華碩RT-AC87U正式上市

yuan0715

yuan0715
個人積分：105分
文章編號：51201694

105分

樓主

2014-07-20 15:23

目前國外RT-AC87U已經正式上架
已經有不少網友買回家了

華碩RT-AC87U正式上市

規格

開箱影片
http://youtu.be/nWABCJKaSFE

實測聯外速度看起來可以承受中華300M沒問題

不知道RT-AC87U和RT-AC3200哪個比較快比較實用
好像有MU-MIMO功能的RT-AC87U比較好?

2014-07-20 15:23 發佈

文章關鍵字 RT-AC87U 華碩

yuan0715

yuan0715
個人積分：105分
文章編號：51201716

105分

樓主

2014-07-20 15:25

關於RT-AC3200的介紹

Is this a 802.11AC wave 2 router?

No this is not a wave 2 router. This is a router based on a revised broadcom platform designed to maximize current 802.11AC performance while focusing on heavy 802.11AC client environments.

Does this router support MU-MIMO?

No this router does not support MU-MIMO. For those interested in support of MU-MIMO please consider our RT-87U.

Stay tuned for more information. If you have any questions or comments feel free to send them to PCDIY@ASUS.COM or post in the comments section. As more information becomes available I will update this post.

RT-AC3200 vs RT-AC87U – Don’t Be Confused

the case for buying the AC87U

if your talking about max performance in the home. The 87U will provide a 1700Mbps 5GHZ 802.11AC 4×4 Bridge between the two routers… and if you can get your clients laptops with build in 802.11AC (like the Intel AC7260 card) connected on the 5Ghz you will get 866mbps 2×2 Max connection (until someone releases a 3×3 internal card or USB device then 1300Mbps)

in this case if you have 2-3 older 802.11N or G devices connect them to the 2.4ghz radio with a 40mhz channel if no other networks are nearby (or a 20mhz wil give better throughput if it’s there are lots of other wireless networks around)… my understanding this will NOT slow down your 5Ghz 1300 bridge or 866mbps clients

(if you attempted to connect your 802.11N 5ghz to the existing 802.11AC 5ghz it would slow down your overall network

So why buy the AC-3200

the Speed of this Router is Slower… limited to 1300Mbps 3X3… (you cannot bond for a single 2600Mbps connection) it’s “Tri-Band” meaning in the case above your bridge would be limited to 1300Mbps not 1700mbps but the big advantage is that a slower client would not slow down the rest of your network

so you have all your 802.11AC 5Ghz clients connect to Radio #1 – your 802.11N 5GHZ would connect to Radio #2 and your older 2.4ghz would connect to Radio #3 – so for an office or “mix mode” office this would be a better router..

to make this more confusing some companies like Cisco are introducing 802.11AC routers with 4 physical antennas but still 1300Mbps – the forth antenna is basically used for better reception – but consumers see 4 antennas and think it’s faster.

basically what you want is an 802.11AC routers with the largest channel size like 160mhz vs 80mhz and the greatest # of streams.. take a look at the visual chart below it explains things in more detail – so you want to buy a router with 8 Streams on the 160mhz channel for 6.92Gbps throughput – but this doesn’t exist yet. (if I have said anything wrong in this post… please let me know :-)

http://i146.photobucket.com/albums/r254/maylyn22/ASUS%20RT-AC68U/ofSpatialStreams.png

yuan0715

yuan0715
個人積分：105分
文章編號：51201893

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樓主

2014-07-20 15:42

MU-MIMO vs. XStream

http://www.smallnetbuilder.com/wireless/wireless-features/32451-mu-mimo-vs-xstream-the-coming-battle-for-wi-fi-airtime

看來是高通和博通的兩種技術
不知道哪個才是真的實用

yuan0715

yuan0715
個人積分：105分
文章編號：51202003

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樓主

2014-07-20 15:53

MU-MIMO needs client support. If your client is not capable of doing MU-MIMO, you won't get the MU-MIMO benefits. At this moment, there are no client devices I know of that would support it.

On the other hand, the XStream technology used in the AC3200 routers like the R8000 or the upcoming Asus AC3200 are completely independant of the client. That technology works even with the oldest Wifi clients.

That's why I said earlier that the AC3200 routers might actually be a better choice for most people, because it works out of the box and brings you better throughput for all your devices.

Also note that there are no Wifi clients out there that could make use of the AC87's 4x4 design.

The only situation where the AC87 would bring you an advantage over the prvious models (throughput-wise) right now would be linking two AC87 together in a bridge mode setup. The link between the two would make use of the 4x4 design, e.g. bring the link up to 1750 mbit.

The benefits of the AC87 will only be visible once MU-MIMO and/or 4x4 clients become available.

