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Not Just a Thunderbolt 3 Cable
Thunderbolt 3 brings data transfers at speeds up to 40Gbps over USB-C, enabling a superset of standard USB-C to truly become one compact port that does it all—delivering the fastest, most versatile connection to any dock, display, or data device.
For the first time, one port can connect numerous Thunderbolt devices, any display, and billions of USB devices (additional adapters may be required). Thunderbolt 3 cables are primarily used for connecting docking stations, high performance data storage solutions, peer-to-peer networking, and more.
Note: This USB C Thunderbolt cable cable is incompatible with Qualcomm Quick Charge and other (non USB-IF Power Delivery) “Fast Charge” technologies.
The Plugable TBT3-40G80CM cable is foremost designed as a Thunderbolt 3 cable, but it is also a universal USB-C cable for use with USB-C computers, phones, tablets, docking stations, accessories, and more. It supports all USB-C cable features, including USB 3.0 and USB 2.0 data lines, wire gauge supporting up to 5A charging via the USB-IF PD (Power Delivery) standard 100W max (5V-20V), and support for reporting its capabilities as an electronically marked cable.
A Cable That Does It All
- 2.6ft / 80cm long
- 40Gbps Thunderbolt 3
- Dual 4K 60Hz video output or single 5K outputs
- Thunderbolt 3 peer-to-peer 10Gbps networking
- Supports up to 5Gbps transfer over USB-C 3.0 hosts and devices
- Wire gauge and electronic marking support up to 5A charging (5V-20V, 100W max)
- Cable supports previous USB generations such as USB 1.1, USB 2.0, and USB 3.0
Massive 40Gbps Bandwidth
Because the cable is designed for Thunderbolt 3, it is also capable of supporting data transfer speeds four times as fast as standard USB-C cables. The available 40Gbps bandwidth allows for dual 4K 60Hz video outputs (or a single 5K output) and up to 100W (20V, 5A) capabilities when used with compatible systems and Thunderbolt 3 accessories. Please note for USB-C usage this cable is limited to USB-C 3.0 (5Gbps).
Specifications
e-Marker:
The cable is electronically marked with an IC (sometimes referred to as an “e-marker”) to assist in negotiation of charging rates and USB-C alternate modes like DisplayPort video.
Length: 2.6ft / 80cm long
Model: TBT3-40G80CM
Jason
Reviewed in the United States on March 10, 2025
Works great, good quality. Charges laptop through Thunderbolt 3 dock. Non-ostentatious brand label.
Turbo
Reviewed in the United States on January 6, 2025
Used for laptop to audio interface. Just right.
sl
Reviewed in the United States on October 21, 2024
It worked as expected. I do not have any issues to setup and use.
Mark M
Reviewed in the United States on October 10, 2024
I used it to set-up a new M4 iMac from a 2017 iMac running Ventura. It worked fine and relatively quickly.
M. Stephens
Reviewed in the United Kingdom on May 20, 2021
Seems a good quality cable. Works with my USB-C monitor (Philips 243B9) to provide power, video and usb hubbed devices from a MacBook Pro. Worth knowing as in order to do this you need a thunderbolt 3 cable such as this and not just a usb-c cable which might only provide power but not video.
Joey Tungyothin
Reviewed in the United States on October 16, 2021
The cable came in a minimal packaging. Very little waste. Love that.The cable worked right out of the box. It charged the HP laptop that I have.The transfer speed is right up there with 20Gbps.The cable is sturdy and durable.
federico
Reviewed in Italy on July 25, 2020
Ottimo cavo. Invece di spendere il doppio per un cavo Apple ,ho scelto questo è si è rivelato un acquisto azzeccato . Robusto , maneggevole , inserimento perfetto ai connettori , bello anche esteticamente con il simbolo thunderbolt e il 3. Funziona alla meraviglia . Consigliato assolutamente
Laurens
Reviewed in the Netherlands on June 8, 2020
Kabel werkt naar verwachting
Joor
Reviewed in the United States on February 13, 2020
I bought this specifically for my eGpu setup. The cable that came with the Razer Core X was just a tad bit too short. This was a good compromise for the price. The cable does exactly what it says. First, it is 40gbps. Second, it does charge at 100watts. This is where I was surprised because the cable that came with the Razer Core X was supposed to and my laptop complained that it was not charging at full capacity. After connecting this cable that message went away. That alone made this purchase worth it.After all that I decided to test my eGpu with 3dmark. The benchmarks were slightly better. Here is where I was surprised again. Before this cable I wasn't even able to run the Ray Tracing test. It would bomb each time I would try. After using this cable low and behold, the ray tracing test ran. I am not sure why the cable Razer included was so bad. Unfortunately I don't have a crazy tester like other reviewers, but I hope this helps someone on the fence about buying this cable. Last word, this cable is a thunderbolt certified cable. You can find this info on the thunderbolt website.My specs:Dell Precision 5540Razer Core XRTX 2060 Super
さきてぃ
Reviewed in Japan on October 8, 2020
購入して1か月もたっていませんが、接触不良が目立ちます。。初期不良と思われるので交換してほしいです、、【更新2020/10/13】交換品を頂いて数日たちましたが、交換品については不具合なく使えています。初期不良だったようです。ありがとうございました。
Customer
Reviewed in the United Kingdom on August 2, 2017
Good product
A.I.
