• 2.0 out of 5 stars

    video blanking out on Retina 12" Early 2016 MacBook, even in macOS Sierra

    I have a brand new Early 2016 MacBook, 512GB storage, 8GB RAM, driving a 4K display.
    Video keeps blanking out, sometimes every couple of seconds, other times once every several minutes to tens of minutes.
    Rebooting doesn't always help. I did the firmware upgrade and all. I started with El Capitan and just upgraded to macOS Sierra.
    I tried with or without a powered HSB hub with or without hard disks.
    Nothing seems to make a difference. It is hard to reproduce the problem.

    I had no problem driving the monitor in 4K resolution from a MacBook Pro using the same HDMI cable. So I think the HDMI cable I used is certainly capable of driving 4K, but the adapter itself may be pickier about the cable.

    After reading other reviews, I went out and bought an HDMI 2.0 cable. Well, it would not even properly detect the display! it seemed worse than using the default HDMI cable that came with my 4K monitor.

    I am not sure what to do. I can't find my receipt, and it's just a few days old.

    61 of 64 people found this useful

  • 5.0 out of 5 stars

    Works Like A Charm

    I have an LG 34" Ultrawide Display. The USB-C Adaptor is easy to use and connects my Macbook to the LG display just fine. The resolution is terrific At the highest range. It's a snap to setup. The USB-C also accommodates charging and an external USB mouse (which I prefer to the Apple Mice).

    I do think it all looks a bit messy with all the cables in plain site jutting from the left-side. A longer connector and likely from a third-party vendor will hopefully solve that small issue.

    I am aware of others comments about intermittent HDMI signals and some hissing. I've not experienced any of that. If I do I'll circle-back and update accordingly.

    11 of 33 people found this useful

  • 1.0 out of 5 stars

    Expensive Piece of Junk

    If you'd like to spend 80 bucks on an accessory that will cause your external monitor to blink on and off all day long... look no further!!! This is the accessory you've been dreaming of.

    I've tried different monitors. I've tried different HDMI cables. Nothing seems to help. This thing is incredibly frustrating to use.

    If you do decide to call support, expect to be on the phone for an hour only to be told "try plugging it into another port" on your single port usb-c macbook...

    795 of 842 people found this useful

  • 2.0 out of 5 stars

    Intermittent Video With AND without this adapter

    I am having the problem with intermittent video when I use this adapter, but also when using and LG LG 27UD88 W USB-C Monitor. First the charging cable that comes with your Macbook Retna does not carry the video signal. I found this out when trying to plug my Macbook Retna into this monitor with the apple cable. I had to use a third party cable to make it work. And while it works, I have the intermittent video issue on the LG with direct USB-C connection or if I use the USB-C Digital AV Multipart Adapter.

    This makes me believe it is a problem with the USB-C on the Macbook itself. Not the adapter.

    I am going to try upgrading to Sierra later today to see if this fixes the intermittent video issue and will report back later.

    31 of 31 people found this useful

  • 1.0 out of 5 stars


    For 79.00 I would have expected better. The first adapter broke within thirty days, the second two months later. This is by far the worst Apple product I have purchased to date.

    74 of 76 people found this useful

  • 1.0 out of 5 stars

    Worst Apple Product I've Owned

    I bought the 12" under the notion I could use the USB C adapter when needed. This adapter is absolute garbage and finally failed altogether today. It would occasionally get super hot (like something's shorting out) if I would leave my phone connected to my computer overnight. I mean computer, phone, adapter all on a hard surface (not covered in bed) and only the adapter is hot. Don't leave anything connected to this piece of junk long. I'm highly disappointed in apple for this product. I have a $1200 computer with no reliable way to connect a USB.

    58 of 59 people found this useful

  • 1.0 out of 5 stars


    Constant issues with this dongle and can't properly keep a signal via HDMI. Incredibly poor considering the price that Apple charges for this.

    49 of 49 people found this useful

  • 1.0 out of 5 stars

    Needs to frequently reconnect

    Like others said, the HDMI port connection works intermittently, and sometime the external display just goes crazy and I would need to reconnect to make it work. Let alone it only has one HDMI port so that I cannot use two external monitors like before. Very disappointed.

    47 of 47 people found this useful

  • 1.0 out of 5 stars

    It has an issue with a work around.

    I'm on my 5th Mac, a new 12" MacBook. I've never had a product issue. Until now.

    I've been having intermittent HDMI issues like a lot of others. But another review here pointed out that starting the Mac while everything is plugged in, works. I suppose there's some kind of negotiation going on (HDCP?) that needs the entire HDMI path plugged in at boot to work properly. This is a problem. While the HDCP aspects of HDMI were horribly engineered and very poorly implemented by the industry, the HDMI port on my work MacBook Pro never has a problem connecting to a monitor or TV. So Apple has the know how.

    There are third party versions for less than half the price. I would recommend doing research before buying Apple's.

    48 of 48 people found this useful

  • 1.0 out of 5 stars

    No 4K HDMI or USB-C data transfers!

    No support for 4K over HDMI or USB-C data transfers. It can only be used to charge over USB-C.
    Looking to connect a new screen? Forget it.
    Looking to connect a USB-C external hard drive? Forget it.
    Looking to connect two external hard drives for backups? Forget it.
    You are probably better of buying an third-party adapter.

