Powered USB 2.0 on 12" 1.33GHz PBG4

Anyone know for sure whether the ports on the 12" PBG4 are truly powered USB2.0 ports?
Here's my evidence that it is not:
I have a 40GB USB 2.0 LaCie Porsche laptop-size external HDD that runs on bus power (it has a dongle that supplies power that uses another USB port in the event that it can't do it over the one wire)... Trouble is, while the USB on my PBG4 has a high-speed USB controller, it doesn't power the drive on its own. I can plug the same drive over the same cable to my older 15" 1GHz Titanium PBG4, and it comes right up on the Desktop (although it is running at USB 1.1 speeds)...
Is there something I'm missing? I have a PSP, which runs on USB 2.0, and it works just fine on my 12"... my assumption here is that the PSP is self-powered, though, and that's why it works just fine.
Any thoughts/comments are appreciated.

Agreed. It has powered other devices, but it has not been able to power a HDD on the single USB cable.
I should try an external powered USB hub, and see if it "powers" it then... my guess is that it will work just fine, but toting a power cable for a hub in addition to the machine and the drive itself prove to be counter-progressive. Oh well. :'(

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New MBP and Self Powered USB HDD

Does the USB ports provide enough juice to power self-powered USB HDD?

I would not bet the farm without trying it out first. There is no guarantee it will power hub-powered USB drives, the track record on this is terrible and some people already report needing the special "connect to both USB ports" cable. Sounds like a bad start.
Since USB is mediocre for data transfer and since self-powered firewire drives are the gold standard, just buy the proper (FW 400 or 800) drive and worry not.

Macbook Air + 30" Apple Cinema Display + Powered USB hub

I just received my dual link DVI to mini display port adapter in the mail today, and so far it's working just fine connecting my newer generation Macbook Air to the older 30" Apple Cinema display (the Air is closed, with an Apple wireless mouse/keyboard connected via Bluetooth).
I'm wondering if anyone has any success connecting a powered USB hub to either the adapter itself or the 30" display in order to gain some USB functionality out of the Air? I have a powered 4 port D-Link hub which worked fine directly into the Air, but I can't seem to power any devices when it's hooked up to the 30" display or directly into the adapter. I can't even get devices (external powered hard drives, Mbox) to work when plugged into the screen directly (no hub).
I called AppleCare about the problem and they said they don't support USB hubs via the 30" Apple Cinema Display when connected to the Macbook Air, but if anyone has any experience with this situation or if someone could offer me advice to get USB functionality out of my MBA + 30" ACD, it would be greatly appreciated!

Welcome to the Apple community.
Unfortunately not.

When I connect my MacBook Air to iPads through a powered USB hub the power cord for the hub explodes and trips the fuse on the building. I've tried different iPads, cords, power points to no avail.

When I connect my mac air to some iPads through a powered USB hub for VPP/Configurator, the power point for the hub blows out (tripping the fuse in the building). I've tried different iPads, cords, power points and of course hubs. Also the computer has a habit of shutting down when any type of USB device is removed from it. Does anyone have any suggestions?

I've done some experimenting, and this is what I've found out:
1) The problem persists when I reformatted the USB HDD devices to ExFAT, so the problem apparently wasn't due to NTFS for Mac OS X by Paragon.
2) The problem persists even when BackBlaze is paused, so I don't think that it's due to BackBlaze.
3) The internet cuts out as soon as data begins transferring either to or from a USB HDD device and won't reconnected until I eject and unplug the device.
4) The problem affects data transfers through either USB port.

Do i need a powered usb hub to connect my external hard drive and printer to my airport extreeme

I tried a usb hub from Belkin that is not powered. Is this why I cannot get my hard drive to work on my Airport Extreme?

I am assuming that you are using the newer "square" version of the AirPort Extreme, not the older "round" version.
The USB port on the AirPort Extreme is under powered. I have had to use a powered USB hub with any type of hard drive that I've ever used on the Extreme, even if the drive had its own power supply.
You might want to also check to make sure that the drive is formatted in Mac OS Extended (Journaled) or MS-DOS FAT32. The normal Windows format of NTFS will not work at the AirPort Extreme.