Reviewed in the United States on April 29, 2017
I bought this cable to connect my new desktop PC to the 38" LG monitor (38UC99-W). The USB-C cable that came with the monitor would be just the right length to connect to a laptop sitting on the desk next to the monitor, but it was too short for a desktop PC which I wanted to put under the desk. I needed a 2 meters long cable. To run this monitor at 60 Hz at resolution of 3840 by 1600 pixels, the cable has to be able to work at 8.84 GHz. This is a very high frequency which not every cable can transmit, even for cables labelled "USB-C". I cannot tell if this product would go to the maximum specified frequency of 20 GHz, but it is definitely good enough to run a top of the line monitor. The advantage of Thunderbolt 3 / USB-C is that it combines in itself Display Port monitor output, USB connection, and digital audio stream. With just one cable between the PC and the monitor, I can use built-in speakers and use USB ports on the back of the monitor to connect keyboard and mouse. It is good that one can find on Amazon a certified Thunderbolt cable that meets the expectations and does not cost a fortune.Another thing, Thunderbolt 3 is backwards compatible with USB-C, i.e., it has the same connectors and it does everything that USB-C cable can do. It can always be used instead of USB-C. The only difference is that it is designed for even higher data throughput that USB-C standard requires.Another thing to consider is that Thunderbolt 3 is not backwards compatible with Thunderbolt 2 or 1: the connector is different.
Shopaholic
Reviewed in the United States on December 15, 2016
This is Nathan K, a Google Top Contributor program volunteer (Nexus/Pixel Support Forums), and follower of Benson Leung doing independent USB-C verification and testing. I analyzed Plugable's "Thunderbolt 3 20Gbps USB-C Cable (6.6'/2m, 3A/60W)" [Model TBT3-20G2M].This PASSIVE eMarked cable appears to comply with the USB Type-C specification version 1.2. It also has rather favorable performance characteristics, given constraints of the 2m length. Active cable designs are currently highly flawed in my opinion at this time (Dec 2016), so this is a good "long distance" USB3.1Gen1 (5gbps) data + Thunderbolt 3-20gbps data + charge (3A/60W) cable in the meanwhile.THE GOOD: The cable is properly advertised as having USB3.1Gen1 support. It is built out of Lintes ODM cable stock with good performance characteristics. It meets all SI, DCR, Continuity, and eMarker tests on a TotalPhase Advanced Cable Tester Level 2. It can be operated at 120% capacity (6Ghz) and still pass SI thresholds. The DC resistance is technically low enough to be considered a 5A/100W cable, barely. (It is eMarked as 3A for safety, correctly.) It even omits pin B6/B7 in the plug as suggested in the spec. (Bottom two front "teeth".)THE MEDIOCRE: Certain pins on the connectors have per-pin resistance that are on the high side (~12-15mOhm). This is a problem shared with other Lintes ODM cables from Belkin, so I presume it is "normal". In comparison, the j5Create JUCX01 and Anker A8181011 have negligible per-pin resistance (THE IFFY: The data rate differences between the Plugable 1m (USB3.1Gen2 10gbps) and 2m (USB3.1Gen1 5gbps) cable version is displayed in the tech specs, but could be clarified in the bullet points. The term "Certified" is used in the product title, without stating BY WHOM. In this case, I know it is "Intel Thunderbolt Certified" from background knowledge, but it is still a bit misleading. Especially when some other manufacturers are both USB-IF *and* Intel Certified. Also it is a bit expensive compared to competitors. (However as I have disclaimed in the past, I have done in-depth troubleshooting with Plugable's engineers, so at least I know where the money goes.... hopefully.)These however are MINOR gripes. I am just glad this product is "exactly as described on the tin", and of good quality to boot. So it gets an excellent rating.IN CONCLUSION: This is a very well built cable doing exactly what it claims to, with very respectable Safety Factor margins. Therefore I highly recommend it for any uses that require a 2m Thunderbolt 3-20gbps cable, USB3.1Gen1 5gbps cable, or a 60W charging cable.Data was sampled with a TotalPhase Advanced Cable Tester Level 2 and Plugable/Google Twinkie in combination with my own custom-made microcontrollers and equipment. Additional data may be verified by using Plus.
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