• 1.0 out of 5 stars

    This adapter takes more battery juice than Wifi

    Is everyone experiencing this? I've tried testing both wifi and thunderbolt adapter. My conclusion was wrong.

    Using Battery Health app I got this:
    The watts usage after 1 minute:

    Wifi ~ 9.34 Watts
    Thunderbolt to Gigabit Ethernet ~ 12.31 Watts

    I'm using ML 10.8.1 and MacBook Pro Retina.

    It's disappointing because I bought this to minimize battery usage in the first place.

    44 of 61 people found this useful

  • 5.0 out of 5 stars

    works great (adds the port that should have been there)

    I used with a MacBook Pro (Retina).

    I connected with a Cat 6 cable directly to a Mac Pro (2008) ethernet port. Using the Finder, can transfer files at about 100 MB/s (as seen in Activity Monitor during the transfer). This is way faster than the 7 MB/s I get when doing the same thing over the Airport Extreme network (WiFi 802.11n).

    Pros: works great. Way faster than WiFi. Adds a port I think should have been there (yes, even in 2012).
    Cons: Uses up a Thunderbolt port (no daisy-chaining this puppy). Is an additional thing to carry around.

    30 of 32 people found this useful

  • 2.0 out of 5 stars

    Piece of junk

    What a piece of junk this is. It used to be so easy to connect my ReadyNAS NV+ via the ethernet cable to my Macbook. Now on the new Retina Macbook Pro, there is no Ethernet port anymore so I have to purchase and use this piece of useless gear. It just does not connect reliably with the ReadyNAS and I have to unplug and plug back in for both ethernet cards to negotiate the IP address. I don't care if there is a logical reason for why this occurs. All I know as the customer is that something that was previously easy and reliable is now patchy and annoying. Apple, please fix this with a firmware or driver update for the Thunderbolt to Ethernet adapter. Please!

    68 of 96 people found this useful

  • 4.0 out of 5 stars


    Works perfectly with my new MBP with retina. Fast and effective.

    26 of 28 people found this useful

  • 3.0 out of 5 stars

    Windows 7 Problems

    I have a Macbook Air that I installed bootcamp on and primarily use Windows 7 64bit for many reasons (one being my job). I purchased the Thunderbolt to Gigabit Ethernet Adapter and assumed it worked flawlessly with Windows 7 and the Mac OS X. First I would like to clarify for the Mac OS X side, it works great, wish I could say the same for Windows. Here are the list of issues with Windows 7 and the Thunderbolt Ethernet adapter.

    1) If the computer is already turned on and booted into Windows, Windows will not detect new hardware, even if you search for new hardware under device manager. To get around this issue, you need to either plug in the adapter then reboot the computer into Windows or shut down the computer then plug in the adapter and then turn it on and boot into Windows.

    2) Windows 7 does not automatically find the driver, even if connected to the internet. For me this wasn't a problem as I am in the IT industry and was able to find the drivers in a short time, but for the average user, this can be problematic. Hopefully Apple will include the driver in a future patch for the Windows 7 Bootcamp Installer. I downloaded the driver directly from Broadcom's website (NetXtreme Desktop/Mobile drivers)

    3) Having the Thunderbolt to Gigabit Ethernet adapter plugged into the computer disables sleep mode. Even if you plug in the adapter, use it then unplug it, the only way to re-enable the option to use sleep mode is to reboot the computer. Hopefully Broadcom will write a new driver that is S3 Sleep compatible.

    Hopefully this issue will be addressed shortly. I most likely will be returning this item and getting the USB to ethernet adapter which I'm not excited about since it has slower speeds then even 100Mbps due to the limitation of USB 2.0.

    106 of 121 people found this useful

  • 1.0 out of 5 stars

    not working with MacBook Air

    This is not working for me, I tried everything, could not install the update, is says "This software is not supported on your system." Do not buy it, waste of money!!!

    42 of 92 people found this useful

  • 5.0 out of 5 stars


    As always worked their miracle when my USB Ethernet adapter stopped working after updating to Mountain Lion. Got this sweet Thunderbolt adapter and all is running smokin' fast :)

    18 of 23 people found this useful

  • 5.0 out of 5 stars

    Simple & it works for my Air.

    Works as advertised. Perfect for when i do need to connect to a hardline.