Is there a Powered USB accessory Which Can Enable USB Wifi Dongle AND Other Peripherals?

the usb sockets are too close! but when i use a 'splitter' I cant use my mobile broadband dongle. any solutions?

Yes, powered USB hubs are pretty common and you should find them in any decent computer supplies store.
A few examples from Amazon search:
http://www.amazon.co.uk/tag/powered%20usb%20hub/products/ref=tag_dh_istp

Powered USB hard drives non-responsive awaking from sleep

I have an external powered USB drive connected to the 24" Cinema Display built-in hub on a 13" Macbook (early 2009). When the computer goes to sleep then wakes up, the external drive is unresponsive. This does not happen when the drive is directly connected to the laptop.
I do not have a disconnect error upon wakeup and the computer still sees the drives connected. It just won't spool them up and make them accessible.
Other non-powered items on the Cinema Display's hub wake up fine like card readers and USB Turbo 264 dongles.

This seems a pretty close match for the issue I've seen with my 2009 13" MacBook Pro and 24" Cinema display. I thought the Performance Update 1.0 might have been intended to address this (described as 'addresses intermittent hard drive related pauses') but I've applied the update and am still seeing this issue.
Obviously it can be worked around, but it would be great to be able to use the usb hub on the display for a backup drive.

How many bus-powered usb external drives per hub?

I'd like to have two bus-powered USB hard drives (to be used as backups with Time Machine) connected to one powered USB hub. Would that work, or would a powered hub be likely to support only one bus-powered external hard disk? (In that case I could get a self-powered hard drive for my second backup drive.)
Thank you.

Works for me, I just connected both my WD Passport and Seagate GoFlex to my Belkin Hub.
Hub: Belkin
Product ID: 0x2507
Vendor ID: 0x0424 (SMSC)
Version: 0.00
Speed: Up to 480 Mb/sec
Location ID: 0x26200000 / 2
Current Available (mA): 500
Current Required (mA): 2
FreeAgent GoFlex:
Product ID: 0x5021
Vendor ID: 0x0bc2 (Seagate LLC)
Version: 1.48
Serial Number: NA03N18Y
Speed: Up to 480 Mb/sec
Manufacturer: Seagate
Location ID: 0x26270000 / 4
Current Available (mA): 500
Current Required (mA): 100
Capacity: 320.07 GB (320,072,932,864 bytes)
Removable Media: Yes
Detachable Drive: Yes
BSD Name: disk2
Partition Map Type: GPT (GUID Partition Table)
S.M.A.R.T. status: Not Supported
Passport WD:
Product ID: 0x0704
Vendor ID: 0x1058 (Western Digital Technologies, Inc.)
Version: 1.05
Serial Number: 5758453830384E4A30333634
Speed: Up to 480 Mb/sec
Manufacturer: Western Digital
Location ID: 0x26250000 / 3
Current Available (mA): 500
Current Required (mA): 2
Capacity: 160.04 GB (160,041,885,696 bytes)
Removable Media: Yes
Detachable Drive: Yes
BSD Name: disk1
Partition Map Type: MBR (Master Boot Record)
S.M.A.R.T. status: Not Supported
Likewise it your needing another External Hard Drive, I would recommend spending a little more for a more rugged Desktop drive to use for storage or backup.
Go with an OWC Mercury Elite Pro or a LaCie Little Big Disk and stay away from those cheap-o WD MyBooks.

Using powered USB to transfer data.

Hello all,
Can I use a powered USB hub (connected via the camera adaptor) to transfer data to iPad. I have the new iPad and saw this information on another forum as a means to transfer data to the iPad. However, since it doesn't "come up" on the screen as on the Mac, is there a way to use it for data transfer - ie Pages files, other types of files. Is there a way to have the iPad recognize a thumb drive connected in this way?
Thanks for any help.

