USB 3.1 (10 Gbps) Enclosure for 2.5” SATA Drives

Get ready for ultra-fast USB 3.1 Gen 2 data storage using your 2.5” SSD or HDD

Product ID: S251BMU313

3.8 stars (6 reviews) |
  • Create an ultra-fast USB 3.1 Gen 2 (10 Gbps) storage solution for a single 2.5” SSD or HDD drive
  • Supports SATA I, II and III (up to 6 Gbps)
  • Compact, portable design in a sleek brushed aluminum enclosure
Your price
$85.99 NZD excl. GST
$98.89 NZD incl. GST

Now, access your data in record time with the superior performance of USB 3.1 Gen 2 (10 Gbps). This single-drive enclosure gives you a powerful external storage solution.

Photo of USB 3.1 Gen 2 aluminum enclosure (S251BMU313) on laptop bag showing easy portability

Ultra fast, ultra portable data storage

The enclosure turns your 2.5in SATA solid-state or hard drive into ultra-fast, ultra portable data storage. Its lightweight, compact design allows it to be tucked easily into a laptop bag or carrying case. Engineered with a durable and sleek brushed aluminum housing, it’s equipped to keep your data safe and secure wherever you go.

Harness the speed of USB 3.1 Gen 2

USB File Transfer Rates diagram shows USB 3.1 Gen 2 at 10 Gbps is twice the speed of USB 3.0  at 5 Gbps

USB 3.1 Gen 2 gives you greater bandwidth and speed with file transfer rates of up to 10 Gbps - twice the speed of USB 3.0 (USB 3.1 Gen 1) technology. It lets you leverage the high performance of the latest SSDs and hard drives, while alleviating bottlenecks in your data transfers.

Powered directly from the USB port

The enclosure connects easily to a host computer through USB 3.1 Gen 2, with no external power required. It is equipped with a USB A to Micro B cable, providing backward compatibility with existing USB ports or hardware. It also provides UASP support for enhanced performance.

The S251BMU313 is backed by a 2-year warranty and free lifetime technical support.


  • Take advantage of new laptops and desktops with ultra-fast USB 3.1 Gen 2 (10 Gbps) connectivity
  • Create a fast, portable external storage solution for desktops, laptops or netbooks with this metal enclosure, providing durable performance in demanding environments
  • Use your SATA SSD/HDDs at maximum speed
  • Back up important data to an external storage device
  • Share large files between computers quickly and securely without a network
  • Retrieve data from old SATA drive, or turn the unused drive into additional external storage space

Partner Numbers

  • Ingram Micro New Zealand 2965457
  • UPC 065030861489


  • OS Independent logo
OS independent; No software or drivers required


Warranty Information Warranty 2 Years
Connector(s) 1 - Drive Connectors SATA Data & Power Combo (7+15 pin)
1 - Host Connectors USB 3.1 USB Type Micro-B (10 pin, Gen 2, 10 Gbps)
Environmental Operating Temperature 0°C to 40°C (32°F to 104°F)
Storage Temperature -10°C to 65°C (14°F to 149°F)
Humidity Operation Humidity: 10% ~ 90% RH
Storage Humidity: 5% ~ 95% RH
Hardware Interface USB 3.1 Gen 2
Bus Type USB 3.1 Gen 2
Number of Drives 1
Drive Size 2.5in
Compatible Drive Types SATA
Drive Installation Fixed
Fan(s) No
Chipset ID ASMedia - ASM1351
Indicators 1 - LED Indicators Power & Activity
Packaging Information Package Height 1.3 in [33 mm]
Package Length 6.4 in [16.2 cm]
Shipping (Package) Weight 5.8 oz [164 g]
Package Width 5.1 in [13 cm]
Performance Maximum Data Transfer Rate 10 Gbps
Type and Rate USB 3.1 Gen 2 - 10 Gbit/s
UASP Support Yes
TRIM Support Yes
4Kn Support Yes
Type and Rate SATA III (6 Gbps)
Max Drive Capacity Currently tested with hard drives up to 2TB at 7200 RPM
Physical Characteristics Weight of Product 2.8 oz [78 g]
Color Black
Material Aluminum
Max Drive Height 0.4 in [9.5 mm]
Product Length 4.8 in [12.3 cm]
Product Width 3.0 in [75 mm]
Product Height 0.5 in [1.2 cm]
Power Power Source USB-Powered
Software OS Compatibility OS independent; No software or drivers required
Special Notes / Requirements Note Windows 7 and earlier Windows versions do not support TRIM with USB to SATA devices.
What's in the Box 1 - Included in Package USB 3.1 to SATA enclosure
USB 3.1 A to Micro B cable - 18 inches
7mm - 9.5mm SSD spacer
protective case
quick start guide
4 - Included in Package assembly screws



