Discontinued

Dual-Bay Drive Enclosure for 2.5in SATA Drives - Thunderbolt

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

Product ID: S252SMTB3

5 stars (1 reviews) |
  • Supports Thunderbolt data rates of up to 10Gbps
  • Includes 1m Thunderbolt cable
  • Built-in Thunderbolt daisy chain port

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 StarTech.com 2-year warranty and free lifetime technical support.

Applications

  • Add high-speed external storage, for graphics-intensive applications such as high-resolution video or photo editing
  • Quickly transfer large data files from your computer to an external hard drive for secure backups
  • Build a software RAID array, to achieve greater individual drive capacity, or secure data redundancy

The StarTech.com Advantage

  • Seamless performance from external drives, through a 10Gbps Thunderbolt host connection
  • Excellent drive protection and heat dissipation with durable aluminum housing and built-in fan
  • Connect right out of the box, with high quality 1m Thunderbolt cable included

Partner Numbers

  • UPC 065030854313

Compatibility

  • OS Independent logo
OS independent; No software or drivers required

Specifications

Warranty Information Warranty 2 Years
Connector(s) Drive Connectors 2 - SATA Data & Power Combo (7+15 pin)
Host Connectors 2 - Thunderbolt™ (20-pin)
Environmental Operating Temperature 5°C to 35°C (41°F to 95°F)
Storage Temperature -20°C to 70°C (-4°F to 158°F)
Humidity 5% ~ 95% RH
Hardware Interface Thunderbolt
Bus Type Thunderbolt
Number of Drives 2
Drive Size 2.5in
Compatible Drive Types SATA
Drive Installation Fixed
Number of 2.5 inch bays 2
Supported Drive Height(s) 15mm
Fan(s) Yes
Fans 1 - 50 mm
Fan Bearing Type Ball Bearing
Chipset ID Intel - DSL3510L
Indicators LED Indicators 1 - Status (Power)
1 - Drive 1 Activity
1 - Drive 2 Activity
Packaging Information Package Height 85 mm [3.3 in]
Package Length 23 cm [9.1 in]
Package Width 18 cm [7.1 in]
Shipping (Package) Weight 1.3 kg [3.0 lb]
Performance Maximum Data Transfer Rate 10 Gbps
Type and Rate Thunderbolt - 10 Gbit/s
UASP Support No
Type and Rate SATA III (6 Gbps)
Hardware Raid Supported No
Max Drive Capacity Currently tested with up to 2TB 5400 RPM hard drives
Hot Swap Capability No
Temperature Alarm No
Physical Characteristics Color Silver
Material Aluminum
Max Drive Height 15
Product Length 13.3 cm [5.2 in]
Product Width 93 mm [3.7 in]
Product Height 6.3 cm [2.5 in]
Weight of Product 490 g [17.3 oz]
Power Power Source AC Adapter Included
Input Voltage 100 - 240 AC
Output Voltage 12V DC
Software OS Compatibility OS independent; No software or drivers required
What's in the Box Included in Package 1 - Thunderbolt 2.5” HDD Enclosure
1 - Thunderbolt Cable
1 - HDD installation screw kit
1 - Universal Power Adapter w/ regional power cables (NA/EU/UK/AUS)
1 - Rubber foot set
1 - Instruction Manual

Accessories

TBOLTMM1M

1m Thunderbolt Cable - M/M

Connect your Thunderbolt™ devices

Your price
€47.99 EUR excl. VAT
€59.03 EUR incl. VAT

In stock: 20

Where to buy StarTech.com products
TBOLTMM3M

3m Thunderbolt Cable - M/M

Connect your Thunderbolt™ devices over longer distances

Your price
€81.99 EUR excl. VAT
€100.85 EUR incl. VAT

Check reseller availability

Where to buy StarTech.com products
MDISPLPORT6

6 ft Mini DisplayPort 1.2 Cable M/M - Mini DisplayPort 4k

Create a high-resolution 4k x 2k connection with HBR2 support between your Mini DisplayPort™-equipped laptop and monitor

