I have a MK809 android stick. If I use it fairly basically as just the stick with wifi and the airmouse plugged in then it functions fine. My first problem is I seem a little limited by the wifi. No matter which TV I try it on (3 separate areas in the house) I get about 1.8mbps download and 2.1mbps upload. I've downloaded the speedtest.net app which is where I got those results from. My android phone or tablet both get around 15mbps from the same app for download and about the same 2.1mbps on the upload. My main purpose is to use it as a media player, and it is OK with most avi files from my NAS but takes quite a while to start each film. With some it will start stuttering after 5 minutes or so. So I thought I'd try a USB Ethernet adapter, so I got a powered USB hub and plugged the airmouse dongle and the ethernet adapter in. Like this it works but as soon as I try to do anything major it just crashes. From reading this is normal if it runs out of power. I am powering the mk809 from my nexus 7 charger which is 2A and the powered hub is 2A. The only thing I have noticed is that if I turn either power supply off the other device carries on working. ie the hub stays lit up and functioning even if I remove it's power supply, and vice versa the mk809 stays powered via the hub if I turn off the power supply to the mk809. So it should have 4A available but I'm worried that it doesn't quite work like that and that it is only using one of the power supplies at once? Even the speedtest app crashes, it does however shoot up before crashing! Any ideas to make it work?!