How much power does it actually require? It should say on the back of the box. USB port current _._A ???
1456219
The box is plain cardboard; the DVD device itself doesn't say either. However, USB is typically 500mah maximum, and so far I haven't had any trouble using the DVD while the same unpowered hub has 7 other bus-powered devices connected, so it can't be TOO close to the maximum draw or things wouldn't work reliably. Also, there's a warning that if it's not sufficiently powered, burning speed may slow down (not fail), which mine has never done -- I get full speed with everything that reports a speed, and so far zero "coasters". AND NO, THIS DEVICE DOES ***NOT*** REQUIRE TWO CONNECTIONS. It has the ABILITY to take two connections, which is dubious because on MANY USB busses, all ports are actually the same electrical power connection. I have NEVER used the power cable on this drive at all -- Along with the tiny portable size, the single data cable, not needing additional external power, is one of my favorite features!
1456220
It only needs the 2 usb plugs if you have a really old mac or pc if your laptop is only couple years old you'll be fine I run it off one cable using win tablet
1456221
This model requires two usb connections. One for power and the other for data transfer. So it's probably around 500mA.
1456222
It is not listed on the device. wikipedia says "Powered USB is a proprietary extension that adds four additional pins supplying up to 6 A at either 5 V, 12 V, or 24 V." I have a 5V 2 Amp adapter whose connector is too small.Output of the cable reads 5 V. I had to check because I had not heard of 12 V or 24 V in conjunction to USB.
1323540
Steven it is USB powered but comes with a second USB cable to provide extra power if required. In my experience it seems to be needed. Regards John Docherty.
243620
I'm sorry, but I have no clue. The USB plug worked fine for me. Perhaps it is defective.
1727979
It's supposed to need two USB ports to power it.source: http://reviewstash.com/viewtopic.php?id=1046
1016769
I have used two of my USB 3.0 ports to use it. One for power the other for data.
2262000
I think there's one very important point that no one has mentioned: USB 3.0 provides 0.9 amps while USB 2.0 provides 0.5 amps. Keep that in mind. BTW, 3.5" always needs the power adapter; 2.5" USUALLY (not always) is not required.
1899940
Does the USB 2.0 port provide enough power for the external HDD? Or should I make sure to use an external HDD that has its own power source?
1663155
It takes awhile with the regular cord, I bought a stronger wall plug, I believe it was a 10W. Usb with the regular wall plugs don't give as much power.
378948
Actually there isn't a real power output, it is only a TV signal. I put a wattmeter that shows the input power is uses, and got a reading of .5 watts using the 120 volt power supply that comes with it. I have no way of checking what it would consume using the USB plug alone.
1696820
I'm not precisely sure on that. The thing has 2 USB ports. One for Apple devices. The other for anything else. They are stamped "A". And. "NA". The little pamphlet says you'll get full 2.4 on the A port but if you use both at one time the power is divided & I don't remember the exact breakdown
2033938
I usually change it over the night, so I haven't counted the hours. But I guess it probably would take about 3 hours. BTW, the 110V power -> USB adapter is not included.
1611307
The USB port is intended for a memory stick, not for charging, so do not expect much current.
1147651
I can't give you an exact amount but the unit must be plugged into a POWERED USB port and not a regular usb port. Therefore, there would be some minimal battery drain. It is well worth it tho, as I can hear "things" from the computer so much better now.
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
1630451
I can confirm it does not work. The on-board USB port does not provide power.
1127856
It is 3.0. I suspect the box image is from a previous model. Interesting note, the USB connection is split; 1 for USB 3 and 1 for power. If you plug into the USB 3.0 port you do not need to plug in the other connection for power. The USB 3.0 powers it just fine. The extra power connection is for 2.0 connections I believe.
2031445
The Discription says "Plug in to Any USB 2.0/1.1 Interface". Hmmm! Is this just for Power?