• 4.0 out of 5 stars

    works as advertised

    • Written by from Tucson

    I've had this adapter for about 2 weeks now. Contrary to what its name implies, it does NOT allow you to use it to drive two displays, though that's what I am doing with it by means of a second piece of hardware: Matrox TripleHead2Go Digital. Every time you attach two active adapters together, problems are bound to follow, and I do have problems waking my displays from sleep (I need to power-cycle the Matrox box to do that). Still, for an unsupported configuration, it works quite well.

    My adapter has firmware 1.3. People around here complain it does not solve the problems with firmwares 1.1 and 1.2, but that has not been my experience: I do not see noise in black areas. I do not see distorted graphics. I do not see odd lines on my displays. Neither of these is also a problem when I run QuickTime or iTunes. Pixel-wise I am driving slightly more pixels than what your average 30" display has, so I am pushing this adapter close to its limits.

    My complains are the following: (1) compatibility with my video extender (I wish). (2) price: this is effectively a $80 fine for running decent graphics! (3) design requiring this adapter be powered through a USB port on your laptop: show of hands, how many people enjoy being able to cook eggs on their keyboard? (4) USB port on the face of the adapter is drained of virtually all power, so nothing works off it.

    23 of 27 people found this useful

  • 4.0 out of 5 stars

    Works for nVidia 3D Vision

    • Written by from Woodland Hills

    Using this Dual-Link DVI adapter with my 2010 Macbook Pro (Core i7 + nVidia GT 330M) allowed me to use nVidia 3D Vision under boot camp with Windows 7. The regular DVI adapter is only capable of 60hz output, but under boot camp this adapter will allow a 120hz output from the GT 330M thus letting 3D Vision work. I primarily need 3D Vision in order to view stereoscopic visual effects footage for work and was thrilled to discover I could do this with my existing Macbook Pro. I'm using the Asus VG236H monitor and it works perfectly. I also fired up Portal just to see if it would work in 3D vision and to my amazement it ran well in 3D even under fairly high settings despite the fact that nVidia's system requirements state you can't do this.

    Unfortunately, I have to deduct a star as I'm unable to output 120hz to my Asus display under Mac OS X with this adapter. It shows options up to 75hz but they are all greyed out and the only mode I can use is 60hz under OS X. Windows 7 will allow you to use the full 120hz.

    20 of 21 people found this useful

  • 2.0 out of 5 stars

    Buyer Beware

    • Written by from Ashburn

    The firmware on my adapter was version 1.03. I bought it to use with my mac mini (mid 2010) and 30" LG W3000H LCD monitor. Like many others, I had a lot of noise and flickering on my display. Took the adapter and mac mini to the Apple store and used it on one of their 30" Apple Cinema Display and it worked perfectly. Took it to a friends home and used his 30" ACD, again, it worked perfectly. My monitor works with any PC with a DVI connection, so I know it's not the the monitor. I guess it will only work with Apple Displays and not the other brands. I ended up returning the adapter. It's a shame Apple can't make it work with other LCD monitors.

    21 of 23 people found this useful

  • 1.0 out of 5 stars

    Disapointing

    • Written by from Tigard

    I join the rank and file here. Worked with my new MacBook Pro for a week then just quit.

    20 of 21 people found this useful

  • 1.0 out of 5 stars

    Stopped working.

    • Written by from Richland

    Worked great for a few months and then....bang. Nothing. For an outrageous $99 this thing should at least last a year!! What was wrong with the old system and a direct DVI connection? One of the nicest features of the older MacBooks. Is this progress? Or just an evil method of Apple collecting another $100 from everyone to be able to plug into a monitor?

    19 of 20 people found this useful

  • 1.0 out of 5 stars

    OMG...!

