Thunderbolt to eSATA plus USB 3.0 Adapter - Thunderbolt Adapter

Add an eSATA port and a USB 3.0 hub port to your Thunderbolt™-equipped MacBook® or laptop

Product ID: TB2USB3ES

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  • 1 x eSATA (5Gbps) and 1 x USB 3.0 port (5Gbps), through a Thunderbolt connection
  • Compact and durable case design with an integrated Thunderbolt cable, for maximum portability
  • Supports Thunderbolt data rates of up to 10Gbps, with 2 dedicated PCI Express lanes (one per port)

The TB2USB3ES Thunderbolt™ to eSATA + USB 3.0 Adapter lets you expand your MacBook or laptop connectivity by combining Thunderbolt to eSATA and Thunderbolt to USB 3.0 functionality into a single, compact adapter. You gain two vital interfaces that are unavailable or limited on most Thunderbolt-equipped systems, delivering fast, reliable performance, more connection possibilities, and rugged portability.

Fast, Reliable Performance

Experience fast, effective and reliable performance from your essential peripherals! Now, you can leverage the 10 Gbps bandwidth of your Thunderbolt port to create a scalable, high-speed solution that offers eSATA and USB 3.0 connectivity.

To maximize efficiency, two dedicated lanes connect the Thunderbolt adapter directly to your system PCIe bus. Each lane delivers 5 Gbps bandwidth so you effectively avoid performance bottlenecks when both ports are in use. This versatile adapter gives you fast, simple and reliable external connectivity, offered by revolutionary Thunderbolt technology.

Thunderbolt Performance With 2 Dedicated PCI Express Lanes

Connection Possibilities

Take full advantage of your current peripherals! Saving you the added expense of purchasing new devices, this single adapter lets you simultaneously connect your existing peripherals through your Thunderbolt port - perfect for eSATA external hard drives (with SATA III support), as well as USB 3.0 hubs (with UASP support), or for syncing with your tablet or smartphone.

You can even integrate the adapter into the end of a Thunderbolt daisy-chain configuration! Connect the adapter to your Thunderbolt Docking Station (SKU: TBDOCKHDPBC - sold separately), for further MacBook expandability!

Connects directly to a MacBook or Laptop or integrates into the end of a Thunderbolt Daisy-Chain

Rugged Portability

Get work done on the go, and look great doing it! A rugged and travel-friendly design lets you tuck the adapter neatly into your laptop bag, plus the casing combines portability with durability to offer quality protection that lets you take the adapter anywhere.

This sleek and stylish Thunderbolt adapter aesthetically matches your MacBook Pro® or MacBook Air®, with a silver sandblast finish and black rubberized grips. Plus, the compact adapter requires no external power, and integrates a built-in Thunderbolt cable as well as hassle-free plug-and-play installation.

Thunderbolt to eSATA + USB 3.0 Rugged Portability

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

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  • Add 2 essential connectivity ports to your Thunderbolt-equipped MacBook Pro, MacBook Air, laptop or Ultrabook™
  • Connect an eSATA-equipped external hard drive, or external enclosure to your laptop via a Thunderbolt port
  • Add an extra USB 3.0 port to connect your peripherals at home, in the office or while traveling
  • Perfect for use with your MacBook or laptop in a shared workspace or hot desk environment

Partner Numbers

  • UPC 065030859387


  • Windows 8 logo
  • Windows 10 logo
  • Windows 11 logo
  • Mac OS X El Capitan (10.11) logo
  • macOS Sierra (10.12) logo
  • macOS High Sierra (10.13) logo
Windows® 8, 8.1, 10, 11
Mac OS® 10.8.4 to 10.13


Warranty Information Warranty 2 Years
Connector(s) 1 - Connector Type(s) Thunderbolt™ (20-pin)
eSATA (7 pin, Data)
USB Type-A (9 pin, 5 Gbps)
Environmental Operating Temperature -10°C to 55°C (14°F to 131°F)
Storage Temperature -20°C to 85°C (-4°F to 185°F)
Hardware Ports 2
Interface eSATA
USB 3.0
Bus Type Thunderbolt
Chipset ID Intel - DSL2210
ASMedia - ASM1061
ASMedia - ASM1042A
Packaging Information Shipping (Package) Weight 5.7 oz [161 g]
Package Length 6.9 in [17.5 cm]
Package Width 5.5 in [14 cm]
Package Height 1.3 in [32 mm]
Performance Maximum Data Transfer Rate 10 Gbps (Thunderbolt)
5 Gbps (eSATA)
5 Gbps (USB 3.0)
Type and Rate Thunderbolt - 10 Gbit/s
UASP Support Yes
Type and Rate SATA III (6 Gbps)
Port Multiplier Yes
LBA support 48-bit
Hardware Raid Supported No
Physical Characteristics Color Silver
Material Plastic
Cable Length 5.1 in [130 mm]
Product Length 3.1 in [78 mm]
Product Width 1.9 in [48.5 mm]
Product Height 0.8 in [2.0 cm]
Weight of Product 2.6 oz [73 g]
Software OS Compatibility Windows® 8, 8.1, 10, 11
Mac OS® 10.8.4 to 10.13
What's in the Box 1 - Included in Package Thunderbolt Adapter
Instruction Manual



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Frequently Asked Questions


When Windows asks, “Where do you want to install Windows?” choose “Load Driver.” Then connect a USB drive (or insert a CD) with the controller’s RAID driver and load the correct one for the OS you will be installing.

How To

In order to use a hard drive plugged into a hard drive controller card as your operating system, you need to install the operating system onto the hard drive while it is plugged into the expansion card. To do this, complete the following:

Note: Not all hard drive controller cards have drivers that allow you to install the operating system onto the hard drive. All of the hard drive controllers that display this FAQ include this capability.

Before you begin, consult the documentation that came with the motherboard to make sure that the motherboard or BIOS supports booting from an expansion card.

  1. Back up any data on the hard drive.
  2. Make a copy of the drivers from the website onto a floppy disc, CD, DVD, or USB flash drive. The drivers that you download depends on the operating system that you want to install.
  3. Install the hard drive controller card onto your motherboard.
  4. Plug the hard drive into the controller card.
  5. Turn on your computer and open the operating system install wizard.
  6. Before you select the hard drive that you want to install the operating system onto, select the option to install third-party drivers.
  7. Point the driver installer to the floppy disc, CD, DVD, or USB flash drive.
  8. Install the drivers.
  9. Select the hard drive on the hard drive controller card as the location where you want to install the operating system.
  10. Complete the on-screen instructions to finish installing the operating system.

Before You Buy

Although you can adapt a Serial Attached SCSI (SAS) drive to connect to a standard SATA controller card, the card must support SAS commands in order to communicate with SAS drives. SAS drives have a different command set that is not present on SATA controllers.

This SATA controller card only supports standard SATA drives.

This device does not support the ATA Packet Interface (ATAPI) protocol. ATAPI is required for optical drives, including CD-ROM drives, DVD-ROM drives, and Blu-ray players. Because this device does not support ATAPI, optical drives are also not supported over any IDE, SATA, or eSATA connections.

For a list of products that do support ATAPI, refer to the following FAQ: https://www.startech.com/faq/hard_drive_controllers_atapi_support.

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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