Router NICs must support Gigabit
In addition, there are fake dual-frequency routers. We know that many better routers now support 2.4Ghz and 5Ghz dual-band. A router can transmit two independent WiFi signals to facilitate the connection of wireless devices in different frequency bands, resulting in a better Internet experience.
Dual-band wireless router
Some manufacturers deliberately hide the word “Hz†in 5GHz, and directly mark the 5G band, which makes it easy to confuse with the now-popular 5G concept of mobile communication. Lead consumers think they have purchased a faster 5G router. The real 5G routers have not yet begun commercial use. Consumers must be clear about their concepts and be cautious in entering pits.
It is also worth mentioning that many Gigabit routers have also used the “King of the Wall†slogan. We know that the strength of wireless signals is mainly determined by the transmit power of wireless routers. Wireless routers sold in China should all comply with national standards, ie transmit power no more than 100 μW. The unscrupulous manufacturer's wall-worn king will privately increase the transmission power of wireless routers, instead of starting with signal algorithms to increase signal strength. Excessive emission power will increase the radiation value. Even worse, it will affect the health of users.
For consumers, Gigabit routers look for WAN and LAN ports to support Gigabit, while dual-band phones look for 5Ghz and 2.4Ghz. The 2.4Ghz band wireless rate should reach 300Mbps-450Mbps, and the 5Ghz band should reach 867Mbps. Higher wireless transmission rate. In addition, buy a router to buy brand products as much as possible, so that stability is more secure, not too greedy and cheap, so as not to purchase may shrink or fake gigabit router.
Screen Resolution
There are generally three screen resolutions for office projectors:
One is a 4:3 screen suitable for office PPT playback. The first is the SVGA machine with the lowest price and the highest cost performance. This kind of machine is generally priced at around 2500 and has powerful performance. The disadvantage is that the resolution is 800X600, which is relatively low. The second is the XGA machine, which is an upgraded version of the SVGA machine with a resolution of 1024X768.
The other is the 16:10 aspect ratio screen used by some foreign-funded enterprises, which is the 1280X800 resolution of WXGA. However, with the transparent price of 1080p projectors, more and more companies will choose full HD 1080p projectors as their office projection solutions.
Office Projector Features
According to the needs of different office environments, office projectors are roughly divided into three categories.
One is a conventional projector that is placed or hoisted in the conference room, the second is a Portable Projector that can be carried around, and the third is an ultra-short-throw projector that is convenient for work reports and speeches.
Wireless Office Projector
With the advent of the Internet era, the emergence of a series of wireless office series has added new members to the office projectors. The wireless office projector is realized by the built-in wireless module of the ordinary office projector. Wireless office makes people do not need to switch signal lines frequently in office meetings, allowing people to have a better experience in meetings!
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