2-Port USB 3.1 (10Gbps) Card - 2x USB-A - PCIe

Upgrade your computer to the faster speed of USB 3.1, by adding two 10Gbps USB Type-A ports

Your price
$48.99 NZD excl. GST
$56.34 NZD incl. GST

Slim Micro USB 3.0 Cable - M/M - 15cm (6in)

Minimize clutter and position your USB 3.0 Micro devices near your desktop or laptop computer easily, with a thin, flexible cable

Your price
$15.99 NZD excl. GST
$18.39 NZD incl. GST

0.5m (1.5ft) Black SuperSpeed USB 3.0 Cable A to Micro B - M/M

Connect a USB 3.0 Micro USB external hard drive to your computer

Your price
$17.99 NZD excl. GST
$20.69 NZD incl. GST


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Frequently Asked Questions


When you troubleshoot issues with a hard drive enclosure, there are some quick tests that you can complete to rule out potential problems. You can test to make sure that the following components are working correctly and are not the source of the issue:

  • Cables
  • Hard drives
  • Hard drive enclosure

To test your setup components, try the following:

  • Use the cables, hard drives, and hard drive enclosure in another setup to see if the problem is with the components or the setup.
  • Use a different cable, hard drive, and hard drive enclosure in your setup to see if the problem persists. Ideally, you should test a component that you know works in another setup.

When you test the hard drive and hard drive enclosure, it is recommended that you do the following:

  • To check Disk Management, press the Windows key + R, type diskmgmt.msc, and press Enter. Check to see if your hard drive is listed.
  • If the hard drive is listed with unallocated space, the hard drive needs to be reformatted. Right-click unallocated and click New Simple Volume. Follow the on-screen instructions to complete the reformatting.​

Note: Formatting a hard drive erases all of the data on it. Make sure that you back up all of your data before you reformat the hard drive.​

  • If the hard drive is listed as healthy but does not have a drive letter, for example, C:, right-click healthy and click Change Drive Letter and Paths. Click Add, assign a drive letter, and click OK.

Note: A formatted hard drive will not show up in Computer or My Computer until it has a drive letter assigned to it.

If your setup components support USB 3.1 but you are experiencing slower transfer speeds than you expected, consider the following:

  • A USB host connection with multiple USB 3.1 ports might not be able to support 10Gbps on each port simultaneously.
  • The type of port on a device does not determine whether the device is capable of USB 3.1 speeds. A USB-C port might not support USB 3.1 speeds, while USB-A and USB-B ports might support USB 3.1 speeds.
  • Any other devices that you include in your setup, such as an older hard drive in a USB 3.1 enclosure, might create a point of congestion and slow down transfer speeds.

To confirm the functionality of your USB host connection, its ports, and any other devices in your setup, refer to the information provided by the manufacturer.

Note: USB 3.1 is also known as USB 3.1 Gen 2 (10Gbps). Devices that support USB 3.1 should have the USB 3.1 symbol on them. If the USB 3.1 symbol does not appear on your USB source or device, refer to the information provided by the manufacturer to confirm whether the USB source or device support USB 3.1.

