Can I connect two USB external hdds at once?

Can I connect two external hdds by USB at once and then transfer between the two?

Yes. The practical limit is 126 drives (you need the appropriate USB hub to do that, of course )

Similar Messages

  • Can I connect an additional External HDD through USB?

    Hi,
    I would like to know if it's possible to connect an additional external HDD to the Time Capsule and share it like on the AirPort Extreme with "Hard Drive Sharing".
    I think it's called an AirPort Disk, through USB.
    Thanks!

    I had two drives, two printers and a powered USB hub. The best I ever got the AEBS to read was the two printers and one drive. I haven't tried it yet with the Time Capsule as the hard drive onboard made the the other two expendable.
    I still do have access to the secondary drive but am in the middle of an archive of the time capsule as there's something wrong with the Time Capsule drive or directory. Once I get that straightened out I will test two drives in the hub and see if Time Capsule is any better suited to multiple externals.
    Message was edited by: John Teeter

  • Newbie question: can I connect an USB external HD to an iPad?

    Hi,
    I'm still deciding if I should buy an iPad or not and one of the questions I have is if I can connect an USB external HD to an iPad.
    Can you help me please?
    Thanks

    abarrote wrote:
    one of the questions I have is if I can connect an USB external HD to an iPad.
    no.
    JGG

  • Can't connect to USB External

    I have a newertech miniStack 500gig external hdd. I plug it in to the APE with USB. I see it in OS X10.5 in the finder, I click to connect to it, and nothign happens. It only worked once. Now it doesn't. I tried connecting to it as a registered user, nothing. I try as a guest, nothing. Help ?

    I could never get the Airport Disk Utility to work, either.
    I've had success at auto-mounting my shared USB disks on an AEBS by first manually mounting the shared disks in the finder, then dragging the disk I want to auto-mount into the Startup pane in the Accounts Preference Pane. When rebooting, the disks will auto-mount if you are automatically connected to your network.

  • Can I connect two usb hard drives to my time capsule?

    Dear all,
    I have bought a powered usb hub to connect two usa hard drives to my 3rd generation time capsule, as it is written in http://support.apple.com/kb/HT2421
    I have formatted both hard drives, so now the file system is extended Mac OS (journaled). If I plug the usb hub to my laptop, I can access both hard drives. If I plug it to my time capsule, by no means I can access any disk. If I plug each hard drive directly to the time capsule, I can access each of them. I don't understand! what can be the problem? The file system is ok, the hub is powered and everything is working if I plug it to my laptop. Can anybody help me? Any idea? Thank you in advance!

    A hub that works on a Mac does not necessarily work on a Time Capsule.. eg Some Belkin hubs do not work on TC even though they work on the Mac.. The TC having a small amount of ROM memory can only store drivers for a small selection of usb chipsets.. you need to buy a different powered hub..
    What ones actually work with TC.. ?? Not sure.. google for success.
    best usb hub airport (airport and TC are same thing)
    This is coming up all the time.
    https://discussions.apple.com/thread/3787224?start=0&tstart=0
    Your problem is finding the right one, because even like belkin ones, a 7port might work, because belkin are rebadgers they don't make anything.. so it depends which factory they come from.. for a consumer product like a hub they probably care more about the outside and packaging appearance than the chip used inside. And lets face it.. all they care about in the end is to deliver it for the cheapest price possible to make money out of it.

  • Installation of Windows 7 via USB External HDD (Boot Camp Assistant)

    How do I mount Windows 7 Ultimate disk image (.iso) onto my USB external HDD so that I can boot using that USB external HDD? I have tried reEFIt, but it doesn't work for me. It may be because I did something wrong. I would appreciate a comprehensive guide. Thanks.

    i suspect you haven't prepared the USB drive as a boot volume.
    You can absolutely do this. It is detailed on CNET in the following article: http://reviews.cnet.com/8301-31012_7-20020513-10355804.html

