StarTech.com S251BU31315 User manual

Manual Revision: 08/25/2016
For the latest information, technical specications, and support for
this product, please visit www.StarTech.com/S251BU31315.
FR: Guide de l’utilisateur - fr.startech.com
DE: Bedienungsanleitung - de.startech.com
ES: Guía del usuario - es.startech.com
NL: Gebruiksaanwijzing - nl.startech.com
PT: Guia do usuário - pt.startech.com
IT: Guida per l’uso - it.startech.com
S251BU31315
Drive Enclosure for 2.5” SATA
SSD/HDD - USB 3.1 (10Gbps)
*actual product may vary from photos

Quick-start guide
FCC Compliance Statement
This equipment has been tested and found to comply with the limits for a Class B digital
device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable
protection against harmful interference in a residential installation. This equipment
generates, uses and can radiate radio frequency energy and, if not installed and used in
accordance with the instructions, may cause harmful interference to radio communications.
However, there is no guarantee that interference will not occur in a particular installation. If
this equipment does cause harmful interference to radio or television reception, which can
be determined by turning the equipment o and on, the user is encouraged to try to correct
the interference by one or more of the following measures:
• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and receiver.
• Connect the equipment into an outlet on a circuit dierent from that to which the
receiver is connected.
• Consult the dealer or an experienced radio/TV technician for help
This device complies with part 15 of the FCC Rules. Operation is subject to the following
two conditions: (1) This device may not cause harmful interference, and (2) this device must
accept any interference received, including interference that may cause undesired operation.
Changes or modications not expressly approved by StarTech.com could void the user’s
authority to operate the equipment.
Industry Canada Statement
This Class B digital apparatus complies with Canadian ICES-003.
Cet appareil numérique de la classe [B] est conforme à la norme NMB-003 du Canada.
CAN ICES-3 (B)/NMB-3(B)
Use of Trademarks, Registered Trademarks, and other Protected Names and Symbols
This manual may make reference to trademarks, registered trademarks, and other
protected names and/or symbols of third-party companies not related in any way to
StarTech.com. Where they occur these references are for illustrative purposes only and do not
represent an endorsement of a product or service by StarTech.com, or an endorsement of the
product(s) to which this manual applies by the third-party company in question. Regardless
of any direct acknowledgement elsewhere in the body of this document, StarTech.com hereby
acknowledges that all trademarks, registered trademarks, service marks, and other protected
names and/or symbols contained in this manual and related documents are the property of
their respective holders.

Quick-start guide
i
Table of Contents
Introduction............................................................................................1
Product diagram........................................................................................................................................ 1
Package contents...................................................................................................................................... 2
System requirements............................................................................................................................... 2
About USB 3.1 Gen 2................................................................................................................................ 2
Install a drive...........................................................................................3
Connect a drive to your computer ......................................................3
Prepare a drive for use ..........................................................................4
Windows OS................................................................................................................................................ 4
Mac OS .......................................................................................................................................................... 5
About the LED indicator........................................................................5
Technical support...................................................................................6
Warranty information............................................................................6

Quick-start guide
1
Introduction
You can use the S251BU31315 drive enclosure to access, transfer, and back up the data
stored on your 2.5 in. SSDs and HDDs. In addition to drives that are between 7 and
9.55 mm in height, the S251BU31315 also ts drives that are up to 15 mm high. The
S251BU31315 features USB 3.1 Gen 2 and SATA support.
Product diagram
Drive enclosure
*actual product may vary from photos
LED indicator
USB 3.1 Micro-B port
Enclosure screw
Drive tray
Drive connector
Drive-mount holes Drive-mount holes
Cutout

Quick-start guide
2
Package contents
• 1 x drive enclosure
• 1 x screwdriver
• 1 x USB-C to Micro-B cable
• 1 x USB-A to Micro-B cable
• 5 x drive-mount screws
• 3 x enclosure screws
• 1 x quick-start guide
System requirements
• USB enabled computer system with an available USB port
• 2.5 in. SSD or HDD
This drive enclosure is OS independent and doesn’t require any additional drivers or
software.
To obtain the maximum USB throughput, you must use a system with a USB 3.1 Gen 2
(10Gbps) port.
System requirements are subject to change. For the latest requirements, please visit
www.StarTech.com/S251BU31315.
About USB 3.1 Gen 2
USB 3.1 is also known as USB 3.1 Gen 2. This connectivity standard supports speeds up
to 10Gbps.