Before You Buy

Hard drive enclosures require power from your system's USB port. Although you can plug in any standard SATA drive, USB ports only supply a limited amount of power and are not able to power all of the hard drives plugged into the system.

The power capabilities of the USB port combined with the power requirements of the attached hard drive will determine if the hard drive enclosure will work in your setup. The power (in mA) supplied by the USB port must be greater than the requirements of the hard drive.

A USB 2.0 port can supply a maximum of 500 mA (0.5 A), and a USB 3.0 port can supply a maximum of 900 mA (0.9 A).

You can usually find the power requirements of your hard drive in the technical specifications on the label of the hard drive or on the manufacturer's website.

To determine if your hard drive will work in this enclosure, on the product page, click the Technical Specifications tab, and do the following:

  • Make sure that the enclosure supports the storage size of your hard drive. If the storage size of your hard drive is larger than what the enclosure was tested with, the hard drive will likely still work with the enclosure.
  • Confirm that your hard drive uses the same interface type as the enclosure. For example, IDE, SATA, or M.2.
  • Make sure that the enclosure supports the physical size of your hard drive, such as 2.5 inches or 3.5 inches.
  • Make sure that the enclosure supports the height of your hard drive. For example, 9 mm or 15 mm.
  • Verify that the power consumption of your hard drive doesn’t exceed the power output of the enclosure. If you’re using multiple hard drives, make sure that the combined power consumption of all of the hard drives doesn’t exceed the power output of the enclosure.

USB 3.1 is the most recent version of the USB (Universal Serial Bus) standard for connecting computers and electronic devices. It is capable of data transfer speeds up to 10Gbps, and while it can use the USB-C connector type, it can also use a variety of other connector types. To achieve USB 3.1 transfer speeds, your USB host connection, cables, and device must all support USB 3.1. USB 3.1 is also known as USB 3.1 Gen 2 (10Gbps). 

USB 3.0 is capable of data transfer speeds up to 5Gbps. USB 3.0 is also known as USB 3.1 Gen 1 (5Gbps).

USB 3.1 is backwards compatible with USB 3.0 and USB 2.0, except in the following scenarios:

  • USB-B 3.1 cables are not compatible with USB-B 2.0 ports.
  • Unless you use an adapter, USB-C ports or cables will not work with USB-A or USB-B ports or cables.
  • Devices that require USB 3.1 transfer speeds of 10Gbps might not work with USB 3.0 or USB 2.0, or you might experience lower transfer speeds and impacted performance.
  • Bus-powered USB devices that requires more power than what USB 2.0 can provide are not compatible with USB 2.0.

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To transfer data at speeds of 10Gbps, you need to confirm that the following components in your setup support USB 3.1:

  • The USB host connection
  • The USB cable
  • The USB device and any subcomponents (for example, a hard drive docking station and the hard drives in the docking station)

Note: USB 3.1 is also known as USB 3.1 Gen 2 (10Gbps). Devices that support USB 3.1 should have the USB 3.1 symbol on them. If the USB 3.1 symbol does not appear on your USB source or device, refer to the information provided by the manufacturer to confirm whether the USB source or device support USB 3.1.

The included USB cable for this USB 3.1 Gen 2 device has been tested and verified to perform at USB 3.1 Gen 2 speeds of 10Gbps.

Hard Drives

Windows 10 

Before you can access a new or formatted drive in your operating system, you need to initialize it first and then create a partition on the drive. A partition defines an area of the drive to use for storing data. The partition uses a file system (for example, ex-FAT, NTFS, and so on).

Initialize a drive

Note: You typically only need to initialize a drive if the drive is new. If you cannot find an uninitialized drive in Disk Management, skip the following steps and try to partition your device.

