Why does my USB 3.0 hub appear as a USB 2.0 Hub?

I have a brand new 2012 iMac running OS X 10.8.2. I purchased a hub that is a USB 3.0 hub, hoping to take advantage of the higher transfer speeds.
I have the following devices plugged into the hub:
HP Photosmart Printer/Scanner/Fax (a USB 2 device)
HP 2015 Laserjet (also a USB 2 device)
Neat Mobile scanner (USB 2)
When I plug in a portable hard drive (bus powered 2.5 inch drive) that is in a USB 2.0 case, the drive mounts on my desktop as it should.
When I plug in a portable hard drive that is in a USB 3 case, it fails to mount.
When I plug a hard drive that is USB 3 into the back of the Mac, it shows up as a USB 3 drive.
Is this happening because I have USB 2.0 devices plugged into the hub? What would be a good solution, two hubs (one 2.0 and one 3.0) plugged into the back of my iMac?

Have you tried different ports on the Mac Mini?
Try a different Cable.
Confirm that the unit is being powered, the ports will only supply 100ma when unpowered.
Have you anything else plugged into the Hub, if so test the items one at a time.
Have you contacted D-Link support for advice?

Similar Messages

  • Why does image / photo in lock screen appear like background?

    why does image / photo in lock screen appear blurred in ios 7.0.3 on iphone 5?

    Sorry, the image is not visible.
    Some  of the display settings are stored in PRAM. PRAM reset is harmless.
    Reset PRAM:   http://support.apple.com/kb/PH14222
    Best.

  • Why does Apple misslead us selling what appears to be Game of Thrones Season 2 when in fact all it is - is a few trailers and the actual program is only available 18th Feb - this gives me a real bad feeling toward Apple and its branding!!!! deceitful

    Why does Apple misslead us by selling what appears to be Season 2 Game Of Thrones when in fact it is only some timewasting trailers and the actual program is only available on 18th February 2013!
    Deceitful comes to mind....
    I am sure they will say it is in the small print and you should have read it and what you got was these 'Really Cool Trailers'......but come on Apple - don't screw up your BRAND now if you carry on you will have a core problem! My trust is waning.
    Its is not like Aple will be stocked-out on the 18th February is it - in reality I guess they just want the money upfront well in advance of delivering the product....just not on Steve will be turning in his grave.....

    etresoft, I think you are being unnecessarily harsh to gloriastitz. She is frustrated and doesn't understand computers at the level you do. What she is experiencing is frustrating, so she is frustrated. I have been a help-desk professional for over 15 years now, and emotions are part of the business.
    I know it has been over 6 months since gloriastitz posted her reply. I hope she got a useful answer, but I fear we have satisfactorily scared her away from seeking help.
    So, the first best response to tell someone is that the problem they are experience is almost certainly fixable, but may require more information to solve. You tell them you understand their frustration (even if you personally don't experience frustration or don't understand why people my express frustration publicly about a problem that frustrates them). It's just good protocol.
    Then you work with the person to break down the problem into steps. If you don't have a ready answer and don't think you might even know the answer with sufficient data, then back out and leave it to others to tackle.
    I've been having a similar problem with my Mail program. The cause is still unclear to me after vieweing the logs and changing settings where I know them to be. There appears to be a setting that is not clearly placed in any of the typical UI locations for initiating the desired action for either a feed: or mailto: call.
    etresoft wrote:
    gloriastitz wrote:
    I'm sure I'm not the only one having these frustrations.
    I think you are. This is not a place to rant and complain. It will just encourage people to give you unhelpful responses. If you want to complain, go elsewhere. If you want help, ask for it.
    For example, can you explain what those dialog boxes actually say? Regardless of who is starting Mail, it will not prevent your machine from sleeping.

  • Why does a previously used screensaver keep appearing?

    Why does a screensaver that I used weeks ago keep appearing?

    Boot up from your computer by holding down the command+r keys.  This will take you to the recovery drive.
    Select Disk Utility & hit Return. 
    In Disk Utility select the HD on the left & click on Repair Disk (bottom right).
    Above instructions are also in the OS Help menu.
    ==================
    Where is the web screensaver located on your HD?

