Instruction: Answer the given question by extracting information from the supporting document.

Input:
Question: The card reader says it's USB 2. But is the USB port 2 or 3?  One customer said 3.0, but others say its slow?
Document: I had it running as a hub for 7 hours so its battery life seems to be great also. It also can be plugged in to an external power supply when being used as a WiFi hub which makes it's use as a hub non battery dependent. I have not had a USB 2.0 device plugged into it so I'm not sure it would charge that way as that port is set up as a bi-directional port. It connects seamlessly to my PC and Android phone and transfers files in either direction. I used it yesterday to transfer about 300 files from one Android phone to another and it worked great for that as a file server using the SD card and its amazingly fast.
We actually don't care about the battery as much as it working continously.2. Leaving a USB flash drive in the USB port will drain the battery completely, even if the unit is powered off. Either it's trying to "charge" the usb flash drive or the LED that turns on when a drive is connected drains the battery.3. The cover of the SD card slot is very hard to open. I was very tempted to just tear it off because it was so aggravating.For each of these three issues they are either by design or our unit has three defects.
But my disappointment is that an ethernet connection should be faster than the USB 3.0 one for transferring files. However, the ethernet port can't be used for transferring files. The drive does not operate as a NAS drive while connected this way. This isn't really surprising considering the price.One comment on the provided Mac app. When I first installed the app on my Macbook Pro, the app would not connect to the drive. After some major frustration I discovered the problem (not documented) was that my Macbook Pro was ethernet attached to my home network, and I could not have both that connection and the Macally drive connected via WiFi at the same time.
One does not buy a drive enclosure, expecting never to be able to open it, to replace the drive, or to use the drive outside of the enclosure, in a bay or computer for example.This drive enclosure, snaps together and is not meant to ever be opened!Instructions explain that opening the case after it being closed will destroy the case and IT DOES.Furthermore, the transfer speed of the drive with USB 3 cable connected to a USB port, barely tops in the teens. which is about one quarter to one third what the drive did in its previous connection to that very same port via a bay.Finally, every time I connected the drive, it was not possible to eject the drive and I had to shut down the computer to remove the drive.
I don't store documents on this drive because I find that the cloud (I use a few but primarily Dropbox) works for that purpose.The last bit of disappointment is the ethernet port. It would be nice if this port had some real use. However, it serves one purpose and that is to use the enclosure as a Wifi hot spot. You connect the ethernet port to whatever Internet access you have, say in your hotel room when traveling, and you now have a hotspot. Since I already use my iPhone as a hot spot when I travel, primarily to avoid the ridiculous rates hotels charge, I don't see the purpose.
well don't call customer support tech support because they barely speak English um.the software will not find my SD card and I looked at another company software intenso and yet did it was the exact same software. So I will change this bad review if they get back to me with some updated software here is my email address Jerryshawhan@frontier.com
This leaves about 2/3 of the hard drive exposed and looks ugly. But the hard drive can be lifted at the back and removed from the enclosure. You can even take the unused portion of the cover, cut away the snaps and tape the cover on to make the enclosure look better. This would still allow you to remove and replace the hard drive.
This unit far exceeds my expectations from any device. I originally purchased it to transfer files between my PC and Android phone via the SD card which it does fine. I really had no intentions of utilizing it as a WiFi hub. Playing around with it one night I decided to set up the WiFi hub feature also. Now it is even more functional than before. It's compatible with both Apple and Androids and PCs, and while I can't testify to its performance with Apple products I can testify to its performance with Android and PCs, and It's great at least for my usage.
It has an ethernet port, but it appears that this is only for a wired connection to the router. It doesn't appear that you can use it as NAS hooked up to the back of the airport express. It seems to work fine as a USB drive, but way too expensive to use it that way. And it has a propietary connector on the HDD side of the cable. I don't think it would be possible to replace it if you lost it. Overall, I think the thing will probably break within the year.
I had three bits of disappointment with this enclosure. I give the enclosure four stars because it does work the way it is supposed to per their documentation. I can't give it five stars without some improvements.The first disappointment was expected based on other reviews. The enclosure is not made to be reopened. However, the first enclosure I received would not charge. After talking to Macally Technical and Customer support I returned the enclosure and received a new one, which works perfectly. But most important, since I wanted to remove my drive before returning the enclosure, I found that if you are careful you can open the enclosure without breaking it!
Answer: Based on when this was introducer,  I doubt it's USB 3.   If your internal storage is either flash or SD, it really doesn't make much difference whether you have USB 2 or USB 3 port speed - the storage element write speed will be the gateing item.