Are you in the United States?
Visit our U.S.A. & International site for relevant pricing, distribution and product availability information.
Go to StarTech.comUSB 3.0 Universal 2.5in SATA III or IDE Hard Drive Enclosure with UASP - Portable External SSD / HDD
Turn a 2.5” SATA III or IDE HDD / SSD into an external hard drive that connects to your computer through USB 3.0 with UASP
Product ID: UNI251BMU33
- Broad drive compatibility with support for 2.5in IDE and SATA HDD / SSD
- Optimal performance with SATA III & UASP support
- Maximum portability with a small footprint and no external power adapter required
- Supports both IDE & SATA 2.5in form factor drives
- Compatible with SATA revision I/II/III (1.5/3.0/6.0 Gbps) drives
- Compatible with PATA / IDE (66/100/133 Mbps) drives
- USB powered
- Compatible with USB 3.0/2.0/1.1 (5 Gbps / 480 Mbps / 1.5 Mbps)
- Plug-and-play installation
Volume Order? Request a quote
Reseller Pricing: Create an Account
Overview
The UNI251BMU33 Universal 2.5in Drive Enclosure lets you turn a 2.5in SATA or IDE hard drive (HDD) or solid-state drive (SSD) into a portable USB 3.0 storage solution.
This versatile enclosure offers a simple solution for re-purposing 2.5in HDDs and SSDs that are no longer in use into convenient external storage. Since the enclosure supports either legacy IDE or SATA drives, you can rest assured that you’ll have the correct option on-hand when it’s time to swap another drive in, without having to worry about compatibility.
To get the most from your SATA III drives and ensure maximum performance and speed, the UNI251BMU33 is enhanced with UASP support. When paired with a UASP-enabled host controller, the enclosure delivers transfer speeds up to 70% faster than conventional USB 3.0. See our UASP testing results below for further details.
Perfect for carrying your external drive along with your laptop, the UNI251BMU33 is USB-powered, so you won’t need to carry around an external power adapter. Plus, the enclosure features a small-footprint design, making it a great solution for on-the-go laptop and desktop users who want to add storage to their computer without taking up much space.
The UNI251BMU33 is backed by a StarTech.com 2-year warranty, and free lifetime technical support.
Improved Performance with UASP
UASP is supported in Windows 8, Mac OSX (10.8 or above), and Linux. In testing, UASP performs with a 70% faster read speed and 40% faster write speed over traditional USB 3.0 at peak performance.
At the same peak in testing UASP also shows an 80% reduction in required processor resources.
Testing results were obtained using an Intel® Ivy Bridge system, a UASP-enabled StarTech.com Enclosure, and a SATA III solid state drive.
The StarTech.com Advantage
- Broad drive compatibility with support for 2.5in form factor IDE and SATA hard drives (HDD) and solid-state drives (SSD)
- Time-saving file transfer speeds up to 70% faster than traditional USB 3.0 when used with a UASP-supported host device
- Maximum portability with a small footprint and USB power
Applications
Turn an unused IDE (PATA) or SATA hard drive into additional external storage
Access a variety of different drives
Re-purpose an unused SATA or IDE drive as an external hard drive
Externally expand the storage capacity of your portable laptop or Ultrabook™ computer
Technical Specifications
Product Numbers | ||
---|---|---|
Extertis IE | STCUNI251BMU33 | |
Ingram IE | V933350 | |
UPC Code | 065030859226 |
Warranty Information | ||
---|---|---|
Warranty | 2 Years | |
Hardware | ||
Bus Type | USB 3.0 | |
Chipset ID | JMicron - JMS330 JMicron - JMB565 |
|
Compatible Drive Types | SATA & IDE | |
Drive Installation | Fixed | |
Drive Size | 2.5in | |
Interface | USB 3.0 | |
Number of 2.5 inch bays | 1 | |
Number of Drives | 1 | |
Performance | ||
Hot Swap Capability | No | |
Max Drive Capacity | Currently tested with up to 2TB 7200 RPM hard drives | |
Maximum Data Transfer Rate | 5 Gbps | |
Port Multiplier | No | |
RAID | No | |
Type and Rate | USB 3.0 - 5 Gbit/s | |
SATA III (6 Gbps) | ||
UASP Support | Yes | |
