For Raspberry Pi owners: Does this provide enough power for the RPi AND an external USB HD (or other USB devices)? I would like to consolidate 2 power plugs (1 for the RPi and 1 for a USB Hub) to 1 plug.
244424
Yes, and that was the main reason I bought this. I run my Pi, an external HD powered by this, and a WiFi dongle from the hub, have not had any power issues so far (over 6 months running).
1777192
You're probably considering this device because it has its own external power supply, which prevents your Raspberry Pi's power supply from becoming overloaded. Right? I just got this device in the mail today and I had no problems hooking it up to my Raspberry Pi 2 and reading some of my existing hard drives. I found the disks with "sudo fdisk -l" and they show up as /dev/sd? devices. I did have a problem with a few drives mounting in read-only mode. This is more of a Raspberry Pi problem (not having the correct drivers). To get around this, I had to do the following: "sudo apt-get update" "sudo apt-get install ntfs-3g" then a command such as "sudo mkdir /sda2" "sudo mount -t ntfs-3g /dev/sda2 /sda2" You can find other documentation on-line, like how to get it to automatically mount at boot with /etc/fstab entries. Mine is "/dev/sda2 /sda2 ntfs-3g defaults,noatime 0 2". The "noatime" tells it not to constantly update the directory attribute to record each time a file is accessed. But back to your core question -- yes, it absolutely works great with a Raspberry Pi 2 (and by extension, shouldn't have any problem with Raspberry Pi 1 Model B+, and probably other version as well). Enjoy!
887106
Ok it has 2 usb plugs that need to be plugged in at the same time? If this is so will having a usb hub running usb3 work (my hub has the duo like plug side by side on one plug)
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.
1107085
When I tried to pull that much current through this hub... it shorted out, and destroyed every usb peripheral that was attached to it. I believe by the power ratings it might work... but i wouldnt risk it.
434836
You must always use the power plug for USB hubs. Any product claiming to be a bus powered hub would be violating the USB specifications. There is a specified minimum current for each hub port and a specified maximum current for a bus powered device. A hub must be able to supply the minimum required power to each of its ports simultaneously. If it were to be bus powered, the only source of the power would be from the port that is driving it. The sum of the minimum current for the hub's output ports will exceed the specified maximum device current that the hub would attempt to pull from the driving port. You must always use the power plug for USB hubs. Any product claiming to be a bus powered hub would be violating the USB specifications. There is a specified minimum current for each hub port and a specified maximum current for a bus powered device. A hub must be able to supply the minimum required power to each of its ports simultaneously. If it were to be bus powered, the only source of the power would be from the port that is driving it. The sum of the minimum current for the hub's output ports will exceed the specified maximum device current that the hub would attempt to pull from the... » Read More You must always use the power plug for USB hubs. Any product claiming to be a bus powered hub would be violating the USB specifications. There is a specified minimum current for each hub port and a specified maximum current for a bus powered device. A hub must be able to supply the minimum required power to each of its ports simultaneously. If it were to be bus powered, the only source of the power would be from the port that is driving it. The sum of the minimum current for the hub's output ports will exceed the specified maximum device current that the hub would attempt to pull from the driving port. « Show Less
1354445
Yes. I have connected multiple external hard drives to this hub. It is a powered hub and will power drives that are not externally powered themselves (Drives which have only a USB connector and no DC adapter input).
1555909
I tried to plug in an external 320GB hard drive and it didn't work at all. The enclosure had its own power supply and I have plugged it into other USB Hubs before, but this one didn't even recognize it. don't know if it was defective or a limitation of the design, but I am returning it considering that I bought this Hub to swap multiple external hard drives and thumb drives. Hope this helps.
1372409
Agree with other buyers. The second port is needed for adequate power to run HDDs . However through my experience, it didn't work at all, though computer detects the drive. I tried two with the same result - this contraption is not working!
680715
The hub will NOT work with out power. I tried it out with one USB drive and it will not read the drive until AC is added to the unit.
620591
The quick answer is, "Yes."However, this hub is not self-powered; it does not have an AC adaptor. It draws its power from the computer or the device to which it is attached. It has 3 USB ports and an SD-card slot (a very clever and welcome feature), so it can potentially draw the power of 4 devices, which is about the limit for a computer such as the iMac, but it appears to work fine on mine. The warnings expressed by the previous writer are correct.
1692952
Yes you do. This is the one. Generic Premium External Power Supply 5v 1A 2A (1000mA - 2000mA) AC/DC Adapter, Plug Tip: 1.35mm x 3.5mm x 7mm, for USB HUB and 2.5-inch HDD Enclosure
1317455
this power supply *should* work with most devices requiring 5v power (such as usb hubs and external hard drives) and that have a 5v power receptacle that mates with the plug. however, you might want to watch the voltage as some units seem to have unstable voltage levels (one reviewer measured 6v from his unit) and i measured about 5.3v from mine, which seems a little high to me. any more than 5.1v and i'd be wary.
594081
Experimentation tells me that the answer is NO. My experience with bus powered USB hubs has been problematic. Commonly you get a "power fault" on one or more of the devices involved and restoration is very difficult without rebooting (ugh).
1787320
The answer is yes; 4 different peripherals can be connected to be powered from 1 usb hub of a pc. With multi connections case; in order not to lose any data transfer speeds of the connected devices, usb hubs of the pc should either be usb2.0 high-speed type or -much better- usb3.0.
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?
1647312
I suspect that you could plug one of the USB cable into an external power source. The question is, "which one"! I would suggest trying the plug on the end to your computer first, then the 2nd plug, (the one with the short lead), to the power source. However, if this does not work, then swap the 2..... One of the plugs is for power only, (no data line in that one)..... However, when all else fails, add a cheap, 2 or 4 port "active" hub to your computer, then plug a couple of your other USB devices to the HUB.... This can cost less than $20.00 This wireless adapter works so well, adding a small hub still makes this adapter the ONLY way to go wireless!