Yesterday I bought this card: Intel Centrino 6235 advanced ( Intel: 6235AN.HMWWB).
Found som standard antenna cables with small connectors and some standard w-lan antennas
The hardest part of the handy-work was to put the combo mPCIE in place on the motherboard, I think and also connect the connectors of the antenna cables on the intel card.
I got Windows Home Premium x64
These drivers I had to install to get it all to work
Intel® PROSet/Wireless Bluetooth Software for IT Administrators (7/23/2013 | Version: All | Latest | Software Applications)
Intel® PROSet/Wireless Software and Drivers for Windows 7* (5/22/2013 | 15.8.0 | Latest | Software Applications)
After this I got one blue screen tring to use the 5kHz, use 2.4kHz now and it works fine.
I also uses Router Asus RT-N66U.
Hope you all get help by this.
I will also keep try the 5kHz in the near future.
CM HAF XB MidTower | Intel i7-4770K | MAXIMUS VI GENE | EVGA GeForce GTX 780 3GB PhysX CUDA | Corsair Dominator DDR3 1866MHz 16GB | 2 Samsung SSD 840 PROSeries 256GB 2.5" | Lite-On DVD±RW Writer | Corsair CX 750M| 2 CM Blade Master 80mm Fan | CM MegaFlow 200 Red LED | CM SickleFlow 120mm Red LED | Combo mPCIe, Intel Centrino 6235 advanced |Asus 24" LED VN247H| Win 7 HP.