Instruction: Answer the given question using the supporting document.

Input:
Question: Can you turn off the 2.4GHz option and run on 5Ghz mode only?
Document: This thing is everything it is advertised to be. It is indeed quite fast. The new AC wireless standard promises great speed but the catch is that it is on the 5GHz spectrum. The 5GHz spectrum, while less prone to interference than 2.4GHz, does not have as good of penetration through walls and other obstructions. The key to getting the most of the tech is to have large fixed antennae like this does. It allows me 10MB/s (that's megabytes, not megabits folks!)
This is a powerful adapter, in fact. I have up to 50 mbytes/sec. in 802.11AC within 10m distance paired with Netgear R7000. 2.4Ghz freq. is also excellent - some 15 mbytes/sec within 20 meters with obstacles.But it has a lot of issues with USB 3.0 ports. The original Amped Wireless driver doesn't work properly - the adapter went off immediately after installation.
If you're without AC and have USB3.0, this is a good option (and the only 802.11AC option for older Macs at this point).
Very impressed.Average speeds:Please note: these are the test results performed by LAN Speed Test software. These are true measurements of the actual throughput.Average rating in mbps for transfer rates in AC mode is around 176-233Mbits/sec. Peaks at 544Mbits/sec The wireless N mode hits around 96Mbits/sec.
Arrived DOA. The unit would not turn on. I wish I has heeded the advice of the other reviewers with the same experience. It is obvious that there are quality control issues with this product.
This is pure BS. It does this every time you call. In addition, it never tells you where you stand in the cue. While waiting I checked out frequently asked questions on their web site and found other people experiencing the same issue. The only advice offered was to turn off your anti-virus software. I don't even have anti-virus loaded on my computer yet. This company cares very little about customer service, and I would highly recommend you not buy from them.
This product is exactly as good as the statistics and specifications employ. It's absolutely perfect. The unit I ordered from newegg failed to turn on, and they instantly gave me a replacement under warranty. The support is stellar, they responded in less than 30 minutes of my inquiry with assistance. And I don't mean I got an automated message; the support personnel Ricardo Concierge #127, actually read my inquiry and responded to my problems. Most of the time companies copy & paste a generic message given stereotypical inquiry constructs.
Using USB 2.0 I Could not get this adapter to work so back it goes.
We bought 2 of these from Amazon and both died. The first unit died within the return period and we replaced it. After the replacement died, we received a refund. We thought we were having unrelated internet issues with the computer the 2nd unit we bought because we bought a new router, but we realized the 2nd unit also died.
This thing doesn't work better than N only AE3000 from my room. AE3000 has 3 internal antennas (this has 2) and despite being N only, if you are a couple of rooms farther away from the router, the 5G (n) connection on AE3000 is more consistent (always stays at 450 mbits). This one was more like 200 mbits.
Answer: Absolutely! Do the following:Right click the network adapter icon on your taskbar>go to "network and sharing">change adapter settings>right click on the ACA1>properties>configure>advanced tab>wireless mode>then change to 5Ghz only