|Item Weight||0.8 ounces|
|Product Dimensions||2 x 1.2 x 0.2 inches|
|Item model number||900718|
|Manufacturer Part Number||900718|
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VisionTek 120GB USB 3.0 Pocket Solid State Drive - 900718
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- Built for rugged portability: No moving parts and an aluminum housing safeguards your data from drops and impacts.
- SuperSpeed USB 3.0 performance: Up to 455MB/s reads and 440MB/s writes... up to 10 times faster than USB 2.0!
- UASP mode support: enables multiple simultaneous commands for faster and more efficient transfers as well as lowers CPU utilization.
- DuraClass Technology: Ultra-efficient block management & wear leveling offers maximum drive and data reliability.
- Use with nearly any computer: Compatible with Windows, Mac, and Linux systems with a USB 3.0/2.0 interface.
- Keychain grommet: allows the drive to easily attach to a set of house / car keys.
- US Made & Supported: Designed and built in the US with the highest quality components and backed by free lifetime US-based Tek support.
- TAA Compliant: Assures government contractors and government buyers this product is assembled in the U.S.A and is in compliance with the Trade Agreements Act.
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This item VisionTek 120GB USB 3.0 Pocket Solid State Drive - 900718
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|Sold By||Amazon.com||biddeal_co||Amazon.com||Ehaimen||Deals by Jake||etailz|
|Hardware Connectivity||USB 3.0, USB 3.0||USB 3.0||USB 3.0, USB 3.0, USB 3.0||USB 3.0, USB 3.0, USB 3.0||USB 2.0, USB 3.0||USB 3.0, USB 3.0|
|Item Dimensions||1.2 x 2 x 0.2 in||1 x 3.1 x 0.4 in||0.84 x 0.45 x 2.79 in||1.2 x 2 x 0.2 in||1.2 x 2 x 2 in||0.4 x 0.8 x 2.9 in|
|Item Weight||0.8 ounces||1.6 ounces||0.64 ounces||2.56 ounces||—||1.92 ounces|
|Memory Storage Capacity||120 GB||128 GB||64 GB||128 GB||128 GB||120 GB|
Whether you’re wanting to transfer large files such as uncompressed images, back up an entire system, or create a pocket-size boot-able operating system drive, the VisionTek USB 3.0 Pocket SSD is the performance and convenience solution for creative professionals, IT power users, and anyone seeking ultra-fast media and large file transfers. While the VisionTek USB Pocket SSD looks like any other high-capacity flash drive with a USB 3.0 connector, that’s where all similarities end. More than pure storage, it’s a full-blown Solid State Drive featuring a high-performance SandForce controller. That means you’ll experience up to 455MB/s Reads and up to 440MB/s Writes... as quick as the fastest internal SSDs, yet with the proper set-up, you can run a variety of operating systems with full capabilities. No matter where you are, you’ll be able to access a PC or Mac, just plug the drive into a computer and you can start working at supercharged speeds!
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Top Customer Reviews
Here are some xbench scores...
Xbench Version 1.3
System Version 10.9.4 (13E28)
Physical RAM 8192 MB
Drive Type VT SSD USB 3.0 (VisionTek)
Uncached Write 243.52 MB/sec [4K blocks]
Uncached Write 197.65 MB/sec [256K blocks]
Uncached Read 25.28 MB/sec [4K blocks]
Uncached Read 200.92 MB/sec [256K blocks]
Uncached Write 120.93 MB/sec [4K blocks]
Uncached Write 214.71 MB/sec [256K blocks]
Uncached Read 17.70 MB/sec [4K blocks]
Uncached Read 186.30 MB/sec [256K blocks]
Drive Type Corsair Voyager GTX
Uncached Write 157.33 MB/sec [4K blocks]
Uncached Write 126.09 MB/sec [256K blocks]
Uncached Read 18.89 MB/sec [4K blocks]
Uncached Read 216.76 MB/sec [256K blocks]
Uncached Write 10.46 MB/sec [4K blocks]
Uncached Write 86.15 MB/sec [256K blocks]
Uncached Read 17.54 MB/sec [4K blocks]
Uncached Read 213.69 MB/sec [256K blocks]
Drive Type APPLE SSD SD0128F (internal drive of my retina late 2014 macbook pro)
Uncached Write 346.57 MB/sec [4K blocks]
Uncached Write 287.13 MB/sec [256K blocks]
Uncached Read 85.86 MB/sec [4K blocks]
Uncached Read 437.08 MB/sec [256K blocks]
Uncached Write 90.49 MB/sec [4K blocks]
Uncached Write 205.94 MB/sec [256K blocks]
Uncached Read 25.41 MB/sec [4K blocks]
Uncached Read 216.65 MB/sec [256K blocks]
I called VisionTek and after some unsuccessful troubleshooting I was told that they didn't really know how it would perform on a mac because all of their testing was on PC's. They said that the product didn't sound like it was defective and that I could go through Amazon if I wanted a refund. I guess that's what I'll do.
The reason that I decided on a one star review is not only that their claimed speeds are false (on a mac), but also that they offer zero support for an operating system that is listed as supported on the packaging. Why would you list a supported operating system if you've never tested your product on it?
Anyway, mac users be wary. If there are any mac users who have had success with this product I'd be happy to give it a second chance. I really want it to work...
My hunch is that there is a design bug in the firmware in the device controller. The device works flawlessly (my hunch) for awhile. Active regions in the filesystem (metadata, etc), get written very often, followed my immediate re-reads. This eventually results in the "wear leveling" firmware to get invoked, which maps out (or moves out) the "hot" sector with a fresh one, with a low write count. My guess is that while this operation is being performed the OS re-reads the sector while the wear-leveling is in progress, and receives bogus data, thus corrupting the filesystem and crashing the OS.
It is easy to reproduce. I used both Windows 10 Enterprise TOGO X64. and Windows 10 PRO X64. If using Windows 10 PRO, one must install it first onto a regular (non USB) drive, and then image it over to the USB device. It will boot and run fine at first. Download and install Malwarebytes trial. Now startup full virus scans of the installed OS using both Malware bytes, and Windows Defender (part of Windows).
Things work fine for six or seven passes. At this point some sectors may be ready for wear-leveling, and the hangs, and filesystem corruptions start. It takes an hour or two and is completely reproducible. After a filesystem corruption, I reload the USB with a fresh image of the same OS installation. (the filesystem hotspots are in the same place). Even after reloading the USB, it will be lucky to make it one pass through the virus scans before crashing/corrupting.
However, when this device (after failing OS/corruption) is used for "normal" USB type operations (not running an OS), such as saving a backup image, it works fine at full speed. Backed up data to the USB device, comes back with good checksums.
I opened a case with VisionTek customer service, and updated it a few times, requesting that they notify engineering of this. I have heard nothing back. I even gave them the procedures to demonstrate the corruption.
If I did not need to use this device to run a bootable OS, I would give it four stars.. with the only other issue being the
large slowdown when it heats up on large transfers. If you are only doing a few GB, then it would be 5 stars.
Also, one can take a "regular" SATA SSD drive (e.g. a Samsung), put it in a USB 3.0 adapter, and plug that in to a USB port,
and run the same OS tests above, and it will run fine for days with no corruption. The test machines I used were only USB 2.0,
which might indicate that the wear-leveling operation has a wide window (milliseconds?)
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