Speed of USB port?

Is there a program around that will measure the speed of a USB port? I have been doing back up to a USB drive and it is taking for ever.
Thanks
Jim

Yep. 480MB/8=60MB. That where I got it.
I don't know of any software that will monitor the USB port in real time and give an accurate reading of the transfer rate. After you install the card, System Profiler will tell you which of your connected devices are capable of full rate and which are not. It will not, however, tell you the real throughput of any device.
Most devices are incapable of saturating the USB bus when it's running at 480 Mb/s. Usually other factors limit the speed. With the exception of the highest speed hard drives, the disk read/write speed limits the throughput rather than the USB connection.
It's easy to calculate the approximate transfer rate from a hard drive or other storage device even though you can't monitor the speed in real time. Just copy a good sized file to/from the external drive and time it. Then divide the file size by the time it took.
I think you'll notice the increased speed over USB 1.1 even when you don't measure it. I've only recently had a computer with USB 2.0 ports, but I have had a USB 2.0 scanner running on a USB 1.1 port for years. Now that it's connected to a USB 2.0 port, the speed increase is really noticeable even though I haven't measured it.

Similar Messages

  • Determining speed of USB ports - MacBook

    I have heard that one USB port in my MacBook could be faster than the other.
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    If you have a 2012 model then your USB ports support both 2.0 and 3.0. Otherwise, your USB ports are all 2.0.
    Your model information should be in your user manual. If you don't have one you can download one from support.apple.com/manuals/.

  • High speed usb port?

    I have a older laptop. 5 or 6 years old.
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    You have a different problem. The iPod can work with the slower USB1 ports but data transfer is painfully slow. It seems that your iPod needs to be restored back to factory settings.

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  • No high-speed USB ports?

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  • High Speed USB Ports

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  • Must I have a high speed USB port?

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    No, you do not have to have a high speed usb port to use the pod or iTunes. It really does make it much faster though, but it is not necessary.
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  • Location of high speed USB port on Envy 17D

    I'm sure this is a dumb question and the answer must be very obvious to everyone but me, but which of the USB ports on my HP is the high speed (3.0) port? If someone can direct me to a 'photo' or 'diagram' or just tell me whether it is on the left or right and the front or back one, I'd sure appreciate it.
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    Hi,
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    **Click the KUDOS thumb up on the left to say 'Thanks'**
    Make it easier for other people to find solutions by marking a Reply 'Accept as Solution' if it solves your problem.

  • USB Port Speed/Throughput?

    I have an Intel iMac 2.8 Ghz Intel i7 w/ 16 GB Ram.
    I have video recorded in FinalCut Pro in Apple 722 Pro Res HD saved as .mov files on an external USB drive.
    Video plays fine on the 2nd and 4th USB port, but is jittery on the 1st and 3rd ports, whereas on my macbook pro it plays fine on both ports.
    Is this normal or am I having problems on 2 of my USB ports on my iMac?
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    OK I will consider using FW, but back to the matter at hand.
    The iMac has 4 USB ports.
    If only one device a USB hard drive is plugged in at a time to the USB bus, and a performance test is done on this is the result on Ports 1 & 3:
    Results 24.76
    System Info
    Xbench Version 1.3
    System Version 10.6.4 (10F569)
    Physical RAM 16384 MB
    Model iMac11,1
    Drive Type SAMSUNG MP0804H
    Disk Test 24.76
    Sequential 28.30
    Uncached Write 28.97 17.79 MB/sec [4K blocks]
    Uncached Write 29.52 16.70 MB/sec [256K blocks]
    Uncached Read 20.87 6.11 MB/sec [4K blocks]
    Uncached Read 40.00 20.10 MB/sec [256K blocks]
    Random 22.01
    Uncached Write 7.92 0.84 MB/sec [4K blocks]
    Uncached Write 54.12 17.33 MB/sec [256K blocks]
    Uncached Read 53.47 0.38 MB/sec [4K blocks]
    Uncached Read 54.78 10.17 MB/sec [256K blocks]
    And, this is these are the results for Ports 2 & 4,
    Results 29.00
    System Info
    Xbench Version 1.3
    System Version 10.6.4 (10F569)
    Physical RAM 16384 MB
    Model iMac11,1
    Drive Type SAMSUNG MP0804H
    Disk Test 29.00
    Sequential 39.41
    Uncached Write 37.46 23.00 MB/sec [4K blocks]
    Uncached Write 52.54 29.73 MB/sec [256K blocks]
    Uncached Read 25.57 7.48 MB/sec [4K blocks]
    Uncached Read 60.00 30.15 MB/sec [256K blocks]
    Random 22.94
    Uncached Write 7.91 0.84 MB/sec [4K blocks]
    Uncached Write 62.82 20.11 MB/sec [256K blocks]
    Uncached Read 53.36 0.38 MB/sec [4K blocks]
    Uncached Read 75.83 14.07 MB/sec [256K blocks]
    Why are Ports 2 & 4 performing better than Ports 1 & 3, when nothing else is utilizing the USB bus?
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  • My USB port (closest to the screen) is not working? And what is an IR Receiver in my USB port?