  • Can't boot Arch from external HDD

    Hi, well first off this is not my first Arch Linux installation, I'm using Arch for a little over a year now (coming from slack). But this is my first attempt to have Arch on an external HDD.
    Alrighty, the situation is as follows: A rather new computer (supports booting from USB devices and the bios is set to boot from removable devices first) with a built in HDD and an external HDD that's connected to that computer via USB.
    What I did: I connected the external HDD to the computer and booted off a 2008.6 Overlord core-CD.
    Arch-Live recognized the internal HDD as sda and the external HDD as sdb.
    I partitioned the external HDD using cfdisk and ran mkfs.ext3 on it (I didn't use any switches with that).
    I started the installer, set my mount points (I should mention I'm not gonna use a swap partition here), installed the packages, well just went through the installation routine and installed grub in the MBR of sdb (the external HDD).
    Then I rebooted. And this is what doesn't work: When I boot that computer with the external HDD connected the computer completely hangs right before grub would come up. It freezes completely, ctrl+alt+del doesn't work, I need to use the powerswitch to reboot the computer.
    So I put the Arch-CD back in the CD drive trying to boot into my Arch System on the external HDD. So I started typing:
    root (hd1,0)
    kernel /boot/vmlinuz26 root=/dev/sdb1 ro vga=773
    initrd /boot/kernel26.img
    When I try to boot off that grub tells me that there is no such device as hd1,0. The funny thing is, that the auto copmletion in grub works for the kernel /boot/vmlinuz26 but it doesn't for the device /dev/sdb1, in fact even root=/de<tab> returns a "unrecognized string" message.
    So this is what I did and I can't boot off my external HDD, neither can I boot into my system on the external hdd from the cdrom.
    What am I missing here?

    The harddrive you boot from is in my experience always hd0. Could this mean your external disc is hd2?
    Have you tried chainloading from the installer cd to your external disc?

  • IBook won't connect to USB External Hard Drives

    I'm having a very strange issue with my ibook.
    I have three external hard drives (two of the three can use usb and firewire). If I connect them with firewire they work fine. Same thing goes for usb flash drives and usb devices (mouse, keyboards, ect.), but if I connect a usb external hard drive it refuses to read it. It gets power but it will not appear on my mac .....
    Now, I don't know if this has anything to do with it but a few years ago I was dj'ing with one of the hard drives that uses usb and firewire (it was connect using usb at the time). Something happened and the hard drive just stopped working. I thought it crashed at first. Its a western digital and every dj I know who has had a western digital has had it crash on them. I took it home and hooked it up to my pc just to make sure it was dead and it ran fine. Matter of fact I can still use it on my mac, firewire only though. Now no matter what type of external hard drive it is, if I am using usb it refuses to load on my mac.
    Any ideas on why this would happen?
    Also, the other two hard drives are both verbatim

    The best idea I have is that the USB bus in your computer isn't supplying enough power to your devices. You could try picking up a powered USB hub and using that to see if that helps.
    Alternatively, reset the PRAM, as outlined here:
    http://support.apple.com/kb/ht1379
    and the PMU as outlined here:
    http://support.apple.com/kb/HT1431
    ~Lyssa

  • Can i connect two monitors to my mac book pro with HDMI?

    can i connect two monitors to my mac book pro with HDMI?

    I retract my previous "No." If you can live with limited performance (slow refresh/choppy action video/no gaming) on the second external monitor, you could use a USB video adapter and a DVI-HDMI adapter to connect it to a USB port on your computer.
    http://eshop.macsales.com/item/NewerTech/VIDU2DVIA/
    Just a note about the system information that appears below your post: iOS 4.3.3 does not run on Macs, only on iPods, iPads and iPhones. When you're posting about your MBP, it would be more useful to those responding to know which version of Mac OS X you're running. Doesn't matter for purposes of this post, but something to remember for future posts.

