Search  for anything...
OWC

OWC Thunderbolt 3 10G Ethernet Adapter, for High-Speed Network Connections, RJ45 Port Supports 10Gb/s, 5Gb/s, 2.5Gb/s, 1Gb/s and 100Mb/s Base-T, Compatible with Thunderbolt 3 or 4 Ports

  • Based on 306 reviews
Condition: New
Checking for product changes
$139.99 Why this price?
Save $59.01 was $199.00

Buy Now, Pay Later

As low as $23.33 / mo
  • – 6-month term
  • – No impact on credit
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout.

Payment plans are offered through our trusted finance partners Klarna, PayTomorrow, Affirm, Afterpay, Apple Pay, and PayPal. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Selected Option

Free shipping on this product

This item is eligible for return within 30 days of receipt

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

Availability: In Stock.
Fulfilled by Amazon
Arrives Saturday, Jul 19
Order within 23 hours and 31 minutes
Available payment plans shown during checkout

Recently Viewed

Size: Thunderbolt 3


Features

  • Securely and cost-effectively connect your Thunderbolt 3 equipped Mac or Windows PC to high-performance wired networks delivering up to 10 times the performance of Gigabit Ethernet
  • Silent Operation with Robust, Heat-Dissipative Design. Includes 0.5M (18") Thunderbolt 40Gb/s Cable USB-C to C (detachable); Connects to any Thunderbolt 3 or Thunderbolt 4 computer port
  • Blazing-fast:10Gb Ethernet connectivity; over 900MB/s real-world tested transfer speed for large file transfers, video editing, and live streaming gaming sessions; Bus powered, energy efficient; Ethernet port supports 10Gb/s, 5Gb/s, 2.5Gb/s, 1Gb/s and 100Mb/s Base-T; Connect to any wired network via the RJ45 port
  • AVB ready: perfect for use in pro audio and video applications where synchronization of data streams is critical; Ideal for professional video applications where frame-accurate access is critical (AVB functionality requires AVB compatible switch/router.)
  • Compatible with macOS 10.13.6 or later and Windows 10 (64-bit edition) and later; No drivers required for macOS; Compatible with the Intel NUC Thunderbolt 3 connection; Includes: (1) Thunderbolt 3 10G Ethernet Adapter with detachable 0.5m Thunderbolt 3 (40Gbps) cable, Quick Start Guide, 1 year OWC Limited Warranty

Brand: OWC


Hardware Interface: Thunderbolt 3


Color: Black


Compatible Devices: Desktop


Product Dimensions: 5"L x 3.1"W x 1.5"H


Data Link Protocol: Ethernet, Gigabit Ethernet


Data Transfer Rate: 900 Megabytes Per Second


Item Weight: 16 ounces


UPC:


Compatible Operating System Family: MacOS, Windows


Product Dimensions: 4.5 x 1.1 x 3.1 inches


Item Weight: 1 pounds


Item model number: OWCTB3ADP10GBE


Is Discontinued By Manufacturer: No


Date First Available: November 6, 2018


Manufacturer: Other World Computing


Country of Origin: Thailand


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Saturday, Jul 19

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Similar Products

Top Amazon Reviews

    • Fast and Stable
Size: Thunderbolt 3
Good consistent connection. Works as advertised. Just runs a little hot though
Reviewed in the United States on July 1, 2025 by Kiran Vajja
    • Works as advertised and robustly built.
Size: Thunderbolt 3
Works very well and is "plug and play" foolproof. For some reason my system took about a minute to identify and get the drivers for it but all is well. I like the rubber casing around the metal of the NIC itself.
Reviewed in the United States on April 29, 2025 by Blue Sky
    • Unreliable for Mac Users – OWC Aware of Issue but No Fix
Size: Thunderbolt 3
I purchased the OWC Thunderbolt 3 10G Ethernet Adapter for use with my iMac M1 running macOS Sequoia 15.3, expecting a reliable high-speed network connection. Instead, this adapter has been nothing but frustrating and unreliable. It randomly disconnects, especially during large file transfers, sometimes even corrupting files. After extensive troubleshooting, including resetting network settings, replacing cables, upgrading macOS, and following every step OWC suggested, the issue still persists. OWC support has acknowledged no known compatibility issues, yet they have no firmware fix or solution. Their only recommendation? Return it and try another unit, as if that’s a real fix. This suggests they are aware of the issue but unwilling to properly address it. If you're planning to use this adapter in 10G mode on an M1 iMac running macOS Sequoia 15.3, be warned—OWC knows about the problem but has no resolution. Unless you're willing to deal with frequent disconnections and weak customer support, avoid this product. I expected better from a brand like OWC, but this has been a major disappointment. ... show more
Reviewed in the United States on February 22, 2025 by JR
    • Great speed, easy to use, very hot
Size: Thunderbolt 3
My MacBook recognized this instantly and I am getting great speeds! Here is a local test done connected through a 10Gb switch: laptop:Downloads me$ ./iperf3 -c 10.2.220.104 Connecting to host 10.2.220.104, port 5201 [ 6] local 10.2.93.106 port 64591 connected to 10.2.220.104 port 5201 [ ID] Interval Transfer Bandwidth [ 6] 0.00-1.00 sec 1.05 GBytes 9.03 Gbits/sec [ 6] 1.00-2.00 sec 1.07 GBytes 9.20 Gbits/sec [ 6] 2.00-3.00 sec 1.07 GBytes 9.15 Gbits/sec [ 6] 3.00-4.00 sec 1.01 GBytes 8.64 Gbits/sec [ 6] 4.00-5.00 sec 1015 MBytes 8.51 Gbits/sec [ 6] 5.00-6.00 sec 1.02 GBytes 8.76 Gbits/sec [ 6] 6.00-7.00 sec 1018 MBytes 8.54 Gbits/sec [ 6] 7.00-8.00 sec 1.01 GBytes 8.65 Gbits/sec [ 6] 8.00-9.00 sec 1024 MBytes 8.59 Gbits/sec [ 6] 9.00-10.00 sec 995 MBytes 8.35 Gbits/sec - - - - - - - - - - - - - - - - - - - - - - - - - [ ID] Interval Transfer Bandwidth [ 6] 0.00-10.00 sec 10.2 GBytes 8.74 Gbits/sec sender [ 6] 0.00-10.00 sec 10.2 GBytes 8.74 Gbits/sec receiver iperf Done. This adapter gets very hot. I have been thinking about sitting my coffee cup on it to keep it warm, but that would probably void my warranty... ... show more
Reviewed in the United States on May 13, 2019 by Daniel F
    • Exactly 10g
Size: Thunderbolt 3
Works at 10g as advertised. No problem with it after months of usage and never dropped. Nice.
Reviewed in the United States on June 1, 2025 by canalpa
    • Works As Expected, Even Though It Looks Used
Size: Thunderbolt 3
I decided to upgrade my home network and bought this adapter to use on an M1 Mac Mini. The product itself works great, gives me fast transfers and barely even gets warm no matter how much I use it. However, I ordered and paid for a NEW product and "fullfilled by Amazon" sent me one that appeared to have been previously opened/used. When I opened the product box, this adapter sat on top of the plastic bag that it should have been inside of. Either OWC's quality control missed this or I got a used product. Since I never had a problem with the device, I let the return window close and just continued using it. At this point, I have had the adapter for several months and have been very happy with its performance. Hopefully, this review was helpful to you. ... show more
Reviewed in the United States on February 4, 2025 by MWCraft
    • This did the trick and file transfers are lightning fast!
Size: Thunderbolt 3
I bought the 10 Gbps Ethernet Adapter but wanted to move files fast so I thought "Thunderbolt" gets things moving fast so I bought this OWC Thunderbolt 3 10G Ethernet Adapter and I didn't believe how fast my files got from my MAC to my server. This is very impressive, and you will not be disappointed. You'll be closer towards the "Amazed" frame of mind!! One word towards troubleshooting I observed. If you are running a VPN, it can interfere with the connection. My Mac PC is temperamental when it comes to network connectivity, and I found out my VPN was causing more trouble than I gave it credit for. Once I turned off my VPN, smooth sailing from then on. I hope this helps ... show more
Reviewed in the United States on September 20, 2023 by 2CLOS2C
    • Quiet and speedy!
Size: Thunderbolt 3
I enjoy products that just work and are consistent out of the box. This one is rock solid. Does heat up a little but overall editing from a 10Gbps NAS is flawless.
Reviewed in the United States on December 28, 2024 by Mark and Jenn Davis

Can't find a product?

Find it on Amazon first, then paste the link below.