  • Why does my iphone 4s no longer appear on my PC?

    Last week I downloaded to my PC some pictures from my Iphone 4s.  Since then, my Iphone does not appear as a device on my PC.  I have rebooted my PC.
    I've rebooted my Iphone.  I've deleted and reinstalled Itunes and made sure I have the latest issue of the Iphone operating system.  I've tried different cables as well as different USB ports.  I've confirmed the connection by attaching my Ipod and Ipad, both of which appear normal on my PC. 
    Any suggestions would be appreciated. 
    Thanks

    have you tried to restart the iPad?
    here is how one restart iOS devices
    Turn your iOS device off and on (restart) and reset

  • Why does my high res photoshop image appear blurry when placed in InDesign and Exported as PDF?

    Hi there,
    I have a problem I've been trying to solve for days but just can't find the answer anywhere on the internet.
    I have a large, good quality photoshop file (2268 x 979 pixels, resolution 300 pixels per inch). When I place it into InDesign, the image appears OK (I've changed my display settings to HIGH) - I then resize it in InDesign to 10% and the file still looks great! Then, when I export it as PDF (high quality print) it looks blurry.
    Does anybody know why? The strangest thing is, I've placed other photoshop images in the same InDesign file and they look crystal clear. It is just this one I am having trouble with. I've saved it in the same folder as the other pictures, I've tried placing it as psd. , jpg. , photoshop pdf, png. everything...
    The image looks great in both photoshop and indesign, only when exported as pdf it looks awful.
    Any help will be greatly appreciated,
    Many thanks in advance!
    Weronika

    It's probably the extreme reduction -- you're throwing away 90% of the image pixels and interpolating, and then using jpeg compression on top.

  • Why does the directory ~/var/log keep appearing?

    It doesn't matter how many times I delete it, every few hours the blank directory ~/var/log gets created on my computer.
    I think it may have something to do with my Brother HL2170W printer, which is connected to my wifi network. But that's just from the fruitless googling on this topic I've already done.
    Does anyone know why a blank ~/var/log directory would persistently appear?
    Thank you in advance.

    ~var/log/ is a directory that holds log files. If it actually has a ~ in the name, some software is trying to write to the hidden directory, but has been miss-configured and is creating the directory you see instead of writing to /Users/username/var/log. ~/ is short for your home folder, but the program is actually writing that as part of the path name instead of being a path.

  • Why does my ipad 2 keep dropping the connection to my BT Home Hub, whilst streaming video, since upgrading to IOS 6?

    Ever since i have upgraded to IOS6 My connection to my BT Hub 3 wifi router keeps dropping out whenever i am streaming video. I have an Apple TV connected as well which is fine as are other devices, its just the Ipad since the move to IOS6. It is really frustrating and i had hoped the 6.01 release would have resolved it, but it didnt. I have seen other similar comments, i just want to know if this is a common known fault which Apple are going to fix.
    The strength of Apple has always been 'it just works' , i can't help but feel that there are cracks appearing in this.
    David

