They work perfectly for external hard drives that have their own power supply, but using portable 3.0 drives, that rely on power from the usb slot, are hit and miss

Now bachup hard drive works perfectly.

Portable, USB 3.0 hub with optional external power supply -- only needed if you want it to charge devices like an iPhone or iPad; otherwise it is self-powered for things like hard drive or USB stick connections

Removed the hard drive and alexa and it still wouldn't work anymore.

I'm not sure if it's defective, or if my products are too powerful (external hard drives?), but either way, it just shows my externals as having no files except empty folders.

I bought this item and it constantly disconnects my hard drives.

I use it to manage 3 external hard drives which is why the individual power switches are so nice

I would recommend AmazonBasics equivalent product as it can fully power 4 hard drives at the same time.

I've plugged a couple of hard drives at a time into in and it had plenty of power for them.

With the included external power adapter you can run multiple hard drives and even charge from the hub.

It's fine for printers and scanners and peripherals, but I have external hard drives that will not boot properly using it.

Pull the power from the external hard drive.

Bottom line: this product caused me to waste a lot of time, but at least it did not damage my USB drive.

It is just for flash drives and hooking up printers, card readers, cell phone or even a external hard drive

Re-connecting the drive to another USB-2 port on the computer resulted in it being detected, HOWEVER, I don't necessarily blame the Sabrent hub for the initial failure to connect

I chose the version with an external power supply as I am also using an external hard drive

I have an external hard drive that turns on automatically when you just plug in the USB cord

One main concern I had was powering my external hard drive.

It would access the USB port initially but would not maintain connectivity during download/upload with any devices (3.0 flash drives, 2.0 flash drives,Segate external hard drive)

I have hooked up a printer and two external hard drives along with a usb mouse and have had no problems so far.

I use it on a Laptop to connect a compact USB Hard Drive that holds my operating system

Since USB hubs are as inexpensive as they are, I recommend buying this one (that has the external power supply) & a second one that doesn't have a devoted power supply to use during times you are only plugging in multiple "rinky-dink" flash devices & not more power-hungry devices like 2 TB external hard drives

hard drives mounted (500 gig each).

On macOS Sierra, external drives often are slow, and hang or freeze when trying to eject them.

Fast speed, works well withELUTENG External Hard Drive Enclosure 2.5 inch...

When I plug my hard drives into this thing they make a really weird sound almost like they are broken really scared me until I plugged them directly in the computer and they worked fine.

I guess its dangerous to connect hard drives to this hub.

I used this to connect to 2 external hard drives and a wireless transceiver for my keyboard and mouse

If it does recognize the hard drive, it will just eject it for no reason.

The specs say it puts out enough voltage (5.0) to power external mac drives and according to the power requirement on my super drive, it needs 5.0 volts to run but it doesn't work with this hub.

I bought this to take it with me to Africa for transferring images to my portable hard drive using Surface 3

I would plug it in at times to power my 2 external hard drives and still be able to use my external mouse and this thing caused damage to my hard drive because the power supply kept disconnecting

Some external hard drives will not run using this job, even with the AC power plugged in.

Transfer speed when using a thumb drive is considerably slower, so if you're planning on transferring large files (exceeding 3-5GB) this might not be the best choice for you, but for me, I only use it to back up my hard drives occasionally so that isn't a problem

I ordered one of these so that I could use all 4 of my toshiba external hard drives at once.

I am powering a USB muffin fan with it as well as connecting external hard drives.

I have couple of external hard drives and other devices that I only use occasionally

I hook up multiple 4GB hard drives, and select just what I need

The one weakness is that it does not appear to support external hard drives

happy with this item, I have a few hard drives that I can control the power so they are not on all of time

My TV had only one USB port and with my old USB splitter(4 ports), I wan unable to access both my Roku & Hard drive at the same time

Works as expected and no problems when connecting high power usb 3 devices such as single cable external hard drives

Works very well with all my 3.0 backup hard drives

I needed a powered USB hub for my Toshiba portable hard drive

I bought this powered hub so that I could run an external USB hard drive that has problems if it isn't a powered connection.