You can also transfer video along with photos (as long as it's compatible with the iPad and follows a strict naming protocol) but the iPad doesn't support the kind of data transfer you're talking about.

Airport Extreme REQUIRES powered USB hub for external HDDs

Just bought an Airport Extreme Wireless dual-band N router (January 2012). It works very well and having the separate 2.5 and 5 GHz bands is a fantastic feature. Setup was really easy and it essentially worked 'out of the box'. The one issue I had is attaching a USB Western Digital 1 TB HDD to share on the network and use for Time Machine backups from multiple MacBook Pro laptops.
The drive would appear in the Aiport Utility's "Share Hard Drive" tab, but it was listed as zero bytes and wasn't available to actually share out over the network. I formatted it as a single volume to make sure there wasn't an issue with the drive itself (although it should support multiple partitions on a drive), and it mounted to my Mac just fine, but it still would not work with the Airport Extreme.
After reading several posts on these Apple forums I picked up the fact that the only way most people get their hard drives to work is by purchasing a powered USB hub and connecting that between the Extreme and the hard drive. Some hard drives do appear to work plugged directly into the Airport Extreme, but that seems to be more of the exception than the rule.
The reason given is that the USB port on the Airport Extreme was originally designed for printers and is basically underpowered for proper HDD connections. Adding a powered USB hub not only allows USB hard drives to work, but you can connect multiple USB devices (hard drives and printers) to share over the Airport Extreme through the powered hub, so you do get that added feature.
So if you have plans to upgrade to the incredibly fast and efficient Airport Extreme and plan to do your Time Machine Backups wirelessly (which works very well), add a powered USB hub to your purchase to avoid some frustration. I picked up a four-port powered USB hub at Staples for $30.
It's a great purchase otherwise. Four out of five stars in my review.

For anyone else who reads this post, the respondents are correct. I cannot find anything directly from Apple that states explicity the support for Time Machine backups to a USB drive on a second generation Apple Airport Extreme. I would love to see their detailed case studies and latest tests that demonstrate the backup corruption isues, and more recent tests conducted with the latest Airport Extreme, running the latest firmware with Lion 10.7.2.
Having said that, each person who is interested in this as a backup solution should consider more than one source before making a final decision:
http://gizmodo.com/369973/apple-time-machine-now-works-with-airport-disk
http://stephanfassmann.blogspot.com/2008/03/how-to-setup-time-machine-on-airport .html
http://forums.macrumors.com/showthread.php?t=881757
http://www.computerworld.com/s/article/9070282/Time_Machine_now_works_with_AirPo rt_Extreme_drives_say_users
http://arstechnica.com/apple/news/2008/03/finally-airport-extreme-usb-disk-time- machine-backup.ars
http://news.softpedia.com/news/Time-Machine-Update-Back-Up-on-AirPort-Extreme-Ad ded-81256.shtml
The Apple Support articles referenced that explicity state TS does not work with Airport Extreme mounted USB drives are for older OS X 10.5 and 10.6. I cannot find anything for 10.7 that states the same thing:
Older Mac OS X 10.5 and 10.6:
http://support.apple.com/kb/HT2038
http://docs.info.apple.com/article.html?path=Mac/10.6/en/15139.html
http://Pondini.org/TM/Airport.html
The other thing you can do is on the Time Machine menu, hold down the "Option" key and use the 'verify backups' option to help ensure that your TS backups are valid.
Hopefully Apple will come out with an official statement soon that speaks directly to the 2nd generation Airport Extreme on the latest firmware running TS backups from OS X Lion 10.7.
My statement about the need for a powered USB hub to have much better success with USB attached hard drives still stands.

Anker Powered USB Hub (7 port, usb 3.0) often won't light up (function) after waking Mavericks from sleep

My iMac is 27" (mid-2010) with 8 GB RAM. My only problem is that my new Anker Powered USB Hub (7 port, USB 3.0) often does not wake when computer does. In other words, the power lights remain off following waking the computer from sleep and I must unplug and replug the HUB. I called Anker and they told me that Mavericks has a new "energy saving power mode" that may turn off power to a USB hub. This is most annoying and I hope that Apple can update Mavericks power management to fix this USB issue. Has anyone else experienced this problem? I've seen similar posts from D-Link USB hub owners. Perhaps if this "question" has a response trail, Apple will see it and create a fix.

