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Its only possible if the computer is 0.00mm away from the wireless box and in a vacuum with not even air between them.

Basically its only a theoretical speed, you cant ever actually reach it.

150 to 180 MBP/S is the max you'll get.

Things suchs such as radiators near by reduce the speed massively. As do having walls in between you and the Wireless Router, especially walls with pipes in etc.

Using a bluetooth mouse or other bluetooth device near your computer will also slow your wireless speed.

Hell, even the air slows your wireless signal, and im not joking.

http://www.barefeats.com/net80211n.html

http://www.computerworld.com/action/article.do?command=viewArticleBasic&articleId=9019472
 
I've played with a few different 802.11n routers. The only way to achieve a 270 or 300Mbps connection is to get a router that supports 5GHz wide band. I don't know if it's a hardware limitation or a driver restriction, but with Mac notebooks, you just can't take advantage of 2.4GHz wide band, so you'll never get more than 130Mbps.

I learned this the hard way. First, I got the Belkin N1 Vision, and then the D-Link DIR-655, which are both 2.4GHz routers, and I couldn't achieve more than 130Mbps.

At the time, all 5GHz routers were still expensive, so I ended getting the Apple AirPort Extreme and configured it for 5GHz wide band. All of my Macs can either connect at 270 or 300Mbps now. Don't expect to come close to seeing real world transfers at those speeds though. When I'm within a few feet of the router, I've seen speeds as high as 10MB/s, which is only 80Mbps. With a 2.4GHz connection, I think I was able to achieve only 6MB/s (48Mbps).
 
I've played with a few different 802.11n routers. The only way to achieve a 270 or 300Mbps connection is to get a router that supports 5GHz wide band. I don't know if it's a hardware limitation or a driver restriction, but with Mac notebooks, you just can't take advantage of 2.4GHz wide band, so you'll never get more than 130Mbps.

I learned this the hard way. First, I got the Belkin N1 Vision, and then the D-Link DIR-655, which are both 2.4GHz routers, and I couldn't achieve more than 130Mbps.

At the time, all 5GHz routers were still expensive, so I ended getting the Apple AirPort Extreme and configured it for 5GHz wide band. All of my Macs can either connect at 270 or 300Mbps now. Don't expect to come close to seeing real world transfers at those speeds though. When I'm within a few feet of the router, I've seen speeds as high as 10MB/s, which is only 80Mbps. With a 2.4GHz connection, I think I was able to achieve only 6MB/s (48Mbps).

That makes sense. I guess when on 2.4Ghz, Mac notebooks' N card are default to link rate of 130Mbps and when on 5Ghz it default to 270-300.

Also I assume 2.4Ghz is the best compatible when using G/N devices, only N devices use 5Ghz.
 
My Apple Airport Extreme wireless AP gives me ~300Mbps only on the 5GHz band. Not all my devices support the 5GHz band so I have to run on the 2.4GHz.
 
I only achieved 270MB/s when my Time Capsule was two feet away from my laptop.

I moved to a new house and installed the Time Capsule 20 feet away with a few walls in between and was getting sub-100MB/s.
 
I have 5-GHz set up and the signal reception doesn't extend as far I would like it to.

I have a Linksys WRT600N which is dual band and that thing extends far.
 
Just setup my WRT610Nv2, it's dual band but at the same time, not like a lot out there where you select which band you want to use.

On 2.4 I only get 144mbs, switch to the other broadcasting network and I get 300mbps.

I was afraid I wasnt going to be satisfied with this router but I def am happy with the upgrade from my previous crappy router.

Not sure you what you paid but this router which is a $$$ compared to others can be had for around $160. I was looking at a cheaper D-link that seems to do the same as this router but I have bad experiences with D-link routers.
 
I've seen several N routers that offers speed up to 270Mbps/300Mbps when on 2.4Ghz, such the Netgear WNR2000, and LinkSys WRT610N.

I just bought the Netgear WNR2000 myself. According to Network Utility, I'm only getting link rate 130Mbits/s on my C2D MBP and C2D MB. :confused:

I bought i5 MBP (MC700ZP/A) few month and observed same problem with wireless connection at 150Mbps, but I have a NB with Win XP and can get 300Mbps at this time, so I don't understand why the MBP cannot get it?

My Using Router is: TP-LINK WR841ND
http://www.tp-link.com/en/products/prodetail.aspx?mid=010303010101&id=2430
 
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