    Hi everyone,
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      Host Controller Driver:          AppleUSBEHCI
      PCI Device ID:          0x1c2d
      PCI Revision ID:          0x0005
      PCI Vendor ID:          0x8086
      Bus Number:          0xfa
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      Product ID:          0x8509
      Vendor ID:          0x05ac  (Apple Inc.)
      Version:           5.16
      Serial Number:          DJHBAJ06VRDH7FL0
      Speed:          Up to 480 Mb/sec
      Manufacturer:          Apple Inc.
      Location ID:          0xfa200000 / 3
      Current Available (mA):          500
      Current Required (mA):          500
    Hub:
      Product ID:          0x2513
      Vendor ID:          0x0424  (SMSC)
      Version:           b.b3
      Speed:          Up to 480 Mb/sec
      Location ID:          0xfa100000 / 2
      Current Available (mA):          500
      Current Required (mA):          2
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      Vendor ID:          0x045e  (Microsoft Corporation)
      Version:           6.34
      Speed:          Up to 12 Mb/sec
      Manufacturer:          Microsoft
      Location ID:          0xfa130000 / 6
      Current Available (mA):          500
      Current Required (mA):          100
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      Product ID:          0x0252
      Vendor ID:          0x05ac  (Apple Inc.)
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      Speed:          Up to 12 Mb/sec
      Manufacturer:          Apple Inc.
      Location ID:          0xfa120000 / 5
      Current Available (mA):          500
      Current Required (mA):          40
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      Product ID:          0x4500
      Vendor ID:          0x0a5c  (Broadcom Corp.)
      Version:           1.00
      Speed:          Up to 12 Mb/sec
      Manufacturer:          Apple Inc.
      Location ID:          0xfa110000 / 4
      Current Available (mA):          500
      Current Required (mA):          94
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      Vendor ID:          0x05ac  (Apple Inc.)
      Version:           0.42
      Speed:          Up to 12 Mb/sec
      Manufacturer:          Apple Inc.
      Location ID:          0xfa113000 / 8
      Current Available (mA):          500
      Current Required (mA):          0
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      PCI Device ID:          0x1c26
      PCI Revision ID:          0x0005
      PCI Vendor ID:          0x8086
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      Current Available (mA):          500
      Current Required (mA):          2
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      Vendor ID:          0x05ac  (Apple Inc.)
      Version:           0.16
      Speed:          Up to 1.5 Mb/sec
      Manufacturer:          Apple Computer, Inc.
      Location ID:          0xfd110000 / 3
      Current Available (mA):          500
      Current Required (mA):          100

    I can help with the "IR Receiver" part of your question. That's the piece of hardware inside older MacBook Pros (MBPs) that lets them work with the Apple Remote. "IR" is the standard abbreviation for "infrared," the portion of the electromagnetic spectrum used by remotes for many common devices (stereos, cable boxes, Apple TVs, etc.). The remote sends a coded stream of IR pulses; a corresponding receiver in the target device "sees" the infrared light and decodes it. The MBP's internal IR Receiver sends the received signals to the processor via USB through an internal hub.
    The most recent MacBook Pros have dropped the IR receiver and no longer work with the Apple Remote.