  1. Press the Windows key + R, type compmgmt.msc, and click Run to open Computer Management.

  2. Navigate to Disk Management.

  3. When prompted to, initialize your disk(s). If you are running Windows® 7 or later and are using a drive larger than 2TB, initialize the disk(s) with GPT. If you are running an earlier version of Windows, initialize the disk(s) with MBR. For more information, visit the following FAQ:

  4. Click OK.

Create a partition in a drive

Note: The following steps create an NTFS partition that uses the entire drive space. To use a different file system, select a different option in step 6.

  1. Right-click Unallocated or RAW volume, and select New Simple Volume.

  2. In the New Partition Wizard, click Next.

  3. Select Primary partition.

  4. Leave the partition size set to default, and click Next.

  5. Assign a drive letter or leave it set to the default, and click Next.

  6. Enter the following settings to format the partition:

  • In the File System field, enter NTFS.
  • Set the Allocation unit size to Default.
  • In the Volume label field, enter <your name/reference>.
  • Select the Perform a quick format check box.
  • Clear the Enable file and folder compression check box.
  1. Click Next > Finish.

The new drive should appear in Windows Explorer.

Mac OS

Before you can access a new or formatted drive in your operating system, you need to initialize it first and then create a partition on the drive. A partition defines an area of the drive to use for storing data. The partition uses a file system (for example, HFS+, ex-FAT, NTFS, and so on).

Initialize a drive

Mac OSX detects a drive that needs to be initialized and automatically prompts you to initialize the drive. If you are prompted to initialize the drive, click Initialize. If you are not prompted to initialize the drive and you cannot find the drive in Finder, you will need to create a partition on the drive.

Create a partition on a drive

Note: The following steps create an HFS+ (Mac OS Extended (Journaled)) partition that uses the entire drive space.

To create a partition on a new drive, complete the following:

  1. Open Finder.

  2. Navigate to Applications and click Utilities.

  3. Open Disk Utility.

  4. Select the new drive and click the Partition tab.

  5. Click Options and verify that it is set to GUID Partition Table.

  6. Enter a name for the partition.

  7. Click Partition.

The drive should now be accessible in Finder.

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Compliance and safety

Compliance letters

Safety Measures

  • If product has an exposed circuit board, do not touch the product under power.
  • If Class 1 Laser Product. Laser radiation is present when the system is open.
  • Wiring terminations should not be made with the product and/or electric lines under power.
  • Product installation and/or mounting should be completed by a certified professional as per the local safety and building code guidelines.
  • Cables (including power and charging cables) should be placed and routed to avoid creating electric, tripping or safety hazards.
*Product appearance and specifications are subject to change without notice.

Customer Reviews

(6 reviews)
3.8 out of 5 stars
  • 5 (2)
  • 4 (3)
  • 3 (0)
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1 - 6 of 6 Reviews
(1 Stars)

poor important features

By: demian - 02/04/2017
yes it may have all the bells and whistles like usb 3.1 10gbps and uasp but no TRIM support. this case with the 10 gbps usb it's meant obviously for ssd not hdd , and the most important function of ssd is not supported. there for , until there is a firmware update , this is my overall rating of this enclosure.
| Helpful?
Sam, Customer Support on 16/01/2019 2:27:55 PM
Hello again, We're happy to report S251BMU313 now ships with full TRIM support. If you see any issues with using TRIM with this product, we encourage you to reach out to our Technical Advisory team at 1-800-265-1844 or and we'd be happy to help come to a resolution. We're available 24 hours a day, 5 days a week, to provide support. Thank you.
Barry, Customer Support on 16/02/2017 10:32:39 AM
Hello, Thanks for sharing your feedback with us. We appreciate it! You are correct; this does not have TRIM support. SSDs will work with the enclosure however despite that omission. Regarding HDD speeds, when using this with an SATA III 6Gbps drive, you will see a performance increase over using this with a standard USB 2.0 or 3.0 enclosure. USB 3.0 being capped at 5Gbps will not allow for an SATA III drive to operate at its maximum potential. Hopefully, this helps clarify the reasoning being some of the decisions made on the product (USB 3.1 10Gbps + HDD). I have also passed your feedback on to our development team regarding TRIM support. Thank you.
(4 Stars)

