Does anyone know how many mA this thing requires through usb to run? Just by itself, not with other usb devices plugged in. Thank you!
2020599
I think it's 1 could be 2 I'll look later. It comes with a wall plug and wire.
2020600
more than most tv outputs have. I could not find an exact number but in order for it to function properly I had to plug it into a 2.0 amp Samsung galaxy note 3 charger. anything smaller and it would glitch and freeze.
743849
It's worked fine for me. It does charge as running. No problems. I also use it with other USB items.
1489206
Seems to work well when connected to a regular USB port. So far I have not confirmed that any of the USB ports I have used are USB2. I apologize for that. Good luck with finding a definate answer.
214037
Dear Annabelle, Unfortunately, our Premium 4 Port USB Hub is not powered, and will not power an external Superdrive (which is the case with most USB hubs) as they require over 500mA. The total amount of power going to the hub may not exceed 500mA. If you have any other questions or concerns please let us know. Thank you,Satechi Technical Support
629126
I would check with Wagan to be sure, but as near as I know the output from any port is standard USB at 2.1 amps. I hear some Samsung devices have problems due to their proprietary wiring of USB.
325614
Hello Obi,it's strange, i use to switch between 2 pc's and it doesn't take soo long... Which version of usb are you using to connect the switch? Try to plug at a usb 3.0, and see if becames quicker. Free to ask any question, best regards.
1456221
This model requires two usb connections. One for power and the other for data transfer. So it's probably around 500mA.
1650671
All I know is this. It is non-powered hub. Works for multiple flash drives *as many as three have worked at the same time for me*, but if you try external hard drives you will run into difficulty because there is insufficient power from a single USB port to run multiple devices that need more power. t
238806
I recommend you try the 4 port USB 3.0. It requires no external power. However, charging devices through this port is not recommended. I have one and it has worked with everything I have tried in it.
577168
I only use it with external power, but I believe I recall reading that it can not be powered by USB.
1282975
The devices will run only as fast as the 'weakest link in the chain'. I have several USB 3 devices plugged into the Satechi 4 port hub, but my laptop/tablet only supports USB 2.0 and they just run at the slower 2.0 speeds (quite noticeable, but they still work). I tolerate the speed drop. When I upgrade my laptop/tablet to something with USB 3.0 I will benefit from the speed boost then. I am patient if anything. ;)
1362567
Mine died (the USB) and I sent it back for replacement. No problems since. That has been 6 months ago. I think they had some issues that may have been corrected.
639374
I'm not sure how you would actually measure it. I can tell you that they run 10 ASICMiner Block Erupters without issue, so they meet the USB 2.0 spec of 5V/500mA per port. I suspect it would have a hard time with meeting the true USB 3.0 spec of 5V/900mA per port, but it would be close.
539497
I've mostly used it on USB, but from time to time it comes unplugged and I dont notice til days later that it's still running. I've never attempted to use it for 80 continuous hours, but I'd say it lives atleast 60 before it needs a charge.
2202091
Usb is 5Volts with .5A maximum draw. My multimeter won't even measure the current it's drawing so I'm not sure the exact wattage. So by using the above figures... 2.5 watts maximum although I guarantee it's definitely less than that. Hope that helps. The actual unit itself has no power listing so that's all I can figure for that.
1415256
Actually there are such things as dc-dc converters in devices.I have 5v mini/micro usb portable charger that uses a single 1.5v battery.So it can be done.I've also read that the xoom has a menu setting that allows charging via the usb lead.Also Mr Partridge needs to learn that mA means milli-amps. So usb 2 can deliver 0.5A or 500mA.Most phones try to suck out 0.8A (800mA) yes, that is why some USB ports can't charge a device as the phone makers are breaking the usb2 spec. USB3 now has a limit of 0.9A thankfully.
1111843
There are one cable USB to an -Mini USB ( http://en.wikipedia.org/wiki/USB#MINI ) in the packet. Its Powered by the USB, no need for extra power.