  • Problems with USB port and song transferring;

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    Quote from: Svet on 08-December-10, 00:48:07
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    Welcome to the forums. Lots of good information and help to be had here.
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  • USB Ports on Macbook Pro (Late 2011) no longer working...

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      Host Controller Driver:          AppleUSBEHCI
      PCI Device ID:          0x1c2d
      PCI Revision ID:          0x0005
      PCI Vendor ID:          0x8086
      Bus Number:          0xfa
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      Product ID:          0x8509
      Vendor ID:          0x05ac  (Apple Inc.)
      Version:           5.16
      Serial Number:          CC2BA30DEXDG6LL0
      Speed:          Up to 480 Mb/sec
      Manufacturer:          Apple Inc.
      Location ID:          0xfa200000 / 3
      Current Available (mA):          500
      Current Required (mA):          500
    Hub:
      Product ID:          0x2513
      Vendor ID:          0x0424  (SMSC)
      Version:           b.b3
      Speed:          Up to 480 Mb/sec
      Location ID:          0xfa100000 / 2
      Current Available (mA):          500
      Current Required (mA):          2
    BRCM2070 Hub:
      Product ID:          0x4500
      Vendor ID:          0x0a5c  (Broadcom Corp.)
      Version:           1.00
      Speed:          Up to 12 Mb/sec
      Manufacturer:          Apple Inc.
      Location ID:          0xfa110000 / 5
      Current Available (mA):          500
      Current Required (mA):          94
    Bluetooth USB Host Controller:
      Product ID:          0x821a
      Vendor ID:          0x05ac  (Apple Inc.)
      Version:           0.42
      Speed:          Up to 12 Mb/sec
      Manufacturer:          Apple Inc.
      Location ID:          0xfa113000 / 8
      Current Available (mA):          500
      Current Required (mA):          0
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      Product ID:          0x0252
      Vendor ID:          0x05ac  (Apple Inc.)
      Version:           1.18
      Speed:          Up to 12 Mb/sec
      Manufacturer:          Apple Inc.
      Location ID:          0xfa120000 / 4
      Current Available (mA):          500
      Current Required (mA):          40
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      Host Controller Driver:          AppleUSBEHCI
      PCI Device ID:          0x1c26
      PCI Revision ID:          0x0005
      PCI Vendor ID:          0x8086
      Bus Number:          0xfd
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      Vendor ID:          0x0424  (SMSC)
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      Speed:          Up to 480 Mb/sec
      Location ID:          0xfd100000 / 2
      Current Available (mA):          500
      Current Required (mA):          2
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      Vendor ID:          0x05ac  (Apple Inc.)
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      Speed:          Up to 1.5 Mb/sec
      Manufacturer:          Apple Computer, Inc.
      Location ID:          0xfd110000 / 3
      Current Available (mA):          500
      Current Required (mA):          100
    EtreCheck Information
    Hardware Information:
              MacBook Pro (13-inch, Late 2011)
              MacBook Pro - model: MacBookPro8,1
              1 2.4 GHz Intel Core i5 CPU: 2 cores
              8 GB RAM
    Video Information:
              Intel HD Graphics 3000 - VRAM: 512 MB
    System Software:
              OS X 10.8.5 (12F45) - Uptime: 0 days 0:26:0
    Disk Information:
              TOSHIBA MK5065GSXF disk0 : (500.11 GB)
                        disk0s1 (disk0s1) <not mounted>: 209.7 MB
                        Macintosh HD (disk0s2) /: 499.25 GB (234.19 GB free)
                        Recovery HD (disk0s3) <not mounted>: 650 MB
              HL-DT-ST DVDRW  GS31N 
    USB Information:
              Apple Inc. FaceTime HD Camera (Built-in)
              Apple Inc. BRCM2070 Hub
                        Apple Inc. Bluetooth USB Host Controller
              Apple Inc. Apple Internal Keyboard / Trackpad