    35 of 37 people found this useful

  • 1.0 out of 5 stars

    Terrible - DO NOT BUY

    I must restart my computer after I plug into my monitor at my desk. If I don't the screen will blink off for several seconds every so often until I do. When I first plugged in the adapter it prompted me to install an update. And then it prompted me again. And again and again. It finally stopped prompting me, but the problem never got fixed. This is so far below the quality that everyone expects from Apple. Go on Amazon and buy an adapter that actually works for less than half the price.

    42 of 44 people found this useful

  • 2.0 out of 5 stars

    Adapter or Macbook the cause of display issues on TV?

    Since taking delivery of a 12" Macbook a month ago, I have had continuous display drop outs when the Macbook is connected to my TV via the multiport adapter. I initially tried a different HDMI cable (did not solve the issue), then I tried a different external monitor (still did not solve the issue). Eventually I tried an SMC reset which DID solve the problem - at least for 2 weeks. But then the same old blank/flickering display issue started over. Another SMC reset has helped so far...

    Question is: is the root cause the adapter or the Macbook itself? I may end up returning both items if this issue cannot be solved...

    25 of 25 people found this useful

  • 1.0 out of 5 stars

    Works Intermittantly... Do not buy!

    This USB-C Digital AV Multiport adapter doesn't recognize thumbdrives most of the time. It usually takes repeatedly inserting and reinserting the adapter or the drive in order to get the drive to even register. The HDMI port has the same issue. Occasionally the HDMI signal just cuts out completely a long with the screen of my Macbook, requiring a hard reboot to bring everything back up. I would have expected more for $80.00

    33 of 34 people found this useful

  • 4.0 out of 5 stars


    Originally I would have rated this one star, but after some time debugging with a Genius it now works great. The genius was also puzzled, but had some internal documentation that said you need an "HDMI 1.4b" cable. Turns out this is wrong (it's what I had been using already). You need an HDMI 2.0 AKA "High Speed" cable. Apple sells them for $22 (we used one to get the adaptor working) but even the genius said go get one at Amazon or CVS. I got a $3 one and have no problem with a full UHD display, when before it was a flickery, dropout-y, noisy mess.

    Even though it now works perfectly I rate it only four stars because I had to spend time at the apple store debugging the adaptor and figuring out what was not in the manual. Grr!

    52 of 56 people found this useful

  • 1.0 out of 5 stars

    I purchased the macbook 12" because I trusted there is an adapter - fail

    screen flickers every few seconds, both adapter and macbook are brand new.
    I tether my camera to the laptop. the connection is not stable enough, so can't be used for what I bought it for.
    Lost a lot of money, apple does not care.

    35 of 37 people found this useful

  • 1.0 out of 5 stars

    The femaile USB port on this adapter is only USB 2.0 (2006, anyone?)

    Amazingly, Apple does not sell a USB-C 3.1 to standard USB adapter that is USB 3.0. Both this AV Multiport Adapter and the plain USB-C to USB adapter is only USB 2.0. Wow - and that only begins the actual problem with it. For both adapters, frequent restarts are necessary to get a USB peripheral to be recognized. Unplug from the charger, plug in the adapter and a USB HD, and nothing. Restart the computer and there it is. Until you sleep the computer, that is. Restart again!! What a mess.

    Also note how careful Apple is not to disclose this rather important information on the website or in the description of its capability - no link to a spec sheet, either. That describe it as "standard" USB - well, in this modern world USB 3 is standard (since a few years now.) Sneaky, really.

    Insofar as what others have said about loosing HDMI - count me in as well. Since the plain jane - should be so simple - USB-C to USB adapter also has the same issue with needing restarts to see peripherals most of the time, but not all of the time, I suspect the issue is with the USB-C port on the MacBook. Bye, bye MacBook. First time I have to return an Apple machine in 25 years! You look like a totally incompetent dork if you take this thing to a presentation to hook up to a larger screen. The only work-around is to take along an Apple TV and AirPlay it to the presentation screen. Clunky, at best. So disappointing.

    50 of 52 people found this useful

  • 1.0 out of 5 stars

    Not working properly... Flickering

    This adapter is not working properly. At this price, this is just scandalous...
    It flickers every 2/3 minutes, sometimes goes black and you have to wait 5/6 seconds to have it back. You can't work properly in those conditions...

    Apple, please do something. Thanks.

    38 of 40 people found this useful

  • 1.0 out of 5 stars

    HDMI Slowly Degrading

    When I received this laptop, I immediately bought the Multiport Adapter, as I use an external monitor and microphone at work, requiring all inputs. I've had the laptop for maybe 2 months. The HDMI input never worked very well - the monitor loses connection frequently, then immediately reconnects on its own. Now it won't connect at all unless I treat it like an old nintendo cartridge (wriggle it, blow on it, beg it to work). Will be requesting a replacement because I cannot work without it, but hoping Apple will do a redesign to fix the issues.

    24 of 25 people found this useful

  • 2.0 out of 5 stars

    For some reason didn't work

    I tried 2 of them but somehow does not work on my macbook- not sure what went wrong.

    4 of 4 people found this useful

  • 1.0 out of 5 stars

    Don't buy!

    Doesn't work since firmware update unless you reboot your MacBook. BugReport failed to resolve this issue since! Deserves a negative rating.

    5 of 6 people found this useful