Thunderbolt to Gigabit Ethernet plus USB 3.0 - Thunderbolt Adapter

Add a Gigabit Ethernet port and a USB 3.0 hub port to your Thunderbolt™-equipped MacBook® or Ultrabook™

Product ID: TB2USB3GE

  • 1 x Gigabit Ethernet & 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)
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  • Plug-and-play installation on supported operating systems using native drivers
  • Ethernet port supports 10/100/1000Mbps connections, Full-Duplex operation, Jumbo Frames (up to 9.6K)
  • USB 3.0 port supports UASP and is backward compatible with USB 2.0
  • Silver sandblast finish with rubberized grips, matching Apple® MacBooks
  • Bus-powered - no external power required
$171.99 CAD
126+ In stock
In stock
CA: 14 | US: 112
In stock
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The TB2USB3GE Thunderbolt™ to Gigabit Ethernet + USB 3.0 Adapter lets you expand your MacBook or laptop connectivity through a single, compact adapter with both Gigabit Ethernet and USB 3.0, delivering reliable performance, connection possibilities and rugged portability.

Fast, Reliable Performance

Experience fast, effective and reliable performance from your essential peripherals! Leveraging the 10Gbps bandwidth of your Thunderbolt port for this dual-purpose adapter gives you reliable 1Gbps Ethernet and 5Gbps USB 3.0 connectivity, while enabling you to use both to their full capacity.

To maximize efficiency, the Thunderbolt adapter separates traffic from each interface into its own dedicated 5Gbps PCI Express lane, effectively avoiding bottlenecks when both ports are in use. This practical adapter gives you fast, robust external connectivity, offered by revolutionary Thunderbolt technology.

Thunderbolt performance with dedicated PCI Express lanes

Connection Possibilities

Take full advantage of your current peripherals! Saving you the added expense of purchasing new devices, the adapter lets you simultaneously connect your existing devices through your Thunderbolt port. Combining Thunderbolt to Ethernet and Thunderbolt to USB 3.0 functionality into a single adapter gives you two essential interfaces that are unavailable or limited on most Thunderbolt-equipped systems, making it easy for business users and home users alike to stay connected.

Whether you’re in a boardroom with a weak WiFi signal, or in a hotel with only a wired network connection, this adapter has you covered. Plus, the USB 3.0 port (with UASP support) can be used to connect a storage device, USB hub, USB printer, or sync with your tablet or smartphone.

Thunderbolt to Gigabit Ethernet + USB 3.0 application diagram

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 lightweight casing merges portability with durability to offer quality protection that lets you take the adapter anywhere.

The sleek and stylish 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 Gigabit Ethernet + USB 3.0 design elements

Backed by a 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 to a wired, Gigabit Ethernet connection where wireless signals are limited or unavailable

Add an extra USB 3.0 port to connect your peripherals at home, in the office or while traveling

Technical Specifications

Warranty Information
Warranty 2 Years
Bus Type Thunderbolt
Chipset ID Intel - DSL2210
Broadcom - BCM57762
ASMedia - ASM1042A
Industry Standards IEEE 802.3i (10BASE-T), IEEE 802.3u (100BASE-T), IEEE 802.3ab (1GBASE-T), IEEE 802.1Q VLAN tagging, IEEE 802.3x full duplex flow control, IEEE 802.1P Layer 2 Priority Encoding, IEEE 802.3az (EEE – Energy Efficient Ethernet)
Interface RJ45 (Gigabit Ethernet)
USB 3.0
Auto MDIX Yes
Compatible Networks 10/100/1000 Mbps
Full Duplex Support Yes
Jumbo Frame Support 9.6K max.
Maximum Data Transfer Rate 10 Gbps (Thunderbolt)
5 Gbps (USB 3.0)
2 Gbps (Ethernet – Full Duplex)
Promiscuous Mode Yes
UASP Support Yes
Connector Type(s) 1 - Thunderbolt™ (20-pin) Male
1 - RJ-45 Female
1 - USB Type-A (9 pin) USB 3.0 Female
OS Compatibility Windows® 8, 8.1, 10
Mac OS® 10.8.4 to 10.13
LED Indicators 1 - Ethernet Link Speed
1 - Ethernet Activity
Operating Temperature -10°C to 55°C (14°F to 131°F)
Storage Temperature -20°C to 85°C (-4°F to 185°F)
Physical Characteristics
Cable Length 5.1 in [130 mm]
Color Silver
Enclosure Type Plastic
Product Height 0.8 in [20.5 mm]
Product Length 3.1 in [78 mm]
Product Weight 2.5 oz [71 g]
Product Width 1.9 in [48.5 mm]
Packaging Information
Shipping (Package) Weight 5.5 oz [157 g]
What's in the Box
Included in Package 1 - Thunderbolt Adapter
1 - Instruction Manual


