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StarTech Thunderbolt 3 to eSATA Adapter + USB 3.1 Port - Mac / Windows
SKU# AC21667, Model# TB3ESATU31

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SKU # AC21667 | Model # TB3ESATU31

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Add an eSATA port and a USB 3.1 Gen 2 hub port to your Thunderbolt 3 enabled laptop or tablet or other device - Thunderbolt 3 to eSATA Adapter + USB 3.1 (10Gbps) hub - For Mac and Windows - Provides 1 x eSATA (6Gbps) and 1 x USB 3.1 port (10Gbps) through a single Thunderbolt 3 port - Supports Thunderbolt data rates of up to 20Gbps with 2 dedicated PCI Express lanes (one per port) - USB-C to USB Adapter/ Thunderbolt 3 Hub / Thunderbolt 3 Adapter / Thunderbolt 3 to USB / USB C to A adapter

Manufacturer Warranty: 2 Years Limited Warranty
Manufacturer Contact Info:,

This Thunderbolt™ 3 to eSATA and USB 3.1 adapter lets you expand the connectivity of your Mac or PC laptop, by adding two essential ports. Simply connect it to the Thunderbolt 3 port on your laptop to provide an eSATA port and a USB 3.1 (10Gbps) port. Compact and portable, it’s the perfect companion for your MacBook Pro or any other Thunderbolt 3 equipped laptop.

Connect to your existing eSATA devices

Extend the life of your external storage devices. Using the adapter's eSATA port, simply connect an eSATA-equipped external hard drive, solid-state drive or external enclosure.

Connect to USB 3.1 (10Gbps) devices

The adapter lets you add any USB 3.1 or USB 3.0 device, such as an external hard drive, SSD or flash drive. It’s also backward compatible with USB 2.0 devices.

Fast, reliable performance

Leverage your Thunderbolt 3 port to create a high-speed solution that offers both eSATA and USB 3.1 connectivity. To maximize performance efficiency, two dedicated lanes connect the Thunderbolt adapter directly to your system PCIe bus. Both ports on the adapter deliver full bandwidth, so you avoid performance bottlenecks when the two ports are in use.

Rugged portability

Its compact and durable housing makes the adapter ideal for portable use. It requires no external power, and features an integrated Thunderbolt cable. Setting the adapter up is easy, with plug-and-play installation.

The TB3ESATU31 is backed by a 2-year warranty and free lifetime technical support.

Connector Type(s)eSATA (7 pin, Data) Female
Thunderbolt™ 3 USB-C (24-pin) (40Gbps) Male
USB 3.1 USB Type-A (9 pin, Gen 2, 10 Gbps) Female
Operating Temperature0°C to 40°C (32°F to 104°F)
Storage Temperature-20°C to 85°C (-4°F to 185°F)
Bus TypeThunderbolt 3
Chipset IDIntel - Alpine Ridge (Thunderbolt)
ASMedia - ASM1061 (eSATA)
USB 3.1 Gen 2
Port StyleDongle (Included)
Packaging Information
Package Height30 mm [1.2 in]
Package Length17 cm [6.7 in]
Package Width14.2 cm [5.6 in]
Shipping (Package) Weight150 g [5.3 oz]
LBA support48-bit
Maximum Data Transfer Rate20 Gbps (Thunderbolt)
6 Gbps (eSATA)
10 Gbps (USB 3.1 Gen 2)
Number of Drives Supported Through Port Multiplier1 to 4
Port MultiplierYes
Type and RateSATA III (6 Gbps)
Thunderbolt 3 - 20 Gbit/s
UASP SupportYes
Physical Characteristics
Cable Length160 mm [6.3 in]
ColorBlack & Silver
Enclosure TypePlastic
Product Height2.1 cm [0.8 in]
Product Length24 cm [9.4 in]
Product Width52 mm [2 in]
Weight of Product50 g [1.8 oz]
OS CompatibilityWindows® 7, 8, 8.1, 10
Mac OS® 10.12, 10.14
Special Notes / Requirements
System and Cable RequirementsRequires a laptop with a Thunderbolt 3 port with 15W of power.
What's in the Box
Included in Packageinstruction manual
Thunderbolt 3 adapter

SKU # AC21667 | Model # TB3ESATU31

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