That's a 2x2 device and doing so will limit you to one radio, so 72/150Mbps on 2.4GHz and 433Mbps on 5GHz.
Often you can just run the extra antenna wire along the bottom innards of the laptop instead of up around the screen--that's better than no antenna.
Also consider your present antenna may not be dual-band but 2.4GHz only.
Hey there,
I also am in the process of upgrading my wireless network card. My main goal is for it to support 5ghz. The only two antennas compatible with my laptop (apparently) are
Intel Dual Band Wireless-N 7260HMW AN and
Intel Dual Band Wireless-AC 3160HMW ("HMW" part just means they're Half Mini Wireless cards).
The screenshot below is from the official guide for my HP Probook 450 G1 laptop (the cards with arrows are the ones supporting 5ghz).
Yesterday I opened my laptop's bottom cover and I saw that my laptop only has one antenna cable connected to my wireless network card. There are standard "Main" and "Aux" connectors, but only "Main" is being used. If I understand well, the "Main" is connected to WiFi+Bluetooth combo antenna, and second one (if it existed) would be connected to secondary antenna which is only for WiFi.
- Does that mean that I can't fully utilize 2x2 network wireless card, because I don't have secondary (aux) antenna in my laptop?
- Could this be the reason why my Bluetooth and WiFi have problems working at the same time? Maybe if I had both antennas, when using both Bluetooth and WiFi, the main one would take over the Bluetooth duties, and second one would be used for WiFi, while now the same antenna is used for same thing, which makes them interfere with each other, since they are on the same frequency?
- You say is it possible that the antenna can't "catch" 5ghz signal. Is there a way to find out whether my antenna is dual band or not (like reading some label printed on it which would discover its specs, or something similar)?
- I found those 2 cards (first and second) in AliExpress' fenvi store, which apparently is a reputable Chinese 3rd party manufacturer of network gear. But it says below that it's not compatible with HP laptops. What could be the possible reason to not be compatible, when it clearly says in support for my manual that these are supported network cards? Could it be because they're 3rd party manufacturer not complied with HP, or because they are customized in some way? Or simply because they write "not compatible with HP" just to be safe, because HP is notorious for its strictness when it comes to BIOS not allowing unrecognized NICs?