View full OS compatibility
Windows® 8, 8.1, 10
Mac OS® 10.8.4 to 10.13


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Thunderbolt to Gigabit Ethernet plus USB 3.0 - Thunderbolt Adapter

Customer Reviews

4 (4 reviews)
4 out of 5 stars
Quality of Product
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1 - 4 of 4 Reviews

(5 stars) Perfect for Macs!

This is a great little adapter for a Macbook Pro user. It adds Gigabit Ethernet and a fast USB port to a Thunderbolt port, is small and portable and looks great. It’s the little things that make it better, my Daughter saw me using it and commented about the rubber strips along the side and short cord that doesn’t get in the way. We tried it on her Mac as well and it worked instantly, so I might have to keep my eye on it in case it gets borrowed :) I received this product in exchange for an unbiased review
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(5 stars) A great extension to my MacBook Pro

You love your Mac laptop because of how slim and powerful it is, but that comes at a price which means it doesn’t have an ethernet port. If wifi is spotty or unavailable, get your laptop connected to fast and reliable wired Gigabit Ethernet using the StarTech Thunderbolt to Gigabit Ethernet plus USB 3 adapter. It is a very solid, well-built, light and compact unit that just works. No extra power cables are needed with this plug-and-play unit. It also features dual colored LED lights to indicate activity and speed. Connection speed is fast, and the USB 3.0 port will keep your Smartphone or iPad charged, hook up an external hard drive or USB printer. The rubber grips on either side of the unit is a nice detail which means you won’t loose your grip while plugging in your devices or peripherals. The 2 year warranty means peace-of-mind and it’s no wonder why because it not only looks great, but it is built to last. I received this product in exchange for an unbiased review.
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(5 stars) Great Thunderbolt Adapter for your MAC

This is an excellent companion product for any mac user with a thunderbolt port. It frees up a USB port and adds an giga ethernet port. No drivers required for mac and is immediately recognized. It is small, light and no heat so it can fit anywhere and enhance your current usage of your mac. Due to the fact that it uses a thunderbolt port, it will add a USB if one does not already exist. What is especially nice is that I have used it with another StarTech provided product DK30ADD. When used in conjunction with this product, you not only free up a USB port on your mac but you gain an additional giga ethernet port while gaining all the benefits of the DK30ADD. No power adapter is required for this product but the DK30ADD will use it's own supplied power adapter (with international plugs). So if you don't mind "daisy chaining" device together for multiple needs, I would highly recommend both products but if you just need a giga ethernet port and want to add an additional USB port to your system, then this product is well worth the purchased. Anything great product from the folks at StarTech!!! “I received this product in exchange for an unbiased review.”
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(1 star) No Driver for W7

No way to make it work with w7 and no support from manufacturer
Comment Helpful? Yes - 1 No - 1 Report
Response from
Brian, Customer Support
Hi, We're very sorry for any confusion regarding this product. Unfortunately it is not supported In Windows 7. We'd be happy to help you return the product. Please reply here or reach out to us directly at or 1-800 265-1844. Please mention this review. Thank you,