Quick-start guide
3
Install a drive
Warning! Drives should be handled carefully, especially when they’re transported.
If you’re not careful with your drives, you may lose data as a result. Always handle
storage devices with caution. Make sure that you’re properly grounded by wearing an
anti-static strap when you install any computer component. If an anti-static strap isn’t
available, touch a large grounded metal surface for several seconds to discharge any
built-up static electricity.
1. If the Enclosure screws are installed, use the provided screwdriver to remove the
screws from the sides of the drive enclosure.
2. Pull out the drive tray.
3. Gently slide the connector on your SATA drive into the corresponding Drive
connector on the drive tray. The connector on your SATA drive is keyed so that it
only ts one way.
4. Insert four of the drive-mount screws through the Drive-mount holes in the bottom
of the drive tray and into the drive.
5. Use the provided screwdriver to tighten the screws in place.
6. Slide the drive tray back into the drive enclosure.
7. Insert one of the Enclosure screws on each side of the drive enclosure.
8. Use the provided screwdriver to tighten the screws in place.
To remove a drive from the drive tray, push up on the drive through the square Cutout
on the underside of the drive tray.
Connect a drive to your computer
Note: To accommodate the type of USB port that your computer is equipped with, a
USB-A to Micro-B and a USB-C to Micro-B cable are provided with the drive enclosure.
When you connect the drive enclosure to your computer, make sure that you use the
cable that’s appropriate for your computer.
• After you install a drive in the drive enclosure, connect one of the provided USB
cables to the enclosure’s USB 3.1 Micro-B port and to the USB port on your
computer.
When you connect the drive enclosure to your computer and the OS automatically
installs the necessary software, the drive is accessible as though it’s installed internally
in the system. Before you use the drive, you need to prepare it for use and format it to
the requirements of your OS. For more information, see the“Prepare a drive for use”
topic.
Note: The drive enclosure doesn’t require an external power supply, as it receives
enough power through the USB bus that it’s connected to.

Quick-start guide
4
Prepare a drive for use
Windows OS
If you install a drive that already has data on it, after you connect the drive to your
computer, it appears under My Computer or Computer with a drive letter assigned
to it.
If you install a brand-new drive that doesn’t contain any data, you must prepare the
drive for use.
Warning! When you complete the following steps, all of the data on your drive will be
deleted. If your drive has data on it that you require, you should create a backup le or
use a dierent drive.
1. Depending on the OS version that you’re running, do one of the following:
• On your desktop, right-click My Computer and click Manage.
• On your desktop, right-click Computer and click Manage.
• Click the Start button or Windows icon. Enter compmgmt.msc and press
Enter.
2. On the Computer Management screen, click Disk Management.
3. A dialog window appears and asks you to initialize the drive. Depending on the
version of Windows that you’re running, you have the option to create either an
MBR or a GPT disk.
Note: GPT (GUID partition) is required for drives larger than 2 TB, but GPT isn’t
compatible with some earlier versions of operating systems. MBR is supported by both
earlier and later versions of operating systems.
4. Locate the disk that is labeled Unallocated. To conrm that the drive is the correct
one, check the drive capacity.
5. Right-click the section of the window that says Unallocated and click New Partition.
6. To initialize the drive in the format of your choice, complete the on-screen
instructions.
When the drive is successfully installed, it appears under My Computer or Computer
with a drive letter assigned to it.

Quick-start guide
5
Mac OS
If you install a brand-new drive that doesn’t contain any data, you must prepare the
drive for use.
Warning! When you complete the following steps, you create a partition that uses the
entire drive space.
1. Do one of the following:
• In Spotlight, enter Disk Utility.
• Open Finder. Navigate to Applications and click Utilities. Open Disk Utility.
2. Select the new drive and click the Partition tab.
3. Enter a name for the partition.
4. Click Apply.
The drive should now appear on your desktop and be accessible in Finder.
About the LED indicator
The S251BU31315 features a blue LED indicator. For more information about the LED
indicator, see the table below.
LED behavior Signicance
LED is illuminated The drive enclosure is receiving power
LED is illuminated and blinking The drive is being accessed

Instruction manual
6
Technical support
StarTech.com’s lifetime technical support is an integral part of our commitment to
provide industry-leading solutions. If you ever need help with your product, visit
www.startech.com/support and access our comprehensive selection of online tools,
documentation, and downloads.
For the latest drivers/software, please visit www.startech.com/downloads
Warranty information
This product is backed by a two-year warranty.
StarTech.com warrants its products against defects in materials and workmanship
for the periods noted, following the initial date of purchase. During this period,
the products may be returned for repair, or replacement with equivalent
products at our discretion. The warranty covers parts and labor costs only.
StarTech.com does not warrant its products from defects or damages arising from
misuse, abuse, alteration, or normal wear and tear.
Limitation of Liability
In no event shall the liability of StarTech.com Ltd. and StarTech.com USA LLP (or their
ocers, directors, employees or agents) for any damages (whether direct or indirect,
special, punitive, incidental, consequential, or otherwise), loss of prots, loss of business,
or any pecuniary loss, arising out of or related to the use of the product exceed the
actual price paid for the product. Some states do not allow the exclusion or limitation
of incidental or consequential damages. If such laws apply, the limitations or exclusions
contained in this statement may not apply to you.

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