Connector(s) | ||
Drive Connectors | 1 - SATA Data & Power Combo (7+15 pin) Receptacle | |
1 - IDE (44 Pin, EIDE/PATA, 2.5" HDD) Female | ||
Host Connectors | 1 - USB 3.0 Micro-B (10 pin, SuperSpeed) Female | |
Software | ||
OS Compatibility | OS independent; No software or drivers required | |
Indicators | ||
LED Indicators | 1 - Drive Power / Activity | |
Power | ||
Power Source | USB-Powered | |
Environmental | ||
Humidity | 0% ~ 90% RH | |
Operating Temperature | 0°C to 60°C (32°F to 140°F) | |
Storage Temperature | -20°C to 70°C (-4°F to 158°F) | |
Physical Characteristics | ||
Color | Black | |
Enclosure Type | Aluminum | |
Max Drive Height | 9.5 mm [0.4 in] | |
Product Height | 17 mm [0.7 in] | |
Product Length | 125 mm [4.9 in] | |
Product Weight | 128 g [4.5 oz] | |
Product Width | 80 mm [3.1 in] | |
Packaging Information | ||
Shipping (Package) Weight | 232 g [8.2 oz] | |
What's in the Box | ||
Included in Package | 1 - USB 3.0 SATA/IDE 2.5” Hard Drive Enclosure | |
1 - USB 3.0 Type-A to Micro-B cable | ||
4 - Installation screws | ||
1 - Screw driver | ||
1 - Instruction manual |
Related Products
2.5in USB 3.0 External SATA III SSD Hard Drive Enclosure with UASP – Portable External HDD
Turn a 2.5” SATA Hard Drive or Solid State Drive into a UASP supported USB 3.0 External Hard Drive
534+ In stock
2.5in Aluminum USB 3.0 External SATA III SSD Hard Drive Enclosure with UASP for SATA 6 Gbps – Portable External HDD
Turn a 2.5” SATA Hard Drive or Solid State Drive into a UASP supported USB 3.0 External Hard Drive
230+ In stock
2.5in USB 3.0 SSD SATA Hard Drive Enclosure
Turn a 2.5" SATA HDD/SSD into an external SuperSpeed USB 3.0 Hard Drive/Solid State Drive
182+ In stock
eSATAp / eSATA or USB 3.0 External 2.5in SATA III 6 Gbps Hard Drive Enclosure with UASP – Portable HDD / SDD
Turn a 2.5” SATA III HDD / SSD into an external hard drive that can connect to your computer through either eSATAp at 6 Gbps, or USB 3.0 with UASP at 5 Gbps
870+ In stock
2.5” USB 3.0 Aluminum SATA III Hard Drive Enclosure w/ UASP and Built-in Cable
Turn a 2.5in SATA HDD/SSD into a complete external storage solution over USB 3.0 with UASP
IDE to SATA Hard Drive or Optical Drive Adapter - 40-Pin PATA to 2.5" SATA HDD/SSD/ODD Converter
Connect your SATA Hard Drive or Blu-ray/DVD/CD-ROM Drive to an IDE motherboard
29+ In stock
2.5in and 3.5in 40 Pin Male IDE to SATA Adapter Converter
Connect your SATA drive to an IDE motherboard
28+ In stock
SATA to 2.5in or 3.5in IDE Hard Drive Adapter for HDD Docks
Use your 2.5in or 3.5in IDE hard drives in a SATA HDD Docking Station
373+ In stock
USB 3.0 to SATA or IDE Hard Drive Adapter / Converter
Connect a 2.5in / 3.5in SATA or IDE Hard Drive through a USB 3.0 Port
15+ In stock
USB 2.0 to SATA/IDE Combo Adapter for 2.5/3.5" SSD/HDD
Quickly and easily connect SATA and/or IDE hard drives through USB 2.0
21+ In stock
Bi-Directional SATA IDE Adapter Converter
Bi-directional adapter converts IDE to SATA or SATA to IDE
39+ In stock
Drive Enclosure for 2.5in SATA SSDs / HDDs - USB 3.0 - 7mm
Turn a 7mm high 2.5in SATA III SSD/HDD into a UASP-supported USB 3.0 External Drive
342+ In stock
Accessories
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
310+ In stock
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
524+ In stock
Slim Micro USB 3.0 Cable - M/M - 1m (3ft)
Position your USB 3.0 Micro devices near your desktop or laptop computer easily, with a thin, more flexible cable
20+ In stock
Slim Micro USB 3.0 Cable - M/M - 2m (6ft)
Position your USB 3.0 Micro devices near your desktop or laptop computer easily, with a thin, more flexible cable
Slim Micro USB 3.0 Cable - M/M - 0.5m (20in)
Minimize clutter and position your USB 3.0 Micro devices near your desktop or laptop computer easily, with a thin, flexible cable
384+ In stock
1 ft SuperSpeed USB 3.0 Cable A to Micro B
Connect a USB 3.0 Micro USB External Hard drive to your computer
202+ In stock
3 ft SuperSpeed USB 3.0 Cable A to Micro B
Connect a USB 3.0 Micro USB External Hard drive to your PC or laptop
137+ In stock
