This is an older post, however I just wanted to say; I have made the upgrade, and using both cards without a cable works with crossfire! Thanks guys!
-Gabe
This is the PCIe 1x WLAN card that I use. It is at a pretty good price on newegg, and it works great for me.: http://pcpartpicker.com/part/rosewill-wireless-network-card-rnxn250pce
Thank you! I was looking and I was seeing mixed answers. I thought that my card was the equivalent to a Radeon 7550, and amd says that it does not require a crossfire cable. I guess I am right.
Hi there! I am currently using a graphics card : Gigabyte Radeon R7 250 2GB Video Card (GV-R725O5-2GI) - PCPartPicker , and I am planning on upgrading soon. I want to buy another one of these to crossfire, and on pcpartpicker it claims I can use crossfire (as you could see from the link)...