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Question: Can it stream mkv files directly to ipad without copying it first to the ipad? How much the capacity of the power bank?
Document: It's own battery life and functionality is excellent. We recently travelled with this device on an overseas flight and it was able to seamlessly stream 3 separate pre-recorded high-definition movies/TV shows to my wife and daughter's iPhones and my iPad without so much as a single hiccup. And the battery lasted for well over 5 continuous hours of play before needing to be recharged.
I can stream media or copy any file from SD, USB, and even external HDs to my iPad. And if you read the instructions carefully, you can copy files from the iPad to the MobileLite without any additional software. I can also copy non-standard iPad files like .avi files as well and play them with a 3rd party media player. The only reason I didn't give it 5 stars is because it is a little big and a little slow.
I'm impressed that it's able to power a 1 Tb Seagate Backup Plus USB 3.0 and transfer files. The iPad can't display RAW files, but the MOV and JPG files are no problem. Transferring a large number of files can be a bit tedious though, because the app makes you select files one at a time, although the transfer is done by batch.It also works great to stream movies from the hard drive to my iPad via WiFi. The movies display well and show no signs of hiccups.
A plus is that this device has a battery so one does not need to carry a separate power device. The other big plus IMO  is that I can copy directly from the SD card to the HDD without going through the tablet. This was another key feature for me.So the device does what I wanted it to do! So what's the cons?
I only wanted this for streaming video, I don't have much need for supplemental space for audio or still pics.I  had some trouble with dropped video streams when I first started, but have learned how to stream successfully.This device can stream video well if you follow these tips:1. It is best to watch your video in the same room as your Kingston MobileLite, too far away can cause you to drop the stream. It doesn't seem to have the same range as your average Wireless router.2.
This is a great little thing if you want to travel light and back up data to an external drive without a computer. I'm sure many people use it as extra storage and to stream movies to your tablets or phone. It works, but I could never tell how much juice I had left in it so I didn't do it all that often. I mainly used it as a router of sort to connect between the SD reader and an external USB hard drive. The Kingston MobileLite software can be better.
They allow you to set up the product very quickly and access files as if the devices were connected directly to the product. In that case, there was no connectivity issues whatsoever even using two devices (can support up to three at the same time).The MobileLite Wireless is your go-to product when you need to share files with others without having to copy/paste them into a different folder when they are already on a MicroSD or portable HHD/SSD.
At that point it would seem to be just as easy to read the card or FlashDrive directly using the slots on the computer.The wireless reader generates its own WiFi signal so it can be connected without an external service. It is a portable router and connects with my iPad easily. It can be set so my MobileLite is connected to my iPad and at the same time I can access the Internet. I have no idea how that works, but it does.
First, this reader works both directions (at least on Android devices): you can stream media from your memory cards to your tablet, but you CAN also backup/copy files from your tablet to memory card.
I bought this to stream movies to my iPad. For the first month it worked fine. About a week or so ago Kingston updated the iOS software.Now I can no longer stream any video, nor can i access this over my home network like before.It takes several attempts even to connect to the device successfully.Very disappointed in kingston and surprised.The item is basically useless and I can no longer return it to Amazon.
Answer: Yes. Get the iOS app called Infuse 2 (in-app-purchase required to unlock the feature). It streams to your iOS device beautifully.