Reviews for Mini DisplayPort to Dual-Link DVI Adapter

Mine works perfect and have no problems with my Apple 30 inch display. Reading all the reviews almost kept me from purchasing this spectacular display as I am using it with a unibody Mac Book Pro 15 inch. Maybe the new firmware fixed the problems?

Worked fine with an HP LP3065 monitor, for a while. I was banging away at a document earlier this week and the screen went black. Thought I heard a very quiet 'pop' so I assumed it was the monitor. Not so. HP's trouble shooting revealed that it hadn't dropped dead. I connected the Mac to another monitor via another adapter. No problems there. Then I envisioned that call with Apple about this $99 adapter, then obviously the culprit. Is there another one you can try? Nope - this is the only $99 accessory that I have ever needed for connecting a computer to a peripheral device.

I bought another one from Amazon. If you have a dual-link DVI monitor, you really don't have much choice but to shell out for this thing. Plugged it in (after checking one more time to see if the old one had fixed itself) and sure enough the replacement solved the problem. I called Apple then, and at least they are willing to ship a replacement, to arrive in 2-5 days. I guess I'll have a spare.

Given the hassle I wish I'd sought an aftermarket mini-DVI compatible monitor (not that there are many of those). Apple really needs to examine its perspective on video ports. If the designers are going to demand an adapter, and Apple is going to charge a whopping premium for it, it should at least be a quality product.

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!

I encountered the screen flickering issue mentioned by other users, but fixed it by getting a powered USB hub that I plugged the USB plug from the dual-link DVI adapter into.

Because the dual-link adapter doesn't work properly without a separate powered USB connector, I give this product 2 stars. It's basically junk without the powered USB connector.

Many issues with this adaptor. My 30 inch display works fine with my MacBook Pro and a WIndows 7 PC but with my Mac Mini (mid 2010) no go - constant flickers, blackouts and the display flashes a "video not supported" error. Lot's of turning off/on, disconnecting, etc.

I had to get this adapter when I went from my previous generation MacBook Pro 17" to a unibody 17" so that my Apple 30" display could display at native resolution (2560x1600).

Sadly, whenever 1/3 or more of the display is dark to black, all kinds of horizontal interference lines randomly flash in those dark areas. If the screen is half or more black, this effect is unprofessional, highly distracting, and a constant reminder how much Apple really screwed this one up. It blows my mind how this product got out of QA and has been selling for well over a year now. Not only is this product unacceptably flawed, but so is the Apple department that oversees this product for letting it get though QA.

I'm a hardware and software engineer (and an Apple developer to boot) so I think see what happened here. Apple built-in the display hardware (dual link DVI) in the previous MacBook Pro 17" (it did cost $3000, remember?), but they removed this support in the latest generation (likely to cut costs). The product is so flawed that I suspect there's something bigger going on behind the scenes for it to have made it past QA.

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.

Rating is 5 stars for eventual performance, 1 star for putting many defective adapters on the market and making me (and many others posting comments here) deal with this. Average rating then = 3 stars.

I have one of the original Apple 30" Cinema Displays which has worked flawlessly for over 5 years with multiple Macs. It has the original full size DVI connector on the end of the cable. When I recently upgraded from a 2006 MBPro to a 2010 MBPro I had to buy the dual link DVI mini displayport adapter to drive the 30" to full 2560x1600 resolution. The first adapter created the horizontal video lines on the 30". They would appear only in areas displaying dark colors. Apple Support (phone call) had me unplug EVERYTHING except for the monitor. They had me reset the PRAM (power-command-option-P-R for 2 sec) and then reset the SMC (shift-control-option-power) to no avail. So we made a Genius Bar appt and I took the adapter and my new MBPro back to the local Apple Store. We plugged my MBP and this adapter into one of their new 30" Cinema Display HD monitors in the store. Of course, everything worked perfectly.

After some head scratching and no satisfactory explanation, they swapped out the adapter for a new one and sent me home to try out. If it still didn't work I was prepared to go back with adapter, MBPro, and my 30" monitor. Luckily, It worked fine when I hooked up everything at home. So take your adapter back if you see these horizontal video lines appear. It solved my video noise problem, it may solve yours.

This is perhaps the worst computer product I have ever purchased. It is extremely large, takes two USB ports to run and although it provides an additional USB port it is too underpowered to even recognize, let alone mount an external drive. I now have a situation where I have to solve the USB port deficit because of this USB hungry device.
The performance issues cited in other reviews are true with my experience also. I am running a 20" external Samsung display and have had repeated trouble getting it to mount the display, wake from sleep, etc.
This product is a DOG. Do yourself a favor and look for a cheaper, more elegant solution. This product is a rip-off.