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The only thing I regret was not realizing that this was not dual band, only 2.4.
Paired with a D-Link DIR-825 router, the network and sharing center reports my connection speed usually at 300Mbps, occasionally 130Mbps. My Windows 7 Ultimate x64 installation detected this card without me needing to install any drivers. I have an external antenna attached and am about 20 feet through one floor and some ductwork away from the router.
I installed the driver only, and I downloaded it from D-Link's website (I didn't use the one on the CD). The computer is about 40 feet from the DIR-655 in an office (thin walls, one floor), and the connection is great, and I get reasonable speed. I got this to connect a Windows 7 desktop to a DIR-655 (after upgrading, the old D-Link wireless card didn't have a driver). The installation went fine, and Windows was able to connect right away.
I have a wired connection anyway. You would think being this close it would be excellent. I only get a 'good' signal. My laptop across the desk attaches as 'excellent'. I installed this on a new machine with an I7-860 Intel Processor. The machine is only 3 feet away from the G router. It may be because of all the USB ports and wires in the same location.
Who exactly is supposed to be keeping these guys honest, anyway. It's not noticable under most conditions, to be honest, but in case you were wondering about the wild claims from the industry, this is a real world result. But you're still better off wiring your house for speed. I had always thought a 56K modem should get 56K transfers but they never did. It seems wireless N now gets 54K when setup with optimum equipment. At least the 802.11N broadcast signal makes it throughout our house, unlike the 802.11G.
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