3 ft 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
217+ In stock
2 Port Flush Mount ExpressCard 54mm SuperSpeed USB 3.0 Card Adapter with UASP Support
Add two flushmount USB 3.0 ports to your ExpressCard-enabled laptop
94+ In stock
2 port PCI Express SuperSpeed USB 3.0 Card with UASP Support - 1 Internal 1 External
Add one internal and one external SuperSpeed USB 3.0 to your PC
28+ In stock
2 Port PCI Express (PCIe) SuperSpeed USB 3.0 Card Adapter with UASP - LP4 Power
Add 2 SuperSpeed USB 3.0 ports to your PCI Express-enabled PC
4 Port PCI Express PCIe SuperSpeed USB 3.0 Controller Card Adapter with UASP - SATA Power
Add 4 external USB 3.0 ports to a low profile or standard computer, through PCI Express
238+ In stock
4 Port PCI SuperSpeed USB 3.0 Adapter Card with SATA / SP4 Power
Add 4 SuperSpeed USB 3.0 ports to a computer through a PCI slot
234+ In stock
2 Port PCI SuperSpeed USB 3.0 Adapter Card with SATA Power
Add 2 SuperSpeed USB 3.0 ports to a computer through a PCI slot
57+ In stock
4 Port PCI Express (PCIe) SuperSpeed USB 3.0 Card Adapter w/ 4 Dedicated 5Gbps Channels - UASP - SATA / LP4 Power
Add four USB 3.0 ports with four independent channels, LP/SATA power, and charging support to your PC through a PCI Express slot
411+ In stock
4 Port PCI Express (PCIe) SuperSpeed USB 3.0 Card Adapter w/ 2 Dedicated 5Gbps Channels - UASP - SATA / LP4 Power
Add four USB 3.0 ports with two independent channels, LP/SATA power, and charging support to your PC through a PCI Express slot
54+ In stock
Product Support
Drivers & Downloads
Manual(s):
-
UNI251BMU33.pdf
English
Compliance Letter(s):
Data Sheet(s)
- UNI251BMU33_Datasheet.pdf
English
Frequently Asked Questions
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.
Copy Link
Was this information helpful? Yes No
Note: For more information on how to detect an IDE hard drive, visit http://www.startech.com/faq/hard_drive_accessories_ide_detection.
Older IDE drives are not supported by current StarTech.com products. Typically, these drives were made earlier than the mid-to-late 1990s and are smaller than 1 Gigabyte in size.
There are a number of reasons that older IDE drives may not be detected, including the following:
-
The drive uses PIO (Programmed Input/Output) mode and not DMA (Direct Memory Access).
-
The drive is non-ATA or is using an ATA mode that predates the chipset's compatibility (usually older than ATA-4).
-
The sector size is not 512 bytes.
Unfortunately there is no workaround in these situations. An older system or an older IDE controller card must be used to access older IDE drives.
Copy Link
Was this information helpful? Yes No
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.
Copy Link
Was this information helpful? Yes No
Troubleshooting
Note: If you are using an IDE hard drive 1 Gigabyte in size or smaller, refer to the following FAQ: http://www.startech.com/faq/hard_drive_accessories_minimum_ide_hard_drive_size
If you are unable to detect your IDE (PATA) drive using a StarTech.com product, you may need to change the jumper settings on your drive. The jumpers switch the drive between Master, Slave, and Cable Select for most drives. A jumper is a small plastic piece that slides on top of two pins to electrically short them together.
When it does not mention what IDE drive configuration is required or if there is only one drive in the setup, the drive should be configured as Master. If Master is not working, try using the drive in Cable Select.
There is no standard position for the jumpers on IDE drives. On some drives, the jumper diagram is on the label that is on the top of the drive. On other drives, there are markings on the circuit board for CS, MA, and SL, which means a jumper shorts the pins vertically in that position. For more information, refer to the documentation provided by the manufacturer.
Copy Link
Was this information helpful? Yes No
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.
Copy Link
Was this information helpful? Yes No
* Product appearance and specifications are subject to change without notice.
Follow us on Twitter | Find us on Google+