STARTECH 

UNI251BMU33 StarTech.com USB 3.0 Universal 2.5in SATA III or IDE Hard Drive Enclosure with UASP - Portable External SSD / HDD

Mfg Part Number:  UNI251BMU33  
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Price: $43.99
Quantity:
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Last Updated: Nov 06, 2025
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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.

More from the Manufacturer

More from the Manufacturer

Main Specification
General Information
Manufacturer StarTech.com
Manufacturer Part Number UNI251BMU33
Manufacturer Website Address http://www.startech.com
Brand Name StarTech.com
Product Name USB 3.0 SATA/IDE 2.5" Hard Drive Enclosure
Packaged Quantity 1
Product Type Drive Enclosure
Technical Information
Number of Hard Drives Supported 1
Number of Solid State Drive Supported 1
I/O Expansions
Number of Total Expansion Bays 1
Number of 2.5" Bays 1
Network & Communication
Wireless LAN No
UASP Support Yes
Interfaces/Ports
Drive Interface SATA/600
Host Interface USB 3.0 Micro-B
Physical Characteristics
Product Color Black
Product Material Aluminum
Form Factor External
Height 0.7"
Width 3.1"
Depth 4.9"
Weight (Approximate) 4.60 oz
Miscellaneous
Package Contents
  • USB 3.0 SATA/IDE 2.5" Hard Drive Enclosure
  • 1 x USB 3.0 Type-A to Micro-B Cable
  • 4 x Installation Screws
  • 1 x Screw Driver
  • 1 x Instruction Manual
Certifications & Standards
  • FCC
  • CE
Country of Origin Taiwan
Environmentally Friendly Yes
Environmental Compliance Restriction of Hazardous Substances (RoHS)
Environmental Compliance Waste Electrical and Electronic Equipment Directive (WEEE)
Environmental Compliance Registration, Evaluation, Authorization and Restriction of Chemicals (REACH)
Warranty
Limited Warranty 2 Year

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