USB 3.0-Based 2.5" Hard Disks From Adata, Hitachi, And WD

Hitachi Touro Mobile Pro (750 GB, HTOLMNA7501BBB)

We previously tested the 500 GB Hitachi Touro Mobile Pro, and it proved to be one of the fastest 2.5” drives we've seen. In fact, it claimed a ranking in the top third of our USB 3.0 Storage Charts. The 750 GB version (HTOLMNA7501BBB), which sells for less than $100, is slightly faster still.

The piano black Touro Mobile Pro sports a USB 3.0 interface like its smaller sibling, and it also boasts a 7200 RPM drive inside. But that's where similarities to the 500 GB model end. The 750 GB version is the fastest external 2.5” drive we have ever tested. Its maximum sequential read rate of 125.6 MB/s and its maximum write speed of 125.5 MB/s make it the new speed king, pushing the previous winner, Samsung's S2, down one spot, even though the S2 is still better with small files.

It's also worth noting that, while Samsung's S2 loses out to Hitachi's Touro Mobile Pro in synthetics, it remains faster in real-world metrics, such as the copy test.

Hitachi's drive is positioned as a professional product for backing up data. Although it can be used to save information from the cloud, the Touro Mobile Pro is also capable of putting data into the cloud through a bundled application called Hitachi Backup. The software includes 3 GB of online storage space, and is upgradeable to 250 GB for $49 per year. The box also contains a quick-start guide and a USB 3.0 cable.

Hitachi Backup may not be feature-rich, but this Flash-based application is easy to use. By default, it copies the logged-in user's data to the external drive or the cloud either at pre-defined times or on demand. You can specify different folders for the two backup targets, and also define the number of revisions to keep. The latest backup is available in a folder named “Current,” and older backups are found in “Archived.” With a slider, you can specify the bandwidth usage of the cloud backup function as “Low,” “Medium,” or “High”.

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    Top Comments
  • thezooloomaster
    alidanhow fast is usb3? i mean real world, say you put a ssd in the best enclosure, what would it do?


    The theoretical bandwidth of USB 3.0 is roughly 625 MB/s, but this speed is rarely achieved -- even with the fastest hardware -- because the bus relies on a protocol for transferring data which is poorly optimized and eats up a chunk of the bandwidth.
    16
  • Other Comments
  • alidan
    how fast is usb3? i mean real world, say you put a ssd in the best enclosure, what would it do?
    0
  • thezooloomaster
    alidanhow fast is usb3? i mean real world, say you put a ssd in the best enclosure, what would it do?


    The theoretical bandwidth of USB 3.0 is roughly 625 MB/s, but this speed is rarely achieved -- even with the fastest hardware -- because the bus relies on a protocol for transferring data which is poorly optimized and eats up a chunk of the bandwidth.
    16
  • shahrooz
    alidanhow fast is usb3? i mean real world, say you put a ssd in the best enclosure, what would it do?

    I get like 70~140 MB/s (copying from WD my passport 1TB to my WD HDD (7200rpm black))
    and I get 30~40 MB/s copying from USB 2 WD my book 2TB to ^^^^^^^^^^^^^^^
    7
  • willyroc
    shahroozI get like 70~140 MB/s (copying from WD my passport 1TB to my WD HDD (7200rpm black))and I get 30~40 MB/s copying from USB 2 WD my book 2TB to ^^^^^^^^^^^^^^^

    USB 3 is more than twice as fast as USB 2.
    -6
  • tridon
    I'm sitting here, daydreaming about a Velociraptor external drive. Maybe that would be able to use the USB 3's capacity better, or maybe something's slightly wrong in my head for wishing for such a thing.
    0
  • ojas
    willyrocUSB 3 is more than twice as fast as USB 2.

    Yeah but you're still limited to both the source and destination drive's read/write speed. So when copying from a HDD to an HDD, you're unlikely to exceed 140 MBps.

    If you're copying from a SATA 3 SSD to a USB 3.0 SSD, then yes, you could see much faster speeds.
    9
  • jaquith
    USB 3.0 + UASP (or) eSATA (or) Internal (SATA 2 or 3) HDD.

    USB 3.0 in most instances isn't ready for prime time for external HDD's, and without UASP the queuing is too slow; UASP solves this problem. Otherwise without UASP IMO use eSATA or a backup internal SATA HDD.