Of course, as Merlin said, the AC87 is not just about the higher link speed, it also offers some other nice features.

dg4838

dg4838
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文章編號：51204132

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2014-07-20 19:29

yuan0715 wrote:
目前國外RT-AC8...(恕刪)

現階段AC1750以上的規格都是拿出來騙錢用的
因為市面上還沒有廠商推出3 stream以上的網卡
就算有廠商現在推出AC3200也是英雄無用武之地

與其追求規格上的數字迷思，還不如好好守住你的荷包

xup6bjo45j4

xup6bjo45j4
個人積分：272分
文章編號：51207122

272分

6樓

2014-07-20 23:02

yuan0715 wrote:
目前國外RT-AC8...(恕刪)

這有線9百多M以上,上傳8百多也不錯了 100分

看來路由器之戰要準備開始打了

C.DONG

C.DONG
個人積分：701分
文章編號：51208960

701分

7樓

2014-07-21 1:31

RT-AC87U...也太殺啦!看來AP路由器大戰的確有可能要開戰啦!

xup6bjo45j4 wrote:
這有線9百多M以上,...(恕刪)

xup6bjo45j4

xup6bjo45j4
個人積分：272分
文章編號：51208971

272分

8樓

2014-07-21 1:32

yuan0715 wrote:
關於RT-AC320...(恕刪)

關於RT-AC3200的介紹

翻譯:
這是一個的802.11ac波形2路由器？

不，這不是一個波2路由器。這是一個基於修訂博通平台，旨在最大限度地提高當前的802.11ac性能，同時專注於重型802.11ac的客戶端環境的路由器。

這個路由器支持MU-MIMO的？

沒有這個路由器不支持MU-MIMO。對於那些有興趣在支持MU-MIMO的請考慮我們的RT-87U。

請繼續關注更多信息。如果您有任何問題或意見，請隨時向它們發送到PCDIY@ASUS.COM或交在評論部分。隨著越來越多的信息可用，我會更新這篇文章。

RT-AC3200與RT-AC87U - 千萬不要被迷惑

購買該AC87U的情況下

如果你說的是家裡最大的性能。該87U將提供1700Mbps5GHZ的802.11ac4×4橋的兩台路由器之間......如果你能得到你的客戶的筆記本電腦與建設的802.11ac（如英特爾AC7260卡）連接在5GHz的你會得到866mbps2×2最大連接（直到有人發布一個3×3的內部卡或USB設備，然後1300Mbps）

在這種情況下，如果你有2-3個較舊的802.11N或G設備將它們連接到同一個40MHz的通道2.4GHz的無線電如果沒有其他網絡都在附近（或20MHz的西港島線提供更好的吞吐量，如果它的周圍有很多其他的無線網絡）......我的理解，這將不會減慢您的5GHz的1300橋接器或866mbps客戶

如果你試圖給你的5GHz頻段802.11N連接到現有的802.11ac5GHz的它會減慢你的整體網絡

那麼，為什麼買的AC-3200

該路由器的速度比較慢......限於1300Mbps3X3...（你不能結合為一個單一的2600Mbps的連接），它的“三頻”，意思是在上述情況下您的橋樑將被限制在1300Mbps不1700mbps，但最大的優點是，較慢的客戶端不會減慢你的網絡的其餘部分

所以你把所有的802.11ac的5GHz的客戶端連接到電台＃1 - 您的802.11N5GHZ將連接到電台＃2，而舊的2.4GHz將連接到電台＃3 - 因此對於辦公室或“混合模式”的辦公室，這將是一個更好的路由器..

使這更混亂的一些公司，如思科正在推出的802.11ac路由器有4個物理天線，但仍1300Mbps - 第四天線基本上是用於改善接收效果 - 但消費者看到4個天線，並認為它的速度更快。

基本上你要的是一個像160MHz的最大通道尺寸比為80MHz和流的最大＃的802.11ac的路由器..看看的視力表下面的詳細解釋的事情 - 所以你想購買一台路由器與8流上為6.92Gbps吞吐量的160MHz的信道 - 但這還不存在。（如果我說什麼錯在這篇文章中...請讓我知道:-)

http://i146.photobucket.com/albums/r254/maylyn22/ASUS％20RT-AC68U/ofSpatialStreams.png

xup6bjo45j4

xup6bjo45j4
個人積分：272分
文章編號：51208977

272分

9樓

2014-07-21 1:33

yuan0715 wrote:
目前國外RT-AC8...(恕刪)

RT-AC87U個人猜測應該會很天價........ orz

變壓器:19V 2.37A...個人猜主機溫度應該會蠻高的 orz

45.03W功耗.... orz

xup6bjo45j4

xup6bjo45j4
個人積分：272分
文章編號：51209046

272分

10樓

2014-07-21 1:43

dg4838 wrote:
現階段AC1750以...(恕刪)

個人覺得華碩RT-N18U在2.4G Wi-Fi使用上應該很夠用了,
一台無線IP分享器保固三年,中階手機或中階平板大部分都在2.4G,
5G Wi-Fi說實在一點也蠻不實用的,況且換天線距離也可以在遠一些,
RT-N18U用料上真的不輸其他路由器,當初買的2850元真的蠻超值的....
這陣子去買二手RT-N66U想把他賣掉了,不換天線在Wi-Fi還不錯用之下,
換10dbi天線反而2.4G干擾更嚴重.... orz