Run flash drives, external hard drives at same time.

I use one of these as an on/off switch for my external hard drives that does not have a power switch

the drive powers up but never shows up as an available drive

Does not work for 2 external hard drives to transfer data to each other.

doesn't work with multiple portable hard drives.

that is a good way to back some things up to the flash drives or even an external hard drive but not leave them on or at least accessible all the time

Additionally, I came with a power cord for when I need that extra juice to keep all those 2.5" portable hard drives spinning at once

But when I plug both into the hub, I start losing connection to the hard drive even when the external power supply is plugged in

Thankfully I have no need of the 4th port and 2 of the hard drives connected to it have their own power source, connecting another drive won't even connect but just sit there clicking

Have switched between 2 hard drives to date and works well.

I use it primarily to switch on and off an external hard drive and Arduinos

My raspberry pi micro computer doesn't have enough power to run my USB portable hard drive

Although it does work as an extra 4 usb ports it does NOT work with my hard drives even though it says it should on the box.

Used it with my two 2tb and 500gb hard drives for a month and works like a charm

I currently have 4 USB 3.0 hard drives sitting on my desktop in sizes 500 GB, 1 TB, and 2 at 2 TB each

Charging works well for any device I tried and powered my external hard drives with no issues.

When connected and switched on via the hub, the hard drives (even if only one is plugged in) connect and disconnect themselves frequently.

I use this for my home Theater PC's external or portable Hard drives

IT REPLACED AN OLDER ONE THAT WOULD NOT ALOW ME TO USE A PASS PORT EXTERNAL HARD DRIVE

I use it for an AudioBox 22VSL audio interface, along with an external hard drive, a MIDI keyboard, and a wireless mouse

I use it to attach bus powered external hard drives to my MacBook Pro

When I plugged my external drive into the hub and turned on the port on, the drive didn't work

Excellent external hard drive for the Xbox One S

I used it to connect two powered external hard drives to my Mac

Before I had several external hard drives connected to the USB 2.0 ports, in back of the computer, and each time I powered up, they all powered on, now I can just turn the drive on that I am working with...

Other hardware powered by USB (speakers, portable hard drives, cameras) can be powered down when not in use, but need not be unplugged.

I ran a keyboard, a small amazon alexa thing and at times a portable USB 3.0 hard drive.

some other reviews state to use caution with external hard drives anyway due to the momentary power interruptions that can occur if the device gets jiggled and momentarily loose at the usb port going to the

The second reply from Sabrent was "Some devices like hard drives require extra power to be recognized

Does not work with Seagate USB 3.0 Drive

This is absolutely useless if you're planing to use it with your external hard drive as I was hoping to do

Not for hard drives!!!

I did wonder if using it with 2 hard drives caused that failure

I had a hard drive to backup my old laptop computer

Don't need that portable drive spinning all the time, push the button to turn it off!

doesn't support external drives

I ran a keyboard, a small amazon alexa thing and at times a portable USB 3.0 hard drive.

Other hardware powered by USB (speakers, portable hard drives, cameras) can be powered down when not in use, but need not be unplugged.

I'm sitting beside it with all four blue lights on - scanner, printer, and two external hard drives.

It allowed me to connect a portable CD drive to my new Surface tablet

I can also plug in an external hard drive and share it between these two computers

Excellent external hard drive for the Xbox One S

This works perfectly fine under Windows 10, but in Ubuntu 14.04, the hard drives are not recognized

Also, when I used the power adapter, my hard drives would not show up even when only having one turned on

If you're on a table that moves a little bit, if there's any vibrations of any sort, the power supply will slightly disconnect, which is enough to cause a power loss on your hard drives

If you look through the reviews, you'll notice some people have had no problems connecting hard drives, while others have similar issues to myself

Used it with my two 2tb and 500gb hard drives for a month and works like a charm

My raspberry pi micro computer doesn't have enough power to run my USB portable hard drive

Seems like a quality build, but apparently not up to my heavy-duty needs running 3 external hard drives (3.5" and 2.5") and the occasional other gadget

Have switched between 2 hard drives to date and works well.

