Is power adapter required or can I use the hub without power adapter? I don't have external drives.
443939
I have not attempted to use the hub w/o the power adapter, as I have nine USB components connected to it, including a webcam, two printers, two scanners, turntable, VCR, DVD drive, etc.
443940
You can use it without power. I haven't tried using it with multiple sticks without the power adaptor though.
443941
The unit comes with a power adapter but you don't need to use it. I have a ext HD, wireless mouse/ keyboard combo controller and my UPS USB cable hooked up to it without the power adapter plugged in.
443942
I believe it requires the power adapter for it to attain the USB 3.0 speeds, and it would be required for things like external drives which are not self powered.
443943
While I used it without the power adapter temporarily, I would recommend plugging this in. It will give you better longevity of the device, and it won't use extra power from your computer. I am not entirely sure whether you have external drives is a factor. I assume you are talking about external HDD or DVD drives?
1867066
Do the external drives to be connected to the hub have their own power source? If they are intended to run off of the power of the hub, you may have problems. This is my speculation based on the note under the product description stating the product should not be used with WD passport hard drives. I have several of those, each 1TB, and they run off the power of the hub. Currently, they are plugged into USB 2.0 ports, but they are USB 3.0 compatible products used as "backwards compatible," and run very slowly with USB 2.0, but they run. With USB 3.0, there is evidently a reason they are not supposed to be used. So, I would say it depends on whether the external hard drives have their own power source and, specifically, if they are WD passport drives, the product information I saw said they should not be used with this hub.
259145
In general, I have found that the USB hubs that supply a wall-wart for power to the hub, do indeed NEED the power to the hub.Dick
95052
Yes. The manual clearly states that external power is required at all times. USB 3.0 ports are supposed to provide up to 900 mA, each, so requiring an external power source for hubs is pretty much written in stone. Also, it is worth noting that older computer systems probably do not have USB 3.0 ports built into them. My own laptop is a 2011 ThinkPad, and I had to buy an adapter card to get the support.
352172
The USB hub doesn't need one for most devices, the AC adapter that comes with can also easily be replaced with a universal one you buy locally.I am using it just with the USB power fine.
556682
We are very sorry to hear that you are experiencing an issue with the 10-Port Hub. Is the provided power adapter connected to the hub and are the power switches on the hub in the on position? Try connecting the three external hard drives to the first three ports on the hub (closest to the power source). Please email support@satechi.com for further assistance. Thank you, Satechi Technical Support
1649817
I just tried mine without the power plugged in, and it worked OK with the track ball that is plugged into it. However, I suspect that any device that requires power from the USB bus (like an self-powered hard drive) would NOT work unless the hub itself is powered.
2175037
MANUFACTURER ANSWER: Thanks for asking! You can connect two self powered external hard drives to this hub. This hub will not be able to power two host powered external hard drives. USB 2.0 has limited performance overall, however, you should not see any noticeable drop when comparing this hub to using several USB 2.0 ports directly on your computer.
2123633
None, the systems ships with only the power adapter. I recommend getting a USB 3 Port replicator with/without power.
1255035
The hub can be powered by the AC adapter and or USB. I have one and I use it to dj. It is nice because if my computer looses power my controllers stay on because the hub is plugged directly into the wall. Don't get the USB 1.0 version I have it and it is terible. I went back and bought the 3.0 and it works great. I run a USB powered light of it so the on off switches are nice. Hope this helps.
329623
I have never used it like that myself as my backup drives do not use the usb as a power source. I suppose you could use it that way as long as you use the hubs line power source. Most of the time I do not use the hub's power source as I use it as a conduit from my laptop's usb.
243333
External (non-ssd) drives require a lot of power. You will need to have the power adapter plugged into the card and use at least a 1am power supply. Also if you have other devices plugged into the other port, they consume power as well so you may not be able to turn the external HD unless it has it's own power supply.
259038
i do not recommend buying a USB powered Hub for external drives. Buy the one with external power. The USB powered one will turn off your HD sometimes and it is annoying esp if you are downloading files.
2115001
It includes a micro-usb cord that powers the device from your computer and transmits data from the built in USB hub. You can buy the extra power adapter, but it is not necessary.
556683
For me I found external hard disks worked, but I would get short term disconnects. I replaced my hub with a Anker hub and haven't looked back:https://www.amazon.com/gp/product/B00GSLMTQ8/ref=oh_aui_search_detailpage?ie=UTF8&psc=1
1515292
a good chance you will need a powered usb hub, but otherwise, yes it should. I've not found a laptop usb that can power it without the hub. However, the powered usb hub I have will power it, but only if the hub is not plugged in!!???!! Yeah, but expect some trial and error... good luck
1346696
No, it's intended as a desktop drive, meaning the external power supply is needed. But it's worth checking out LaCie's portable HDs. I have a 250GB Porsche-designed one that's been a workhorse for years.