Summary: The DWA-556 is a European model NOT covered by U.S. Tech support or warranty through D-Link. Spent hours on hold only to be advised this model is not supported! Vendor shipped product from the U.K. and box clearly states that warranty is not covered in the U.S. (See photo).
Summary: After an hour of trying to install the Cisco-Linksys Wireless-N PCI Adapter with Dual-Band(WMP600N) I called Cisco-Linksys. With NO help there! So I went to Fry's got a D-Link DWA-556 Xtreme N PCI-E & was up and running in 3 mins. All you hear about Linksys these days is how crappy they are.
Summary: Comments about D-link Xtreme N DWA-556 PCI Express Desktop Adapter: I'm using this DWA556 in my Dell Studio-XPS. This seems like the only game in town for a PCI Express x1 card. I first used an external USB wireless-G while waiting for this card to arrive. Took less than 10 minutes to install.
Pros: Easy To Setup, Fast Connection Speed, Reliable connection
Summary: Browsed through quite a few different PCI-E Wireless Adapters and chose this one as I have had reliable D-Link products in the past. The bundled software is pretty annoying, sometimes unresponsive, and randomly just loses connection whilst my other wireless devices are working fine. Signal is ok.
Can work with Windows 7 64bit, but doesn't like mixing with 32 bit if it does
Mr. V. Kapsalis, Amazon
18 April 2011
Summary: I had a whole heap of difficulty with the DWA-556 wifi card which had been causing random crashes of my system (not even BSODs, just straight down), but after quite a lot of technical effort I believe I have nailed the issue.
Summary: No complaints on this end. I see someone complaining about poor signal compared to laptop but I think that's more an issue with their wireless modem/router than this card. I had the same problem (due to my laptop having an in built booster!).
Summary: For the Linux users out there in The Cloud, this D-Link pci-e wireless card works straight out of the box in 64-bit Ubuntu 10.10 (NDISwrapper not needed), and it delivers on its promises: no dropped connections, and increased linespeed as compared with its predecessor, a wireless G adapter.
Summary: Works fine with winxp 32bit and a d-link 2740r. I only run a type N network and this card picks up at full strenght through 2 brick walls with a distance of about 8-10m between pc and router and gives a link speed to the router of 270.0Mbps and has never droped a connection. Update....