Skip to: | - A great place to buy computers, computer parts, electronics, software, accessories, and DVDs online. With great prices, fast shipping, and top-rated customer service - once you know, you Newegg.

If you are reading this message, Please click this link to reload this page.(Do not use your browser's "Refresh" button). Please email us if you're running the latest version of your browser and you still see this message. - Computer Parts, Laptops, Electronics, HDTVs, Digital Cameras and More!

Sign up today for a 30-day free trial of Newegg Premier
  • Wish List
  • Feedback
  • Help
Search all
Home > 
Computer Hardware > 
Hard Drives > 
Hard Drive Enclosures > 
Item#: N82E16817707351

StarTech S252SMTB3 Aluminum 2.5" Silver SATA III Thunderbolt™ Hard Drive Enclosure with Thunderbolt Cable - Dual Bay 2.5" HDD Enclosure with fan

  • Thunderbolt -10Gbps
  • Built-in fan for drive cooling
  • Aluminum housing for protection
  • 1m Thunderbolt cable included
  • Thunderbolt daisy chain port
  • Supports Dual SATA III (6 Gbps) SSD/HDD
This product qualifies for the Iron Egg guarantee. We'll match any qualifying competitor's price.
  • Email this page
ICON Loading...

Learn more about the STARTECH S252SMTB3




Internal Interface
HDD Count Supported
Dual HDD
Maximum Capacity (per Bay)
Currently tested with up to 2TB 5400 RPM hard drives
Drive Connectors: 2 - SATA Data & Power Combo (7+15 pin) Female

Host Connectors: 2 - Thunderbolt™ (20-pin) Female

Max Drive Capacity: Currently tested with up to 2TB 5400 RPM hard drives

Maximum Data Transfer Rate : 10 Gbps

UASP Support: No
The S252SMTB3 2-bay Thunderbolt enclosure enables you to connect two 2.5" SATA I/II/III hard drives (HDD) or solid state drives (SSD) to your Mac® or PC using an available Thunderbolt port.

Faster Transfer Speeds

Transfer data to and from your external drives faster than ever before, through a Thunderbolt connection. With data transfer speeds up to 10 Gbps, Thunderbolt performs 100% faster than USB 3.0 (5 Gbps), and 60% faster than eSATA (6Gbps). The unprecedented performance Thunderbolt offers makes this enclosure an ideal solution for high-resolution video editing and photography applications.

Connect Right out of the Box

To save you time and money, the S252SMTB3 includes a high-quality 1m Thunderbolt cable, ensuring you have everything you need for a hassle-free installation.

Excellent Drive Protection

To help ensure optimal operating temperatures for your hard drives and solid state drives, the Thunderbolt enclosure features a built-in fan and a durable, solid aluminum housing that maximizes heat dissipation.

Daisy Chain for Added Flexibility and Scalability

Get the most out of your Thunderbolt devices by leveraging the Thunderbolt daisy chain port. You can connect up to 6 additional devices such as monitors, docking stations, or additional external drives. This is an excellent docking storage solution for Ultrabooks or smaller more portable laptops that have fewer I/O ports.

The S25SMTB3 is backed by a 2-year warranty and free lifetime technical support.

Add two 2.5” SATA HDDs, up to 15mm in height, to your Mac or PC through Thunderbolt, with a well-ventilated storage solution that helps keep your drives running cool

ThunderBolt Hard Drive Enclosure

TB HDD Enclosure

ThunderBolt Cable Included


Operating Systems Supported
Windows® 8 / 8.1 (32/64bit), 7 (32/64), Vista(32/64), XP(32/64)
Windows Server® 2012, 2008 R2, 2003(32/64)
Mac OS® 10.x (Tested up to 10.9)

Dimensions & Weight

2.50" x 5.20" x 3.70" (H x L x W)

Quick Info


  • Limited Warranty period (parts): 1 year
  • Limited Warranty period (labor): 0 day

Customer Reviews of the STARTECH S252SMTB3

Do you own this product? Write a Review

ICON Loading...

Filter Results

  • John S.
  • 6/3/2014 12:57:32 PM
  • Tech Level: High
  • Ownership: less than 1 day

3 out of 5 eggsDisappointed

Pros: Works. Easy to install.

Cons: I just purchased this enclosure and connected it to a late 2013 MacPro. Mounted two SSDs in it and tested with BlackMagic. Kingston SV300S37A/120g (141.3.4 MB/s write) and an OWC EX6G120 (132.4 MB/s write). Read times (329.5/246.0) beat the pants off an external HDD (USB3), but write times weren't a whole lot faster.

No comparison to internal PCIe SSD which pinned both gauges at 797.8 write and 931.9 read.

I hooked the OWC drive up with a USB 3 connector and the test results were 124.0 write and 218.2 read. Slower than the 132.4/248.0 using the StarTech Thunderbolt enclosure, but the difference seems hardly worth the price. I'm really kicking myself for not spending the extra $300 for the 512GB PCIE drive.

Other Thoughts: Internal fan seems like overkill as unit and most SSDs generate very little heat. The noise isn't bad, but sitting next to a silent MacPro you can hear it.

Did you find this review helpful? Yes No

Compare Offers from All Sellers

Seller Name & Rating Offer Details  
ICON Loading...

Send It As A Gift!

gift services details

More Buying Options

Are you an E-Blast Insider? Subscribe Newegg e-Blast
Shop without retyping payment details. Secure shopping made faster.
Check out with PayPal.

Home > 
Computer Hardware > 
Hard Drives > 
Hard Drive Enclosures > 
Item#: N82E16817707351
Related Products
3.5" USB3.0 & eSATA Aluminum / Plastic ...
3.5" USB3.0 & eSATA Up to 3TB Aluminum ...
Model Brand StarTech Model SAT3540U3ER Spec Color Black ...
Shop by Region: United States | Canada | China
VeriSign Click for the BBB Business Review of this Computers - Supplies & Parts in Whittier CAThis site protected by Trustwave's Trusted Commerce program Inc500
Policy & Agreement | Privacy Policy  © 2000-2014 Newegg Inc.  All rights reserved.
If the Adobe Reader does not appear when you click on a link for a PDF file, you can download Adobe Reader from the Adobe web site.