    More info see TH article June 20th, 2012 - http://www.tomshardware.com/reviews/usb-3-uas-turbo,3215.html

    Note: The Hitachi Touro fails (BSOD) in Windows 8.
    2
  • ubercake
    So... Theoretically USB 3.0 is faster than eSata, but in practice eSata is still the way to go?
    8
  • LukeCWM
    ubercakeSo... Theoretically USB 3.0 is faster than eSata, but in practice eSata is still the way to go?

    Yes.
    7
  • alidan
    shahroozI get like 70~140 MB/s (copying from WD my passport 1TB to my WD HDD (7200rpm black))and I get 30~40 MB/s copying from USB 2 WD my book 2TB to ^^^^^^^^^^^^^^^


    that 1tb is in a better case than the 2tb
    what i have noticed with usb 3 is that, yes while its theoretical max is higher than current hdd and ssds should achieve, the fact of the matter is they never hit that peak.

    thats why im wondering, with an ssd, what is the best we can get usb3 to.
    you proved that current normal hdds in a good case do not have a problem in usb 3, and for that i thank you.
    -2
  • invlem
    ubercakeSo... Theoretically USB 3.0 is faster than eSata, but in practice eSata is still the way to go?


    Well Yes and No... It really depends on your application, eSata may be faster, but USB is still more usable/universal.

    If you're planning on using the drive for back up purposes eSata and know all the devices you are going to use it with support eSata, then it is probably the better solution.

    If you want it for mobility purposes, transferring files to various destinations, USB is more reliable. First these usb3 drives are self powered, meaning no AC adapters to worry about, the PC provides the power, also since its backwards compatible with usb2.0 100% of the devices you want to plug into will work, eSata is great but its not nearly as widely adopted as usb... I'd rather transfer my files slowly at usb2.0 speeds to my destination system, than not at all due to a lack of eSata ports.
    3
  • alidan
    invlemWell Yes and No... It really depends on your application, eSata may be faster, but USB is still more usable/universal. If you're planning on using the drive for back up purposes eSata and know all the devices you are going to use it with support eSata, then it is probably the better solution. If you want it for mobility purposes, transferring files to various destinations, USB is more reliable. First these usb3 drives are self powered, meaning no AC adapters to worry about, the PC provides the power, also since its backwards compatible with usb2.0 100% of the devices you want to plug into will work, eSata is great but its not nearly as widely adopted as usb... I'd rather transfer my files slowly at usb2.0 speeds to my destination system, than not at all due to a lack of eSata ports.


    from what i understand.
    a usb3 case that takes full advantage of the harddive is hard to find, much less cheap
    how ever a esata case can be found for under 30$

    so really it comes to how you are going to use the hdd...

    personally i want to take all moving parts out of my computer besides fans, so i could go with esata and be happy, but if you want more or less a guarentee that you will be able to hood that drive up to almost anything you can think of, even a bad usb3 case would be better.
    0
  • Fennec
    I have a few USB 2,5 drives and the best transfer rate I ever had was 20 mo/s
    0
  • Fennec
    I have a few USB 2,5 drives and the best transfer rate I ever had was 20 mo/s
    0
  • azraa
    @Fennec
    You probably have USB 2.0 devices, paired with a motherboard with a not really good (or without proper drivers) Chipset. Most USB 2 can reach up to 30 to 40, as stated earlier, but this is with higher tier chipsets.
    0
  • palladin9479
    A note to some people about eSATA, as of SATA 2.0 it's no different from regular SATA. It has a different connector as it supports a shielded cable that allows for longer connections, it also allows for a slightly higher signaling voltage. In all other aspects it's identical to using a SATA connector on the inside of your PC. You can find eSATA brackets for $15 USD which allow you to turn any SATA port into an eSATA port, most BIOS's even support the disconnect command for it (set port to removable). For that reason alone eSATA will be the better bus for bulk data transfer, it having proper DMA support (vs the hacked method of USB) is icing on the cake.
    0
  • vkg1
    Looks like if you already have a Firewire 800 drive and card then there isn't much reason to drop coin for a USB 3.0 drive.
    0
  • thezefen
    i have a question, why my adata hd710 only can transfer at max speed 24mbps.
    even when i plug the hdd into my usb3 slot
    anyone can help me?
    0