    Some things to try first:
    1. Turn Off your iPad. Then turn Off (disconnect power cord for 30 seconds or longer) the wireless router & then back On. Now boot your iPad. Hopefully it will see the WiFi.
    2. Go to Settings>Wi-Fi and turn Off. Then while at Settings>Wi-Fi, turn back On and chose a Network.
    3. Change the channel on your wireless router (Auto or Channel 6 is best). Instructions at http://macintoshhowto.com/advanced/how-to-get-a-good-range-on-your-wireless-netw ork.html
    4. Go into your router security settings and change from WEP to WPA with AES.
    5.  Renew IP Address: (especially if you are droping internet connection)
        •    Launch Settings app
        •    Tap on Wi-Fi
        •    Tap on the blue arrow of the Wi-Fi network that you connect to from the list
        •    In the window that opens, tap on the Renew Lease button
    ~~~~~~~~~~~~~~~~~~~~~~~~~
    iOS 6 Wifi Problems/Fixes
    Fix For iOS 6 WiFi Problems?
    http://tabletcrunch.com/2012/09/27/fix-ios-6-wifi-problems/
    Did iOS 6 Screw Your Wi-Fi? Here’s How to Fix It
    http://gizmodo.com/5944761/does-ios-6-have-a-wi+fi-bug
    How To Fix Wi-Fi Connectivity Issue After Upgrading To iOS 6
    http://www.iphonehacks.com/2012/09/fix-wi-fi-connectivity-issue-after-upgrading- to-ios-6.html
    iOS 6 iPad 3 wi-fi "connection fix" for netgear router
    http://www.youtube.com/watch?v=XsWS4ha-dn0
    Apple's iOS 6 Wi-Fi problems
    http://www.zdnet.com/apples-ios-6-wi-fi-problems-linger-on-7000004799/
    ~~~~~~~~~~~~~~~~~~~~~~~
    Look at iOS Troubleshooting Wi-Fi networks and connections  http://support.apple.com/kb/TS1398
    iPad: Issues connecting to Wi-Fi networks  http://support.apple.com/kb/ts3304
    WiFi Connecting/Troubleshooting http://www.apple.com/support/ipad/wifi/
    How to Fix: My iPad Won't Connect to WiFi
    http://ipad.about.com/od/iPad_Troubleshooting/ss/How-To-Fix-My-Ipad-Wont-Connect -To-Wi-Fi.htm
    iOS: Connecting to the Internet http://support.apple.com/kb/HT1695
    iOS: Recommended settings for Wi-Fi routers and access points  http://support.apple.com/kb/HT4199
    How to Quickly Fix iPad 3 Wi-Fi Reception Problems
    http://osxdaily.com/2012/03/21/fix-new-ipad-3-wi-fi-reception-problems/
    iPad Wi-Fi Problems: Comprehensive List of Fixes
    http://appletoolbox.com/2010/04/ipad-wi-fi-problems-comprehensive-list-of-fixes/
    Fix iPad Wifi Connection and Signal Issues  http://www.youtube.com/watch?v=uwWtIG5jUxE
    Fix Slow WiFi Issue https://discussions.apple.com/thread/2398063?start=60&tstart=0
    How To Fix iPhone, iPad, iPod Touch Wi-Fi Connectivity Issue http://tinyurl.com/7nvxbmz
    Unable to Connect After iOS Update - saw this solution on another post.
    https://discussions.apple.com/thread/4010130
    Note - When troubleshooting wifi connection problems, don't hold your iPad by hand. There have been a few reports that holding the iPad by hand, seems to attenuate the wifi signal.
    ~~~~~~~~~~~~~~~
    If any of the above solutions work, please post back what solved your problem. It will help others with the same problem.
     Cheers, Tom

  • HT4623 why i update os7 and my iphone appear Itunes and usb cable, and I dont connect my iphone in itunes

    Why I cant connect to my iphone 4, after I update to os7, and the screen appear ITunes and the USB Cables head.

    Your iPhone is in recovery mode, You need to connect to iTunes in order to recover your phone. Once you do that, you will not have to connect it into your itunes again.

  • Why does my iPhone 4S no longer appear as a camera under windows XP

    I have an iPhone 4S for about 6 months. I have taken many pictures and previously when I connected it to my PC runnng Windows XP pro, the iTunes application started and the "camera wizard" also started. With the camera wizard I could download any or all of my photos from the "camera roll". Today this no longer works. Is this because of the operating system upgrade in the iPhone (6.0.1 (10A523), or a setting in my PC which has changed? The iPhone also appeared as a reomvable disk (which contains only the photos in the "camera roll") This no longer shows, so it seems it is an iPhone problem, not a Windows problem. Any Suggestions?

    I assume you've already seen this, but this is Apple's troubleshooting page on your issue: http://support.apple.com/kb/TS1538.  In particular, if you haven't already done so, you might want to look through items 4-6 at the bottom of this (checking the Apple USB driver in device manager, 3rd party mobile phone and security software.

  • Why does my CS5 Bridge gallery not appear after being uploaded?