Not doing so can lead to intermittent drive errors if they power up at all

I have not tried to copy master to slave external USB3 HARD DRIVE

Additionally, I came with a power cord for when I need that extra juice to keep all those 2.5" portable hard drives spinning at once

I'm not convinced this is actually USB 3.0 because none of my USB 3 external hard drives work with this item

I used this as a hub for my Xbox One external hard drives (I have 3) and all 3 work perfectly with no issues

doesn't work with multiple portable hard drives.

When I connect my Western Digital external hard drive, it keeps on disconnecting

I think it powered off while I was transferring files, and damaged my hard drive and made the file system unreadable

I was able to use all the ports for my external hard drive for saving my huge research files, charging my phone and uploading pictures, another usb drive, and charging my kindle without any power overload.

Unfortunately, it will not run my usb super drive on my imac which I am disappointed about as that was the main reason I bought this

I used it to download photos from my camera onto an external hard drive

Purchase to work with Dish DVR for multiple external hard drives since it has its own power source

The reason I bought a powered usb hub was to be able to connect external hard drives to my imac without reaching behind the computer and pulling one of the usb cords out and connecting the external drive just to transfer some data

Then I noticed my hard drive disconnecting every once in awhile

I needed a powered USB hub for my Toshiba portable hard drive

Unfortunately for me, I bought this to attach a pair of self-powered external 3.5" hard drives.

The power supply definitely helps for external hard drives

LG Portable Super Multi Drive (GP10NB20), Sandisk Cruzer Ultra Fit (64 GB), Sandisk Cruzer (16 GB), Sandisk Cruzer (512 MB), Lexar 4 GB, Kodak 8 GB, Transcend USB 3.0 SD card reader

happy with this item, I have a few hard drives that I can control the power so they are not on all of time

this is likely less of an issue if you keep your computer and devices stationary on your desk.as this device enable me to free up a usb port, i can work around this, but wanted to mention it for those thinking they can use it for usb external hard drives, YMMV.

Plugged my Seagate external hard drive into it and it will not stay recognized by my Surface Pro 3 - which I assume is due to not enough power

The one weakness is that it does not appear to support external hard drives

Computer Techs recommend installing a USB card to a PC when powering large external hard drives

This allowed me to plug in multiple portable usb 3.0 hard drives into one slot, and make sure they are all powered

Wanted to be able to run multiple hard drives for backing up pictures, videos and a laptop computer

I am powering a USB muffin fan with it as well as connecting external hard drives.

Wireless mouse, (ii) 2TB external hard drive, (iii).

Pros: good construction qualityCons: only runs at USB-2 speeds, tested on several computers with different usb3 hard drives and flash drives

Exactly what I needed to connect external hard drives to my Surface Pro 4.

Amazing, I was able to hook up my different external hard drives without any problems

I bought this to take it with me to Africa for transferring images to my portable hard drive using Surface 3

Very useful when attempting to recover data from a dying drive, or a failing thumb drive.

I didn't want it to run on low power, which can damage the drive.

I plan to use it to transfer files from my external hard drive to my phone and tablet.

I hooked up 2 external hard drives to it

I use it on a Laptop to connect a compact USB Hard Drive that holds my operating system

Was able to connect 4 portable 500gb hard drives to my Roku 3 USB Port for maximum video entertainment.

, so i feel better just plugging my hard drive straight to the usb port now freed up

the wireless keyboard and the wireless mouse dongle to connect and then the external hard drive and an extra monitor

Eventually, I noticed that the drive never gave me a problem when plugged directly into my PC's USB port

Configure the OS (Win10) to not power down hard drive when idle2.

I use it with my Raspbbery Pi and USB hard drive as a music server

Tried using it with two external hard drive at one time and it required the power adapter to work

I still cannot use my external hard drive

- External hard-drives should be connected to an external power source.

I'm not sure if it's defective, or if my products are too powerful (external hard drives?), but either way, it just shows my externals as having no files except empty folders.

