Sup guys. So i didnt use my Mac Pro 5.1 for like 1 month, now i turned it on, and the wifi card is dying again. This is the 2nd time this is happening, im so mad. I get 37MS 1.51mbs download and 3.97mbs upload on speedtest. My Macbook air and custom build pc get arround 15 ms, 25mbs download, and 5mbs upload. So i reinstalled drivers and everything but the connection is soooo poor and slow, on windows and mac os x. Since this is the 2nd wifi chip thats dying i asked myself if i could buy one with antennas, where you put them in the PCIE slots. I toke the other card from my custom build which is this one: http://www.pc-ostschweiz.ch/product-2a15316469.htm?parnr=12833327&gclid=CJ-sgqTo3MMCFQEIwwodsxsAaA But it didnt fit, i suppose thats because its PCI right? So i was looking on the internet and found this, its PCIE, so it should work right? I will actually only be using windows on the mac pro. http://www.itronic.ch/de/products/223491?ref=shoprocket Sorry for bad grammar.