Does this unit need AC power to work with 3.5" disks?
1430742
Yes, I have found that it does not work with larger disks without the AC power.
2223106
All 3.5" drives need a 12V power supply. 2.5" (laptop or portable) can be bus powered because they use 5V. A USB port can only provide 5V.
545847
Yes it works. However, this item does not come with a DC in port and therefore it will not support high power consumption device such as 3.5" external HDD.
1219062
Larry is correct about 3.5" drives requiring both voltages. 2.5" drives, however, only require 5V and most spin up with less than 500 mW. It depends on your application. You could check the snr on an o-scope. I have had no issues powering radio equipment.
410951
Almost all 3.5" hard drives require more power(current >1.25A ) than what is defined by USB3.0 committee(standard=0.9A), no 3.5" hard drives please. Good to use with 2.5" hard drives or solid-state drives(SSD).
1519017
I would say No. My 13 Port unit came with a .5A wall adapter, not enough to operate a USB hard drive.
410949
I have tried it, and you are correct. The USB port on your PC or laptop does not provide enough power for this interface (or likely any other) to run a 3.5" drive. It does, however, work even with the double-height 2.5" drives.For a 3.5" drive, you need an interface that has an external power adapter.
1456557
It's not a problem to power an external HD on this USB port. DVD? Sorry, not sure about that. Never tried.
1551587
The device does require external power. It cannot run off of USB or eSATA power alone. So, yes, it does plug into an AC outlet if that is what you are referring to.
2208069
Yes. cannot introduce ac, hiss, hum etc because it is a non- powered passive unit.
2126525
The documentation that was supplied with the drive stated that the 2nd USB was required to provide enough power for the drive to function. There is no AC wall plug on this unit just a VERY SHORT double USB plug. And both have to be used regardless of USB ports 2.0 or 3.0.
2038703
hello, i could respond to the questions being you only sought 3. in my xeperience it is power with sata hard drive and is used for data with use on cd-rw,and dvd-rw on my comercial cpu
778953
Ben, If you're talking about the Sabrent 3.5" SATA/IDE Hard Drive Enclosure / with Fan (I have 2 - work great), the output of the Power Supply is 12V DC at 200ma (Model No. SAW24-120-2000) !HTH,Chuck
717121
I'd have to see a picture of your drive to give you a definite answer. Does your drive have a detachable base containing the USB port and the same AC power connector?
474736
it gives u usb 2 ports. i wouldn't try to run hard disks from these ports, the only power is usb power
1154681
Yes, the unit has a AC power adapter since it is not a USB-powered device. We'll have to verify the amperage of each USB port.
1645217
Don't know why it wouldn't. If ext HD has option for AC power, it certainly will. Well worth a try.