              Apple Computer, Inc. IR Receiver
    FireWire Information:
    Thunderbolt Information:
              Apple Inc. thunderbolt_bus
    Kernel Extensions:
              com.squirrels.driver.AirParrotSpeakers          (1.7)
              com.squirrels.airparrot.framebuffer          (3)
              com.protech.NoSleep          (1.3.3)
              com.jft.driver.PdaNetDrv          (1.0.64)
              com.Cycling74.driver.Soundflower          (1.6.2)
    Problem System Launch Daemons:
              [loaded] com.jft.PdaNetMac.plist
    Problem System Launch Agents:
    Launch Daemons:
              [loaded] com.adobe.fpsaud.plist
              [loaded] com.mice.360Daemon.plist
              [loaded] org.macosforge.xquartz.privileged_startx.plist
    Launch Agents:
              [loaded] com.protech.NoSleep.plist
              [loaded] net.culater.SIMBL.Agent.plist
              [loaded] org.macosforge.xquartz.startx.plist
    User Launch Agents:
              [failed] com.apple.CSConfigDotMacCert-[redacted]@me.com-SharedServices.Agent.plist
              [loaded] com.google.keystone.agent.plist
              [not loaded] com.spotify.webhelper.plist
              [loaded] com.valvesoftware.steamclean.plist
    User Login Items:
              PdaNetMac
              Spotify
              iTunesHelper
              SIMBL Agent
              VMware Fusion Helper
              Android File Transfer Agent
              Dropbox
              VMware Fusion Start Menu
              NIHardwareAgent
              Content Manager Assistant
    3rd Party Preference Panes:
              Flash Player
              Native Instruments USB Audio
              NoSleep
              XBox 360 Controllers
    Internet Plug-ins:
              Flash Player.plugin
              FlashPlayer-10.6.plugin
              iPhotoPhotocast.plugin
              JavaAppletPlugin.plugin
              QuakeLivePlugin.plugin
              QuickTime Plugin.plugin
              Silverlight.plugin
    User Internet Plug-ins:
              Google Earth Web Plug-in.plugin
              KickStartPlugIn64.plugin
              RealPlayer Plugin.plugin
    Bad Fonts:
              None
    Top Processes by CPU:
                  13%          Google Chrome
                   7%          WindowServer
                   3%          EtreCheck
                   2%          hidd
                   1%          fontd
                   0%          coreservicesd
                   0%          ps
                   0%          Dropbox
                   0%          mds
                   0%          CMA
    Top Processes by Memory:
              287 MB             firefox
              131 MB             Google Chrome
              82 MB              App Store
              66 MB              Dropbox
              57 MB              mds
              49 MB              WindowServer
              43 MB              Google Chrome Helper
              41 MB              Finder
              33 MB              Dock
              25 MB              loginwindow
    Virtual Memory Statistics
              4.89 GB            Free RAM
              1.69 GB            Active RAM
              238 MB             Inactive RAM
              1.18 GB            Wired RAM
              443 MB             Page-ins
              0 B                Page-outs

    Thanks for the response,
    1. I live in Atlanta, close enough to an Apple store. But I just know that going there will probably mean I'll have to get the logic board replaced.
    2. The only thing I noticed before the first USB port started acting funny was that my battery status changed to "Service Battery". I plan on replacing it this week too.
    3. Nope only difference is that my battery drains kind of fast. After about 3-4 hours of my normal usuage with it (Internet, music, videos, and sometimes using Logic) it will be time to hook up the charger.
    Would replacing the battery do anything? I'm not thinking it would but figure it'd be worth a shot since I've got to replace it anyway.
    And to goofyziggy,
    I too noticed that most people who had this problem had some version of OSX 10.8.x

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