StarTech SATA III IDE External SSD / HDD Enclosure - UNI251BMU33

Abt Model: UNI251BMU33 | UPC: 065030859226
Online Only
Your Shipping Zip Code: 20149
Estimated Delivery Date: Jan 24th*
Free Shipping Details
Need it installed? View installation options

Product Details

StarTech Universal 2.5" SATA III or IDE Hard Drive Enclosure With UASP-Portable External SSD / HDD, Model UNI251BMU33

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 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.

Testing results were obtained using an Intel® Ivy Bridge system, a UASP-enabled Enclosure, and a SATA III solid state drive.


  • 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
  • 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
  • Please note: Hard drive not included



  • Bus Type: USB 3.0
  • Chipset ID: JMicron - JMS330, JMB565
  • Compatible Drive Types (Type and Rate): SATA & IDE
  • Drive Installation: Fixed
  • Drive Size: 2.5in
  • Interface: USB 3.0
  • Number of 2.5 inch bays: 1
  • Number of Drives: 1


  • Max Drive Capacity: Currently tested with up to 2TB 7200 RPM hard drives
  • Maximum Data Transfer Rate: 5 Gbps
  • Type and Rate:
    • USB 3.0 - 5 Gbit/s
    • SATA III (6 Gbps)
  • UASP Support: Yes


  • 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


  • LED Indicators: 1 - Drive Power / Activity


  • Power Source: USB-Powered


  • 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)

In the Box:

  • 1 - USB 3.0 SATA/IDE 2.5" Hard Drive Enclosure (hard drive not included)
  • 1 - USB 3.0 Y cable
  • 4 - Installation screws
  • 1 - Screw driver
  • 1 - Instruction manual

Approximate Dimensions:

  • Height: 0.7"
  • Width: 3.1"
  • Length: 4.9"

Approximate Weight:

  • Shipping: 1 lb

Warranty Information:

  • Manufacturer Warranty (authorized online retailer): 2 Years Parts and Labor
California customers: Proposition 65 WARNING - learn more
Downloadable Resources
Get Adobe Reader
Key Features
Broad Drive Compatibility/ Support For 2.5in IDE And SATA HDD / SSD/ Optimal Performance With SATA III And UASP Support/ Compatible With SATA Revision I/II/III (1.5/3.0/6.0 Gbps) Drives, And PATA / IDE (66/100/133 Mbps) Drives/ USB Powered/ Plug-And-Play Installation/ Hard Drive Not Included/ Black Finish
More reasons to buy the StarTech UNI251BMU33 from Abt Electronics
  • is an authorized dealer (Learn More).
  • The StarTech UNI251BMU33 is Brand New.
  • The StarTech UNI251BMU33 Ships in a Factory Sealed Box.
  • Abt ships this product for free!
InterfaceUSB 3.0
Power Supply RequiredNo
sign up for our newsletter
Join Our Email List & Get $25 Off your next order of $250 or more.