Will this allow for higher (voltage/charge) that comes w/usb 3.0 or will it simply cut the power to equal that of a usb 2.0 port ?
798798
I have not tested on a USB3, however, on a USB2 it does increase the power output enough so I can charge my iPad!
293191
no, it is 5 (FIVE) VOLTS only, not 15 (FIFTEEN).So if you need 15 VOLTS (which I doubt it because all USB 1.0,2.0 and 3.0 can ONLY be 5 VOLTS)If you MISTYPED and it is ONLY 5 VOLTS @ 1.2 AMPS then it WILL work, because the AMPERAGE is how much PUSH the voltage has, so it would charge a 5 VOLTS and do it quicker than 1.2 AMPS, but it does NOT give 3.1 AMPS per USB port, it would max out at 2 AMPS.
237283
Yes that should work, though you would be limited to the power levels delivered by a single USB port.
1421935
Yes, but you need to have two open usb ports, one of them usb 3.0, with the power being plugged into the usb 3.0. USB 2 doesn't provide enough 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.
1934516
No, all USB ports on computers are essentially the same except for the power output. USB 2.0 ports output .5 Amps (500mA) while USB 3.0 ports output .9 Amps (900mA). USB ports that are on AC adapters and phone chargers are capable of outputting much more power.
1357520
The 2.0 port is powered through the 3.0 header. It is divided up in the unit itself. When you hook up the 3.0, the 2.0 will work as well!
302414
A USB port uses a max 500ma of +5vdc power = 2.5 watts. Thanks for using AnswerParty!
2248908
This one has USB 1.1 and 2.0 style connectors. IF your USB 3.0 drive can connect to that, then it probably will. Although I must caution you this product is woefully inaccurate as to current measurements and only works over a narrow voltage range. You would do better with a DVM measuring current.
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
606776
The newer model is actually cheaper for some unknown reason. As far as I can tell that is the only difference since USB 3.0 is backwards compatable with USB 2.0 ports.
2095582
The standard is 500mA for USB 2.0 and 900mA for USB 3.0. Do the math, and you'll see that the power supply doesn't cut it for 24 USB 2.0 and 4 USB 3.0 ports. 24 x 500mA = 12A 4 x 900mA = 3.6A The power supply would need to be 15.6A at 5V. Since the power supply is only 4A at 5V, you're only going to be able to power four USB 3.0 devices (900mA x 4 = 3.6A) OR eight USB 2.0 devices (500mA x 8 = 4A). Perhaps Manhattan should do what Anker does and use a 12V adapter and whatever they do to undervolt/cut down their USB 3.0 9-port hub to 5V per port (that thing comes with a 12V, 5A power adapter! The brick is almost as big as most laptop power bricks!) Using the formula of Volts x Amps = Watts (5V x 15.6A = 78W), we can conclude that at 12V, only 6.5A would be needed (12V x 6.5A = 78W). It's a shame, though, as a 28-port USB hub is cool as all hell, but in practice, it doesn't work right unless you're using all self-powered devices (devices that have their own power adapters).
1063720
USB 3.0 is backwards compatible with 2.0 so in theory it should still work. I can't speak from experience though so I'm not 100% sure it will work.
2168189
USB 2.0 port will remain a USB 2.0 port because of the bus speed. It won't make it 3.0 even if you plug in this hub. Hope this helps.
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?
2265526
Yes! that is exactly what I did, but you will only get USB 2.0 speeds I haven't had any problems with mine.
1541448
Will work with any 2.5 inch drive but not 3.5 because of the voltage difference