Nice fast and solidly built

By: Macphoto - 04/05/2017
If you are looking for a simple and fast enclosure then this is a really good piece. I found the installation of my SSD into this fast and easy and I am getting excellent transfer speeds. There is a spacer included for thinner drives which I did not need. The cable connection is solid. I do worry that over time plugging and unplugging may break this connection. I would like to see a slightly longer cord but that is me. I hate short cords. My only complaint about the enclosure itself if that I would think a conventional hard drive would not sustain much bumping or movement in this enclosure. Overall a very fast enclosure I received this product in exchange for an unbiased review.
| Helpful?
(5 Stars)

Perfect for SSD upgrades!

By: Andrew11 - 04/05/2017
This adapter was perfect for my latest SSD upgrade; after removing the old drive I was able to keep using it as external storage. The kit has everything you need to mount the drive inside, the enclosure is solid, very thin, and looks great. It even comes with a soft pouch to protect the finish. The USB cable is long enough to be useful but not so long as to get in the way. I tuck the cable and the enclosure into the pouch when travelling to keep them together. Works great! I received this product in exchange for an unbiased review
| Helpful?
(4 Stars)

Fast and solid

By: Nick423 - 04/27/2017
What can one say about a drive enclosure? It's metal, and solid, but I had to add a dab of silicone to keep the drive firmly in place and prevent rattling. The drive did not come off the connector inside, no matter how much a shook or bumped it, but since I'm using a spindle drive (after the bump testing...), the silicone helps make the whole assembly less worrisome. I would have liked to have seen a USB-C cable included as well as the standard format. But I bought one locally, and now can go between computers more easily. A longer cable would make this more IT-pro/datacenter friendly. Just saying.... Last note on the physical case... Being without any raised edges and all metal presents an opportunity and a challenge. The opportunity is that the smooth surface allowed me to add a Velcro strip (I do this to externals like this, along with my laptops, servers, and desk), so I can attach the drive and not worry about it getting bumped, sliding around, and even temporarily "part" of a laptop. Some enclosures make this more difficult with fancy shapes and raised details. On the challenge front, without securing the drive, the smooth metal slides all over the place. If using a spindle drive, be careful. Performance-wise, this thing maxes out the drive's capability on reads and writes. The enclosure is no longer the limiting factor. There are no noted compatibility issues when using the enclosure with MacOS, Windows, Linux, or a Chromebook. It just works, and read/write speeds are limited only by the drive, and the computer it's connected to. :) I received this product in exchange for an unbiased review.
| Helpful?
(4 Stars)

Great for SSD.

By: Luis123 - 07/19/2017
Got this enclosure and set it up with my 128 GB SSD and does what it was made for. I did test it with a regular drive and it can vibrate a little which is not a good thing, so, for SSD it is great and I was able to move from one system to another with a minimal install time. Good product.
| Helpful?
Brian, Customer Support on 21/07/2017 1:54:53 PM
Hi, Thanks for your feedback and review. If you used a 7mm spinning hard drive, try using the included 7mm to 9.5mm spacer. That should help reduce vibration that is caused by the drive spinning while in operation. We hope this helps. If you have any concerns, please reach out to our Technical Advisors by clicking "Support" at the top of our website. Thank you.
(5 Stars)

Great SSD 3.1USB Enclosure

By: Bob from Panama City - 05/17/2019
Backwards compatible with USB 2.0 and 3.0. Super rugged brushed black aluminum. Nice little spacer included for secure fit SSD installations. Better than any fixed external drive. When you fill your drive up, just pop open the case and install another. I'm using this with 2TB Samsung SSD. Super fast transfer. This is a real quality product. Thanks StarTech...Bob
| Helpful?
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