Network speed: MacBook Air and Belkin N1 vision

Hi all,
I have a MacBook Air wireless connected to a Belkin N1 vision which has an Gigabit ethernet connection to a Maxtor Shared Storage II device. From my MacBook Network Utility, I can see my connection is only 130 MBits/second. I'm expecting to see 802.11n speeds but don't seem to be getting them.
Anyone know why?

Apple's notebooks only seem to support the fastest speeds when used with an 802.11n router that supports wide-band at 5GHz. I tried the Belkin N1 Vision and D-Link Xtreme N DIR-655 before I realized this. With both of those routers, my MacBook Pro could only connect at 130Mbps.
Most 3rd party 802.11n routers only support 2.4GHz. Some routers are dual band and support 2.4GHz and 5GHz, but I haven't found one that supports wide-band at 5GHz.
Now I'm using the Airport Extreme Gigabit Base Station, which supports wide-band at 5GHz, and my MacBook Pro connects at 300Mbps. My MacBook Air only seems to connect at 270Mbps for some reason though. Although it's still impossible to transfer data at 300Mbps, I've seen speeds as high as 12MB/s when within 10 feet or so of router, which is about the speed of 100 Base-T Ethernet. I was only able to achieve about half of that with the other routers I've tried.

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dwb
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http://www.tekserve.com/store/networking-cables-adapters/cables-adapters/apple-t hunderbolt-to-firewire-adapter.html
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A new Mac comes with 90 days of free tech support from AppleCare.
AppleCare: 1-800-275-2273
Best.

Network speed: MacBook Air and Belkin N1 vision

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