However, the big issue I have is the following: I tried my three external USB 3 Hard Drive with it on my two Window 10 computers

Even though my hard drives have their own power sources, I bought the hub that has its own power supply to be on the safe side.

Don't expect to connect multiple usb powered hard drives to it

I'm using this to connect multiple external hard drives to my laptop at my desk

I tried using the hub with a 4 TB Western Digital hard drive which then crashed (it took about 20 hours to restore the data).

It works for me allowing a USB hard drive to work with a dish receiver.

With this powered hub I can work with both the hard drive and other USB devices simultaneously

I am a photographer and use multiple portable USB drives for backup

At first I thought it was an old webcam or a bad hard drive causing USB issues.

They work perfectly for external hard drives that have their own power supply, but using portable 3.0 drives, that rely on power from the usb slot, are hit and miss

I bought this one specifically because I had the portable drive option and because of the size

Half the time the hard drive didn't even read.

If you are trying to use more than one external hard drive with your Surface Pro, this port is ideal.

Using external hard drives with this unit will make you want to pull your hair out

If you have something "important" on there like a hard drive and decide to plug in your iPhone in the port next to it, you will probably turn off your hard drive.

I tried to transfer a zip file from my desktop to a hard drive hooked up to this hub and it took forever and ever

Otherwise, the individual power switches work extremely well and the powered hub lets you use multiple external hard drives.

It certainly is worth the cost of this little device if you have data on hard drives you think are bad and not working

Bought this for my Xbox One to plug my hard drives into so I could free up a USB port for the Kinect

Great, powers my external hard drive as needed

As with most USB powered hubs (i.e. when not using its own power source) transferring between multiple attached USB powered hard drives will often fail due to power limitations, generally manifesting as one or more device becoming disconnected from a PC.The fact that this comes with a power supply to keep working solidly is why I purchased this over other non-powered USB hubs.

Works as it says it does, a very useful usb hub for usb flash drives and external hard drives, with the added power from the plug in theses no worry of a power drop.

If you're looking to attach hard drives, however, be aware it might be hit-or-miss.

Did not work with solid state external drive.

The product worked well for my WD external hard drives.

doesnt work with multiple hard drives.... would offload the Drives in the middle of use.... very inconvenient

I have seen no problems on my Windows 10 laptop in having a thumb drive, a printer, a scanner, and an external hard drive all hooked up and active at the same time.

Cannot fully power 4 usb 3.0 2.5in hard drives

I have used this to power portable external hard drives with my 17" Macbook Pro 2011

Can't get anywhere 1/4 of the speed with the hard drive connected directly to the usb 3.0 port

I should note that I purchased the USB Hub with the power supply as I have an attached external hard drive.

Do get the power supply even if you don't expect to need it now, later on you probably will need the extra boost it gives making things more stable, not needed with simple flash drives but will b with hard drives etc.

And I definitely could not connect two usb 3.0 portable hard drives, as then it would have required even more power

Since the pi does not have enough juice to power more than 1 hard drive, this is a must for anyone looking to have multiple drives attached.

Currently there are only 2 hard drives connected to the device and it functions flawlessly.

Also great for portable hard drives that I only periodically use

I needed to do this as my most recent PC did not have enough power to support 2 external disk drives and an external CD player simultaneously

Has worked very well but there is an issue where the portable hard drive disappears

Connect hub to computer and peripherals (I have 2 portable hard drives, headphones, and lightning cable hooked to the hub).

Ordered a couple so my Surface table would support a WD external drive for doing backups

Confidential data on a hard drive is vulnerable to hackers whenever my computer is on, but not if it is on a flash drive that is disconnected (switched off).

The previous 2 that went bad were causing a backup to 2 external USB 3.0 drives to hang

The on/off switch provides protection for your hard drive when you need to remove it as most drives these

but then Power Off, and my external hard drive goes back to sleep

The Sabrent 4 port doesn't take up too much space, allows me to transfer a large number of jpegs with a few clicks, and has shortened my "production time" on return flights (so more time to sleep).At home, I use this hub to connect a wireless mouse/keyboard as well as an external hard drive.