    18 of 22 people found this useful

  • 3.0 out of 5 stars

    Doesnt work on Lion on MacbookPro Retina

    Couldnt get this to operate on macbook pro retina running the latest version of Lion
    The thunderbolt software update which claims to fix this also wouldnt run
    Upgraded to mountain lion and now everything works.

    0 of 1 people found this useful

  • 4.0 out of 5 stars

    Wicked Fast, but needs to be on power!

    I thought I had a faulty one, as on my MacBook Air it didn't work - it randomly came up as a thunderbolt device, but no ethernet, or not at all.

    I then tried it on power, and "pop" - it just worked, as expected... and it is very, very fast. copying files onto the Air with it's SSD I was getting a nice solid 45Mb a second.

    This is now part of my carry around kit for the laptop - excellent when you need a little more "oomph" than you can get with the Wireless.

    24 of 30 people found this useful

  • 5.0 out of 5 stars

    Works great on Retina MBP

    Works perfectly fine on the new Retina MBP.

    740 of 846 people found this useful

  • 3.0 out of 5 stars

    Does not work for me..

    I purchased this adapter for my MacBook Air, where i also have Windows XP installed through VirtualBox. thing is, Windows doesn't recognize this device at all. I did some searching and found out that some Broadcom driver works, but only on Windows Vista & 7. I need the adapter so I can use the ethernet port to connect to Extron and Crestron Devices such as MLC's and wall controls for miscelaneous high-end media systems. Those programming apps come only for Windows. and the Adapter doesn't work in Windows, which makes me go back and return the item. Unless anybody has some suggestions how to make this work.

    38 of 70 people found this useful

  • 5.0 out of 5 stars

    Very good product!

    Now I can have ethernet port when my wifi is not working or when I am in hotels with wired connection only. At first it did not work, gave it a few minutes, plugged it again and then it is connected and ready to go! I have a Macbook Air 2011.

    52 of 57 people found this useful

  • 5.0 out of 5 stars


    The Thunderbolt to Gigabit Ethernet adapter is my first Thunderbolt accessory, and I have to say that it is one of the best Apple accessories. Small and compact, able to take it anywhere and have fast connection. Keep up the good accessory line.

  • 5.0 out of 5 stars

    Waited for update 1.2.1....works great!

    I empathise with all the 1.2.0 update users...but you know what they say, there is light at the end of the tunnel. Works like a dream!

    22 of 24 people found this useful

  • 4.0 out of 5 stars

    Works great, what else is there to say?

    Works as advertised, gives the MBA a Ethernet port for when you are at a hotel/friends house or whatever the occasion may be. Make sure you have the Thunderbolt 1.2.1 update installed or else this won't work.

    Loses 1 star because it doesn't work in Windows (Boot Camp) yet.

    22 of 25 people found this useful

  • 5.0 out of 5 stars

    2011 MacBook Air

    At first I didn't think it worked, but I looked in the Systems Network box and noticed that there was no Thunderbolt Ethernet entry. Checked for software updates and there was the Thunderbolt driver update and after a restart, it works perfectly.

    Just like you'd expect.

    Now for Boot Camp, i have 4.0 installed and I can't get this working. I'm assuming there's a BC 4.1 in the works?

    18 of 20 people found this useful

  • 5.0 out of 5 stars

    out of the box

    Worked perfect straight out of the box, just plugged it in, done.
    Only thing slowing me down now is Telstra's high speed network :)

    1 of 1 people found this useful

  • 5.0 out of 5 stars

    Great Product

    Bought it to connect a NAS via thunderbolt.. No Issues of any kind..... works like advertised......Apple Please Make a ThunderBolt To USB 3.0 Adaptor so users without usb 3 can use it also....

    22 of 22 people found this useful

  • 4.0 out of 5 stars

    Works great! (But don't buy it for MBA!!!)

    Why? This is nothing wrong with the product at all and it works great! The problem is... if you are using Macbook Air and you need to connect to extra monitor with thunderbolt you are out of luck. Either have this or the thunderbolt to DVI/HDMI adpter. I never thought of this until I bought it went home and had the "Ahhhh moment". Get the USB version instead. If you never care about extra monitor ever at all or you don't need to do presentation on bigger screens then sure go ahead.

    178 of 232 people found this useful