    • Written by from Fort Myers

    Okay...Here it comes:
    This is the worst disappointment of all time.
    The Dual-Link DVI Adapter is an absolute failure by Apple in my opinion.
    Being quite the Apple nerd, I was certain that I could get it to work....NO...!
    It didn't work....I faced a barrage of problems: Screen flicker, video drop-outs, noise.. Finally just nothing at all. ZERO. Why Apple would take away a perfectly good DVI port on their MBP, and put this pathetic low-power mini-display port in, is beyond my understanding. The DVI port worked perfectly...PERFECTLY...I could EASILY drive the 30-inch monitor from my "old" MBP. Then..I buy a brand new MBP (with a mini display port) and it's a step BACKWARDS. Shame on you, Apple. You must have KNOWN that this wasn't going to work...why in the world would you EVER sell a band-aid for a hundred dollars...? You can drive a 23" inch monitor fine...by using the mini-diplay to DVI pig-tail plug. No prob. But I hope no one else goes through what I did. Tearing out an entire system out of office furniture...wires and plugs, etc..to put this thing in...all excited about a big, rich 30" screen. Now I have to tear it all out, and go back to 23"... Sorry Apple...this ranks worse than the reception problems on your iPhone 4....which I also own...when did it become okay to do this to your customers...? You are suppose to be different from all the others. Now it seems you're cutting corners....sad.

    20 of 22 people found this useful

  • 1.0 out of 5 stars

    Doesn't work

    • Written by from Morgan Hill

    Like so many others, this adapter does not work for me. I get a constant flicker that will not stop (unlike the occasional ones others have complained about). I have tried plugging it into both an Apple and a Dell 30in, both with the same problem. I have tried a bunch of the workarounds listed in the forums to no avail. I've tried this with 2 separate adapters. And of course, I tried them with a colleague's MacBook Pro (he got his about a month before me) and it works fine!!!! So I don't know if it's the adapter, the computer, or a combination. But in any case, now I have to keep using my Lenovo Vista machine to do any real work until this is resolved. I'm a designer constantly in the Adobe Creative Suite and I'm not willing to go back to 1440x900 just to use this computer that doesn't work with the newest technology. Very disappointing. I'm anxiously waiting for a recall and replacement program.

    18 of 18 people found this useful

  • 1.0 out of 5 stars

    Awful

    • Written by from La Veta

    Starts off ok, but over time this becomes almost unusable. I've used the Mini DisplayPort to Dual-Link DVI Adapter for just over a year with a 2011 MacBook Pro with Thunderbolt port and Dell 30" monitor. For the first few months I didn't have any problems, or none that couldn't be fixed by simply toggling the monitor off/on. But over the last few months the problem has increased in frequency and severity. Often the only way to get my monitor back is to shut down my system for an hour. If I'm lucky I may get a few hours of work afterwards. If not the snow/distorted pixels, flashing, blinking, and gray/black screen will reappear a few minutes after starting up.

    I did not have any problems (and still don't ) using this monitor with a 2007 MacBook Pro with built in Dual-Link port.

    Sorry, it there are typos in this post. My monitor is blinking on and off and pixels are distorted with snow, so I can't proofread what I've typed.

    21 of 25 people found this useful

  • 3.0 out of 5 stars

    Firmware Version 1.03 does not eliminate "flickering snow" problem

    • Written by from Cedar City

    I tried this adapter with a NEC PA271W monitor. I am using a 17" MacBook Pro (2011 model, 8GB RAM) with OSX 10.6.8. Initially, I was experiencing the "flickering snow" problem about 25% of the time when my computer woke from a sleeping state.

    It was very frustrating to have to cycle the monitor off and back on or to unplug it from the computer and then reconnect it so often to clear up the display.

    It was able to reduce the frequency of the problem by connecting a USB cable between the monitor's Upstream USB Port 1 and the USB port on the Adapter. But this did not eliminate the problem.

    NEC tech support sent me a Mini DisplayPort-to-DisplayPort cable (NEC Part Number PA-MDP-CABL, price $29.99). They also instructed me to connect an A/B USB cable between the monitor's Upstream USB Port 1 and the computer.

    So far, this has fixed the problem.

    This cable does support the Monitor's highest resolution, 2560 x 1440, 60 Hz.

    I do not know how well this particular cable will work for non-NEC monitors. There is a latch on the end of the cable that locks into the DisplayPort on my NEC monitor. I do not know if the DisplayPort connections on monitors from other manufacturers have the same fitting.

    19 of 21 people found this useful

  • 2.0 out of 5 stars

    Microsoft like solution

    • Written by from New York

    Sure it works but instead of plugging directly into the computer now I need two adapters plus it takes up additional USB port. A major hassle not to mention that it's expensive!

