Product ID: S251BU31315
This USB 3.1 Gen 2 single-drive enclosure gives you an ultra-fast, portable external storage solution for 2.5” hard drives or solid-state drives up to 15 mm in height. The enclosure provides quick access to your data wherever you go and it lets you retain your data after an upgrade to a new SSD or HDD in your computer.
The drive enclosure lets you leverage the high performance of the latest SSDs and HDDs. USB 3.1 Gen 2 also gives you greater bandwidth and speeds up to 10Gbps for ultra-fast access to your data. IT professionals, medical personnel, researchers, creative professionals and anyone else who needs easy access to their data on the go will benefit from this portable drive enclosure. The enclosure lets you quickly access your data, to browse your files and edit your documents.
The enclosure also provides you with easy drive access for data migration, drive cloning, and data backups so that you can safeguard your data at all times.
Unlike most drive enclosures, which only support SATA SSDs and HDDs up to 9.5 mm in height, this enclosure is compatible with virtually all 2.5" SATA drives up to 15 mm in height. Plus, it comes with a USB Type-C to Micro-B cable, for connecting to newer USB-C enabled laptops, tablets, and phones. A USB Type-A to Micro-B cable is also included to ensure backward compatibility with your existing USB 3.0 and 2.0 devices.
The enclosure is powered directly from the USB port on your device, which means no external power is required. For portable storage, you can tuck it away inside your laptop bag or carrying case and take it anywhere -- from your home to the office, the hospital, the lab, or out in the field, so that you can access your data wherever you go.
The enclosure is engineered with a sleek and durable aluminum housing to help keep your data safe and secure wherever you go. Its aluminum housing and venting help to dissipate heat and passively cool the drive in order to help prevent drive failure and data loss.
The S251BU31315 is backed by a StarTech.com 2-year warranty and free lifetime technical support.
|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|
|Compatible Drive Types||SATA|
|Chipset ID||ASMedia - ASM1351|
|Indicators||1 - LED Indicators||Power & Activity|
|Packaging Information||Package Height||41 mm [1,6 in]|
|Package Length||17,8 cm [7,0 in]|
|Shipping (Package) Weight||250 g [8,8 oz]|
|Package Width||13,3 cm [5,2 in]|
|Performance||Maximum Data Transfer Rate||10 Gbps|
|Type and Rate||USB 3.1 Gen 2 - 10 Gbit/s|
|Max Drive Capacity||Currently tested with hard drives up to 2TB at 7200 RPM|
|Max Drive Height||15 mm [0,6 in]|
|Product Length||12 cm [4,7 in]|
|Product Width||75 mm [3,0 in]|
|Product Height||21,5 mm [0,8 in]|
|Weight of Product||105 g [3,7 oz]|
|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||drive enclosure|
|USB-C to Micro-B cable|
|USB-A to Micro-B cable|
|5 - Included in Package||drive-mount screws|
|3 - Included in Package||enclosure screws|
|1 - Included in Package||quick-start guide|
Add one internal and one external SuperSpeed USB 3.0 to your PC
Flush mount a USB 3.0 ExpressCard adapter into a laptop ExpressCard slot
Add two flushmount USB 3.0 ports to your ExpressCard-enabled laptop
Add 2 USB 3.0 ports to your desktop computer through a PCI Express expansion slot
Add two USB 3.0 ports to your laptop through an ExpressCard slot
Connect USB Micro-B devices to your USB-C host, using this durable 1-meter cable
Upgrade your computer to the 10Gbps speed of USB 3.1 Gen 2, by adding two USB Type-C ports
Upgrade your computer to the 10Gbps speed of USB 3.1 Gen 2, by adding both USB Type-C and USB Type-A ports
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:
To test your setup components, try the following:
When you test the hard drive and hard drive enclosure, it is recommended that you do the following:
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.
Note: A formatted hard drive will not show up in Computer or My Computer until it has a drive letter assigned to it.
You should not upgrade your device's firmware if you do not have any issues with the functionality of your device. The only time you should consider an upgrade is if you are experiencing a problem with the device, and you have confirmed that the firmware addresses this problem. You can confirm this is the case by reviewing the documentation included with the firmware or by consulting with our Technical Support team. Incorrectly upgrading firmware can result in diminished performance so it is best to contact StarTech.com if you would like to perform this operation.
Yes, this device supports the TRIM command. If the OS issues a TRIM command, the command will be passed to the connected device.
To determine if your hard drive will work in this enclosure, on the product page, click the Technical Specifications tab, and do the following:
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).
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.
Press the Windows key + R, type compmgmt.msc, and click Run to open Computer Management.
Navigate to Disk Management.
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: https://www.startech.com/support/faqs/technical-support?topic=hard-drives#mbr-vs-gpt.
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.
Right-click Unallocated or RAW volume, and select New Simple Volume.
In the New Partition Wizard, click Next.
Select Primary partition.
Leave the partition size set to default, and click Next.
Assign a drive letter or leave it set to the default, and click Next.
Enter the following settings to format the partition:
The new drive should appear in Windows Explorer.
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).
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.
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:
Navigate to Applications and click Utilities.
Open Disk Utility.
Select the new drive and click the Partition tab.
Click Options and verify that it is set to GUID Partition Table.
Enter a name for the partition.
The drive should now be accessible in Finder.
For products related to this article, click here.
Check out our review guidelines.