The Sabrent 4 port doesn't take up too much space, allows me to transfer a large number of jpegs with a few clicks, and has shortened my "production time" on return flights (so more time to sleep).At home, I use this hub to connect a wireless mouse/keyboard as well as an external hard drive.

because the hub kept ejecting our hard drives

I was expecting to be able to run both my external hard drive and my laptop fan at the same time, both of which should not have a huge power draw as I'm able to power them through a normal USB on my laptop

If you power on a switch with an External Hard Drive plugged in and the hard drive is not seen by the computer, then do the following:1

That means you can transfer files directly between external drives without having to use your internal hard drive as a go-between

Connect hub to computer and peripherals (I have 2 portable hard drives, headphones, and lightning cable hooked to the hub).

Has worked very well but there is an issue where the portable hard drive disappears

I use it to connect other external devices to the computer, like a hard drive or wifi adapter

The drive works fine without the hub installed.

The hard drives kept disconnecting at random times with no physical interference and my backup schedule suffered

Long story short, the hard drives are not recognized

Also great for portable hard drives that I only periodically use

Works great, can supports small device, and Ican only plug 1x hard drive to it at a time

And I definitely could not connect two usb 3.0 portable hard drives, as then it would have required even more power

I get random device disconnects and resets with attached hard drives.

easy to use, i am able to connect 2 of my external hard drive for backups

I don't know if it was just bad luck, but only three of the ports worked.although being self powered, they only provided 500 mA per port which is not enough to power my USB three external hard drive

Usually, external drives won't work unless they're plugged directly into your laptop or PC, which becomes a problem if you don't have enough USB ports to go around

Allows me to play my movie library and swap out hard drive and thumbdrive

Love the fact that it has a switch for each hard drive

I have used this to power portable external hard drives with my 17" Macbook Pro 2011

Very useful hub, I plugged it into my Airport Extreme allowing wireless access to printer and external hard drive for back ups.

otherwise you won't be able to use it with multiple hard drives.

works great for charging devices and connecting hard drives.

Not sure what happened as I never ran any bus powered devices on it, but It was used to add ports for an independently powered hard drive, wireless mouse, iLok dongle and an audio interface

Plugging in devices such as my USB hard drive or thumb drives into the USB ports are also quickly recognized by my computer with no issues

Works great for running an external hard drive from my FireTV box

Not really a good thing for connecting a hard drive to

It keeps disconnecting and reconnecting all the time, so I can't trust my hard drive to this hub any more as I keep very important backups on my drive

I've got an external hard drive, HP printer, and a mouse and keyboard plugged into it and they were all recognized immediately with no dropped connections etc.

You need access to a plug, but it helps my work flow if I don't want to sit at a desk with a large desktop external hard drive

If you are ordering one of these to use with hard drives I would instead buy another

Shortly after I began using this product, all but one of its ports became unusable for connecting my external hard drives

This port allows me to turn on/off whenever I need the individual hard drives instead of having them powered on all the time.

Ethernet to usb, external hard drive, mouse, flash drives.

after 1 year and a half all external hard drive click and don't connect so it is now junk...well maybe a power charger only.

Sometimes this port won't support an external hard drive (it needs too much current?)

Using it to switch between hard drives on my dish network dvr

Great, powers my external hard drive as needed

Bought this for my Xbox One to plug my hard drives into so I could free up a USB port for the Kinect

hard drive

I have an external hard drive connected to my Raspberry Pi, utilizing this USB hub for external power.

right if you need more 3.0 USB slots for plugging in external hard drives, flash drives, keyboard and mouse

It DOES work to charge (materials in description say it is only good for synching)It DOES NOT work to synch data between mac book air and an external Seagate hard drive (materials say it works with mac)I'm VERY annoyed

dont have other external hard drives to test, so maybe its just an issue with this particular seagate drive.i have not done any looking yet to see if there's a driver fix, so there may be a resolution

It does power multiple portable drives without issue.

the on/off switches seem to be a bit annoying/unnecessary - I always end up pressing it accidentally when I try to plug in an USB device.

This didn't work as I