  • Automount of SD card & USB external HDD with strange KDE pop up msg

    Today I reviewed lots of threads posted over the last year and some bug reports too about this issue, but it's happening for me too. Both SD card and USB external HDD have autodetectable filesystems on them because I can mount them by hand with "mount /dev/mmcblk0p1 /mnt" and "mount /dev/sdb1 /mnt". But it would be nice if I didn't have to do that.
    Although I didn't notice which explicit install that I did pulled them in as dependencies, I do have udisk2 and polkit installed. Also installed udiskie as a wrapper. I've been mounting these volumes by hand before now because I feel like I'm still learning the ropes of The Arch Way and guessed (apparently incorrectly) that mounting volumes by hand was just part of "The Arch Way". But based on some threads here and some bug reports, I guess this used to work in Arch but has been causing some problems for some people lately when they upgrade. I just installed Arch for the first time (using the 2015.02.01 iso image), so I don't have any background to go on.
    So what is The Arch Way for automounting external drives? I've skimmed the wiki article for this and because "Development of udisks has ceased in favor of udisks2." it seems that udisks2 is preferred. But it got installed and the daemon is running for me. The user is in the wheel group. dbus is running (though like one person who filed a bug, I too have several instances of dbus in my ps -aux output and I'm not sure if that is as it should be or not). I've done no special configuration ("not wittingly" anyway; I promise, my name is not James Clapper) that I think would have affected this.
    So for a newb with no special preference, how should automounting be configured in a new Arch system? In other words, what should be my first steps in trying to solve this problem for myself? I know there are lots of different ways to skin this cat, but I'd prefer the simplest and most elegant solution that does not depend on KDE or GNOME or other unnecessary tools. I've just (with this Arch system I just installed) begun using i3wm and I think I'll be sticking with it. That said, however, it's clear that I inadvertently/unwittingly managed to get some elements of KDE into memory as the following http://gamonics.org/img/2015-02-26-1731 … _scrot.png shows. This popped up both times, when I plugged in my SD card and when I plugged in my USB drive. Any thoughts on what's going on here? I did install okular explicitly because I think it's one of the best PDF viewers, but I don't understand why KDE is reporting anything to me when I'm running i3 and insert an SD card or a USB disk.
    And in the terminal, I get this output (apparently from udiskie):
    [root@archippocrates archie]# Failed to show notification: The connection is closed
    not adding /org/freedesktop/UDisks/devices/mmcblk0: unhandled device
    mounted /org/freedesktop/UDisks/devices/mmcblk0p1 on /media/3532-3338
    Failed to show notification: The connection is closed
    Although the volume does get mounted automatically.
    Thanks for any thoughts.
    -- mod edit: read the Forum Etiquette and only post thumbnails http://wiki.archlinux.org/index.php/For … s_and_Code [jwr] --
    Last edited by Gamonics (2015-02-27 00:25:01)

    I personally can't answer the question of "simplest and most elegant" way of mounting devices. It all depends on what you want. If you expect more exotic functionality, say correct unmounting of devices if they were disconnected during a sleep cycle, there's probably no way around udisks2. For that you get a complex piece of software prone to... unexpected behaviour. Mind you some of it is related to front-ends like GVFS.
    As to your KDE issues, last I checked mount handling was disabled by default there, but you can control it manually (see man kcmshell4). Though I haven't followed up on KDE 5 developments. If going with udisks2, I'd recommend using devmon from the udevil package as a front-end (more details on the wiki udisks page).
    PS: multiple dbus instances are expected, check the user names and specified arguments in the ps output.
    edit: grammar. :X
    Last edited by Alad (2015-02-27 17:03:31)

  • Can I connect two firewire devices?

    Ideally, I need two firewire devices running at the same time: One camera to capture footage and one firewire external hard disk for the media files (about 160 GB).
    a) I've been told that I need a firewire external disc, because a USB hard disk would slow down the editing in Final Cut. Is this true?
    b) If so, can I connect two firewire devices to my MBP (74.53 GB internal hard disk), which has only one 400 Firewire port?

    1. Yes, FireWire is faster than USB. However, it would be better to edit on your main hard drive. Use the external drive just for storage and backup.
    2. You can chain up to 255 FireWire devices provided the total power requirements did not exceed the port's capabilities. A single FireWire drive and a camera shouldn't be a problem. However, you should know that some FireWire cameras may not play well with other FireWire devices. If you find apparent problems when both are connected to the port, then you may need to use each separately. In this case you may need to put the hard drive on a USB port while the camera is connected to the FireWire port unless the camera also supports transfers on USB 2.0.