Hopefully, Apple will monitor this issue and correct the USB power management issue. We'll see what happens with Yosemite.

IMac shuts down after connecting powered USB connector

I have just brought this 7 port powered USB connector and everytime I put my Mac to sleep it shutdown and will not restart unless I disconnect the main power feed and then re connect. Any ideas would be appreciated.

check KERNEL.LOG and CrashReporter under Files in Console.

To add a 6 TB G-Raid (Mac os extended) ext drive to a 2Tb time capsule, using a powered usb with the TC usb port. Using the airport utility 5.6 on iMAC (10.7.3). Went to manual setup,then disk. Have options of the TC

Want to add a 6 TB G-Raid (Mac os extended) ext drive to a 2Tb time capsule, using a powered usb with the TC usb port. Using the airport utility 5.6 on iMAC (10.7.3). Went to manual setup,then disk. Have options of the TC or 6TB. Won't allow update to the 6TB

4Buck5 wrote:
Want to add a 6 TB G-Raid (Mac os extended) ext drive to a 2Tb time capsule, using a powered usb with the TC usb port. Using the airport utility 5.6 on iMAC (10.7.3). Went to manual setup,then disk. Have options of the TC or 6TB. Won't allow update to the 6TB
I am not 100% what isn't allowed.. but I am assuming you want to spread the backup across the two disks.. internal TC and 6TB external.. this is not possible.. It has to be one or the other. TC has no way to build a raid JBOD or anything else. Nor would you want to as that is the most likely to fail and kill your data.
Let me add, backing up 6TB over USB on TC.. will be the most excruciating experience of your life.. cf child birth or passing kidney stones.. large ones.. being the male equivalent.

U430 powered USB 2.0 port charges devices but does not recognizze

I just got a U430. I noticed that any devices plugged into the powered USB port on the right side of the computer will charge, but the computer does not recognize them. I tried disabling/enabling all the USB hubs in the Device Manager, unselected the option to have Windows turn them off to save power, and did the same in the BIOS. I can't seem to update the drivers as it says they are all the most recent ones. Any thoughts? This seems like a recurrent problem with other Lenovo products, and I don't see a real solution in most of the threads. The OP just stops replying.
Thanks!

hi turtl631,
Welcome to the Forums.
Just to verify, what are the devices (brand/model) that you've tried so far? Also, is the machine running Windows 8 / 8.1?
If a flashdrive won't work and you're running Windows 8.1, kindly check this thread for a possible resolution.
Let me know how it goes.
Regards
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Getting a ministack or sit-on powered USB hub in the UK?

I've got a Mac Mini G4 - I got it a decent-ish price, coming as it did with a three year warranty - in the UK and I'm having problems finding anywhere over there that sells external enclosures. My primary reason for wanting one of these is to add an extra 3 USB ports to my Mac Mini. I was considering getting one of those Belkin USB hub things that the mini stands on, but I need powered USB ports. I really want one that fits below the Mac Mini.
Which got me thinking about external enclosures. I could buy an empty one, such as the Ministack V2, use it as a hub, and add a bigger hard disk later, which I probably will as I intend to replace my PC with my Mac long term. So does anyone know anywhere in the UK that sells a MiniStack V2 empty or similar empty enclosure that features powered USB ports? Or failing that, are there any mini-shaped USB hubs, other than the Belkin one, that actually have powered USB ports?

Might I recommend checking out macsales.com for the ministack? They are in the US but I have more than a couple friends in the UK that have purchased from them previously.
(..and I've mentioned that site a lot today, I feel like an advertiser now but I seriously am in NO WAY affiliated with them. I've just used them for years and they've proven reliable to me.)

Powered USB 2.0 on 12" 1.33GHz PBG4

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