    Hello,
    I have recently created a series of galleries built into Dreamweaver. I used <iframe> to incorporate and it previewed in the browser just fine. After uploading the gallery does not appear. Please review this site and code for any recommendations.
    www.jakgallery.com/19901999.html
    Thanks very much! Mike

    Take the Bridge created index.html page and associated files and folders and copy them to your Dreamweaver site folder, making sure not to overwite your existing index page or folders you may want to rename the Bridge Created files something els like add a 2. Then open the Bridge created index.html file with Dreamweaver, switch to code view and then select all t eh coed and copy it to your clipboard. Now open up your own Dreamweaver page or create a new page inyour Dreamweaver managed site and switch to code view, select all and paste previously copied code into it. Make sure to double check that URLs  point correctly to where your resources are making sure that wherever your photos are called in the code point to the folder and image where that particular folder is located in your site.
    someone else came up with this so if they see this I thank you.

  • Why does the displacement effect is not appearing on my adobe muse effects menu?

    I have seen tutorials about the displacement effect but when i open the effects menu, it doesnt appear, and I dont know why, can someone help me with this issue please

    I think you may be referring to Scroll Effects. The Scroll Effects are now located in their own panel. From Muse's Window menu, choose 'Scroll Effects' to display the panel with all the options.

  • Why does my iPhone 4s not recognize there is a usb cord attached to it and not charge?

    This problem just came up today. Everytime I attach the usb charging cord into my iphone it does not vibrate like it normally would. It also does not show the lightning symbol by the battery bar and does not show that it is charging. This problem happened to my previous iphone but it had water damage. This is not the case for this phone because i recently got this phone about a week ago and it hasnt been around any water or moisture. I also tried multiple cords thinking it was that was the cause of the problem but it turned out it wasnt. This problem is really annoying and i just want my phone to charge so I can continue using it. If anyone knows anything I can do to fix this, it would be much appreciated.
    Thanks, Josh

    Are the cables Apple cables? Is the wall charger the Apple Charger? If the answer to those is yes, then make an appointment at the Genius Bar at Apple to get the device checked.

  • Why does my Macbook Pro Crash when I tether with USb cable from iphone 4?

    Ok so I pay for the tethering thing for my iphone 4. And when i use bluetooth or wifi it works just fine. But when i connect my iphone to my macbook pro with the usb cable it completely crashes. Like the screen gets gray but sti see thru and it says to turn off my laptop by holding down the power button. and it has it on many languages. Whats up??? what can i do?
    I have the MacBook Pro.15 in 2.2 ghz i7 4 gb ram, the high end 15 inch stardard the only diff is that it has hi res anti glare screen.
    Plese guys if you have experiene this let me know what i can do.

    I know I went to the apple store and they said it's not normal specially since it deletes some stuff. And they told me to make an appointment. 

  • Why does a "script' text in design appear as non script (block) in browser preview in CS5 on a Mac?

    I have amended text within the design field and selected "Brush Script MT Italic. In the design view in Dreamweaver CS5 it appears in this script  but when I preview it either in Dreamweaver "preview in browser" or after uploading and viewing in browser the text appears in a non script format.
    The source code is :
    <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
    <html xmlns="http://www.w3.org/1999/xhtml">
    <head>
    <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
    <title>Untitled Document</title>
    <link href="test.css" rel="stylesheet" type="text/css" />
    </head>
    <body>
    <p>This is a test.</p>
    <p> </p>
    </body>
    </html>
    And the linked CSS style sheet reads:
    @charset "UTF-8";
    /* CSS Document */
    p {
              font:"Brush Script MT Italic";
    I am using a Mac with Lion OS. I have tried many script font but the result is the same.
    DC

    There are only a minimal amount of web safe fonts to be used in your webpage design. Frush Script MT Italic is not one. What happens is it might display on the computer that has that font, but on a person web browsing computer, if the font is not installed, then it will use the default font (usually times new roman or equivelant on Mac). It is best to stick with the web safe fonts (google it) unless you use the font in a graphic.
    Jim

Maybe you are looking for