    18 of 19 people found this useful

  • 4.0 out of 5 stars

    Pricey but does the job fine

    • Written by from Chicago

    It is pricey, and honestly it is one of the things that help me off from buying a new macbook pro. Unlike some of the people here that have had issues though, I am using this with a new 15" macbook pro i7 and a Dell 3007WFP-HC 30" monitor for the last week and have not had any issues. No flickering, needing to restart, etc. I am also not a fan of this taking up another usb port, but if you use a good powered usb hub, it isn't really an issue. i don't see many alternatives for this and it works fine for me.

    17 of 17 people found this useful

  • 1.0 out of 5 stars

    Doesn't work!

    • Written by from Waxhaw

    Plugged it in to my MacBook Pro with my 30" Cinema Display, worked once only with flickering results. Apple doesn't seem to be interested in resolving this faulty issue with this product. Very sad.

    18 of 19 people found this useful

  • 1.0 out of 5 stars

    1.3 is garbage too!

    • Written by from Parker

    I just went to the Apple Store, had them open the package and connect it to a computer to confirm the latest firmware 1.3 before I left the store. The Apple Store employee told me that they would sent any old units back to Apple, and they only sell the most up to date version.

    I take it home, and try connecting to both my 2009 Mini Mac AND my new 2010 i7 MacBook Pro. Same thing as everyone else. In the black parts of the screen there are white flashing lines. It looks like garbage, and I will be taking it back.

    I have a love/hate relationship with Apple! My 30 Cinema display looks great on my 2006 MacBook pro with Dual link DVI built in! Looks like garbage on all my newer macs. Thanks Apple!

    17 of 17 people found this useful

  • 1.0 out of 5 stars

    A great disappointment

    • Written by from Soquel

    I bought a 30" cinema display, and loved it. Then I bought a new MacBook Pro with the dreaded mini DisplayPort. No problem Apple has a converter box, right? WRONG.

    This is a terrible piece of junk. Any area of the display with a single dark color is plagued with noise. It wrecked my investment. Thanks for letting me down Apple.

    18 of 19 people found this useful

  • 1.0 out of 5 stars

    Firmware version update?

    • Written by from Wien

    I also have sometimes pixel noise, it can be seen best on black background and it mostly happens when the display wakes up from sleep.

    I just read the review which says that there is a new firmware version (1.02) that might fix these problems (mine has 1.01). Is there any chance to update the firmware version myself?

    20 of 23 people found this useful

  • 1.0 out of 5 stars

    flashes and ghosts

    • Written by from Bozeman

    Don't buy this. About five times a day I have to pull the cable out to get it to stop ghosting the 30" Dell and then reposition open apps back onto the 30".

    18 of 19 people found this useful

  • 4.0 out of 5 stars

    Works well with a good cable (2012 15" Retina MBP)

    • Written by from Ballston Lake

    I bought this too hook my MBP up to a Yamakasi Catleap monitor. Works great with very few issues. Once in awhile after waking from sleep, the monitor will have static in the picture, but if I just turn it off and on, it goes away. Extended use does not yield any sort of issues.

    It is a little expensive, but most dual link dvi->mini display cables are. The relocated USB port is actually convenient for plugging my VPN token in, as it ends up right in front of me on my desk.

    16 of 16 people found this useful

  • 1.0 out of 5 stars

    Complete and utter junk

    • Written by from New York

    Causes snow on the monitor every time after waking up from sleep and the only solution is to turn off then on the monitor. For $100 I expected much much better quality which this product is far from.

    19 of 22 people found this useful

  • 1.0 out of 5 stars

    Doesn't work with 2007 Dell 3007WFP

    • Written by from Renton

    I can only get a small % of the dell 3007WFP resolution.

    22 of 28 people found this useful

  • 5.0 out of 5 stars

    Worked Perfectly

    • Written by from Victoria

    I had concerns about buying this because of all the bad reviews but went ahead anyway because I would have had to buy a new monitor. It worked perfectly for connecting a mac mini to a 30 inch Apple Cinema display with full 2560 x 1600 resolution. I found it awesome!

    17 of 18 people found this useful