Your price
€15.99 EUR excl. VAT
€19.67 EUR incl. VAT

In stock: 10

MDPMM3MW

3m (10 ft) White Mini DisplayPort Cable - M/M

Connect a Mini DisplayPort®-equipped laptop to a Mini DisplayPort monitor

Your price
€19.99 EUR excl. VAT
€24.59 EUR incl. VAT

Check reseller availability

Where to buy StarTech.com products
MDPMM2MW

2m (6 ft) White Mini DisplayPort 1.2 Cable M/M - Mini DisplayPort 4k

Create a high-resolution 4k x 2k connection with HBR2 support between your Mini DisplayPort™-equipped laptop and monitor

Your price
€17.99 EUR excl. VAT
€22.13 EUR incl. VAT

In stock: 811

Where to buy StarTech.com products
TBOLTMM2M

2m Thunderbolt Cable - M/M

Connect your Thunderbolt™ devices

Your price
€59.99 EUR excl. VAT
€73.79 EUR incl. VAT

In stock: 285

Where to buy StarTech.com products
TBOLTMM50CM

0.5m Thunderbolt Cable - M/M

Connect your Thunderbolt™ devices with reduced clutter

Your price
€41.99 EUR excl. VAT
€51.65 EUR incl. VAT

In stock: 3

Where to buy StarTech.com products
MDISPLPORT3

3 ft Mini DisplayPort 1.2 Cable M/M - Mini DisplayPort 4k

Create a high-resolution 4k x 2k connection with HBR2 support between your Mini DisplayPort™-equipped laptop and monitor

Your price
€14.99 EUR excl.
€14.99 EUR incl.

Check reseller availability

MDPMM1MW

1m (3 ft) White Mini DisplayPort 1.2 Cable M/M - Mini DisplayPort 4k

Create a high-resolution 4k x 2k connection with HBR2 support between your Mini DisplayPort™-equipped laptop and monitor

Your price
€15.99 EUR excl. VAT
€19.67 EUR incl. VAT

In stock: 127

Where to buy StarTech.com products
S2510BMU33

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

Your price
€28.99 EUR excl. VAT
€35.66 EUR incl. VAT

In stock: 335

Where to buy StarTech.com products
S2510BPU33

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

Your price
€27.99 EUR excl. VAT
€34.43 EUR incl. VAT

In stock: 736

Where to buy StarTech.com products
SVA12M5NA

DC Power Adapter - 12V, 5A

Replace your lost or failed power adapter

Your price
€62.99 EUR excl. VAT
€77.48 EUR incl. VAT

In stock: 3

Where to buy StarTech.com products
SAT2510BU32

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

Your price
€30.99 EUR excl. VAT
€38.12 EUR incl. VAT

In stock: 228

Where to buy StarTech.com products

Drivers/Downloads

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Manual(s):

Datasheet

Product Support

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Frequently Asked Questions

Troubleshooting

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.

Before You Buy

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.

How To

To confirm that the Mac OS detects your USB device, complete the following:

  1. Click the Apple icon.
  2. Click About This Mac.
  3. Click More Info or System Report.
  4. Under the appropriate heading, confirm that your USB device is listed and that there isn't an error. For example, a network card would be under Ethernet Cards.

You may need to refresh the System Information page after you plug in your device.  To do so, press Command R with the System Information page open.

Your USB device is listed according to the name of the chipset. To determine the name of the chipset of your USB device, navigate to www.StarTech.com and look on the Technical Specifications tab for your product.

Compliance and safety

Compliance letters

Safety Measures

  • If product has an exposed circuit board, do not touch the product under power.
  • If Class 1 Laser Product. Laser radiation is present when the system is open.
  • Wiring terminations should not be made with the product and/or electric lines under power.
  • Product installation and/or mounting should be completed by a certified professional as per the local safety and building code guidelines.
  • Cables (including power and charging cables) should be placed and routed to avoid creating electric, tripping or safety hazards.
*Product appearance and specifications are subject to change without notice.

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(5 Stars)

Digital life in a box!

By: hughster - 05/06/2017
I use this with Macintoshes - I have one large SSD containing OS and applications and home folders, and one large 72k spinner containing other data (photos, etc). I move this box, rather than a laptop, around from place to place, and though this occasionally results in licensing and activation issues, I feel happier with this as a solution than with a laptop.
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