  • USB External HDD Enclosure with a 500GB HDD!!

    Hi All,
    I was just wondering if anyone has come across using a 3rd party USB external HDD enclosure with a hard drive (mine is 500GB HDD). What I am trying to do is to format the HDD so both PC and MAC can use it but it will be mainly connected to my iMAC. I have tried by using PC to format the HDD to NTFS but MAC will not show the HDD on the desktop when I plug the USB to the back of the iMAC.
    I have done some researches and it seems the only way to do make this possibe is to format it into FAT32. So I have tried to use FDisk to make the partition but it doesn't seems to support anything bigger than 120GB, now I am really stuck. If anyone knows any quick and painless solution, please spare me some advice.
    Headache!!
    Dave
    iMAC 20" Core2 Duo 2.16 1GB Mac OS X (10.4.9) Mac OS X (10.4.9)

    Windows can use, but not format, large FAT32 partitions. Microsoft wants to discourage using FAT32 for portable storage (for marketing reasons).
    The solution is to use Mac's Disk Utility to format the disk as FAT32 (misnamed MS-DOS in Disk Utility). The disk will then be read/write by both Mac and PC.
    Also, it's worth pointing out that you can read and write NTFS disks using MacFUSE with the NTFS-3G plugin. Albeit, this is very awkward to do unless you've got some UNIX shell experience.

  • Can I connect two monitors to a Mac Mini?

    Can I connect two Monitors to a mac mini

    Yes, but how depends on what model of Mini and what kind of monitors.  Early models only had one monitor port.  Later models had a Mini-DVI port and a Mini-Displayport.  Current models have a Mini-Displayport and a HDMI port.  The Mini-DVI and Mini-Displayport can attach VGA or DVI monitors, whereas the HDMI port can't use VGA monitors.
    Beyond that, you can get Matrox's DualHead2Go or a USB->VGA or USB->DVI adapter.  The Matrox product is a bit expensive and the USB adapters are a bit to slow for games and such.  So, again, the answer is "yes", but with limitations

  • Can I use a Usb external hard drive on my macbook pro?

    I have a new macbook pro and have tried to connect my usb external hard drive , it shows up on the home screen and i can view and read only i cannot save anything into the external hard drive can anyone help.

    Yes. You have to prep it for your Mac. Currently it's setup for Windows.
    Drive Partition and Format
    1. Open Disk Utility in your Utilities folder.
    2. After DU loads select your hard drive (this is the entry with the mfgr.'s ID and size) from the left side list. Click on the Partition tab in the DU main window.
    3. Under the Volume Scheme heading set the number of partitions from the drop down menu to one. Click on the Options button, set the partition scheme to GUID then click on the OK button. Set the format type to Mac OS Extended (Journaled.) Click on the Apply button and wait until the process has completed.
    4. Select the volume you just created (this is the sub-entry under the drive entry) from the left side list. Click on the Erase tab in the DU main window.
    5. Set the format type to Mac OS Extended (Journaled.) Click on the Security button, check the button for Zero Data and click on OK to return to the Erase window.
    6. Click on the Erase button. The format process can take up to several hours depending upon the drive size.

  • Can I Connect a USB Hard Drive Directly to the IX4-300D?

    I need to copy large amounts of data from a USB hard drive to the IX4-300D. So can I connect the USB hard drive directly to the USB port on the IX4-300D?
    If "yes", how does the USB hard drive show up in Windows so I can select the file to copy?

    Hi exceptionalht,
    The USB ports are intended for external storage devices such as flash drives and USB hard drives. Once you connect the hard drive to the USB port, the device's content will show up as a new share in the Shares page. You should be able to map that share in Windows or have Storage Manager map it automatically.
    To safely remove the external hard drive, go to the External Storage page and click the eject icon for that device.
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