So... A couple of years ago I purchased a Thunderbolt capable motherboard (Gigabyte GA-z77X-UP5), and an Apple's 27-in Thunderbolt Display--rather than it's (now-discontinued) Apple LED Cinema display--to go along with my Apple iMac 2010 (as a dual-display setup) which I was primarily using as an LED monitor for my Windows 7/8 PC. Boy was that a mistake... LOL . Thunderbolt support on non-Apple computers was TERRIBLE back then. Maybe it still is terrible still, but I got some good news after all this time.
I had nothing but problems trying to get the Apple Thunderbolt Display to work alongside my ATI Radeon HD 7970 and the iMac (display port LED monitor).
Jun 16, 2015 What Thunderbolt 3 Means for PC Connectivity: An Explainer. Along with USB-C, Thunderbolt 3 shares a very compact, interchangeable port that delivers fast throughput rates. We do not recommend using the Apple Thunderbolt 3 to Thunderbolt 2 Adapter on a PC Desktop / Laptop as it may not work. In our tests using a Gigabyte Motherboard with USB-C, the Apple Adapter worked. However using a late model Dell XPS 13 laptop, the Apple adapter did not work. In both cases, the StarTech Adapter worked. However, PC makers largely ignored it, focusing instead on USB 3 for high-speed data transfer (a technology Apple also adopted, though after PC makers). And pundits periodically panned Thunderbolt. MSI MEG Trident X – Best Gaming Mini PC. MSI MEG Trident X packs so much power in a compact.
- LucidLogix Virtu MVP Software was buggy and unstable.
- Photoshop wouldn't work with graphic card acceleration support.
- Trying to see the BIOS (post screen) was non-existent with the Thunderbolt display. Had to unplug that and only use the iMac display port connection connected to the ATI Radeon HD 7979.
Long story short, I ended up using my 27-in iMac as a primary monitor, and had the Apple Thunderbolt Display sitting on my desk for 2 years, doing nothing but looking sweet... Because if nothing else, Apple has my kind of taste when it comes to appearances. I love modern/minimilast/industrial, or whatever you want to call this, style...
This was the initial studio setup about 3 years ago... The Apple devices look great. And, if you're wondering, yes I primarily use Windows, but have no problems using Apple OS X. I've been obsessed with computers since the Amiga and Commodore 64 days; before most people thought of computers as something that only nerdy people use--that is before 'nerdy' or 'geeky' was considered a positive attribute.
Anyhow...
On to the main point of all this... Just today, as I'm extremely swamped with projects, and BOOM, the iMac completely died, the screen turned off and the internal fans went full blast, shooting dust and black crap out it; never heard the fan anywhere near that loud (but I did read a while back that people experienced this when they tried replacing their HDD and the internal temperature sensor wasn't reconnected properly--on my the HDD went bad about a month ago, making OS X useless (took like 10 min to boot) but I didn't mind since I was only using it as a monitor. So I was like, 'shit... at least I still have the Apple Thunderbolt Display' ...
So not having to worry about dual-display, or having to use my ATI card for any 3D or Video production intensive tasks, the integrated Intel HD 4000 display is good enough for my current needs.
So I plug in the Apple Thunderbolt Display, and 'BOOM it works! Awesome!' ... Now after coming off my relief and excitement, I now notice a GLARING problem: the display is extremely bright. It's almost impossible to use it at this brightness level; especially at dark.
'Oh man... knew things were going too good...' So, thinking back at my, nothing but grief, history with the Thunderbolt Display, I'm not too optimistic on finding a solution.
Of course all the usual suspects didn't work:
- Brightness function keys on the Apple wireless keyboard (yes that works fine on a PC too)
- Intel Display control panel didn't have any brightness settings.
- Apple Boot Camp 5.x display drivers by themselves didn't do shit if installed -- more on this below.
- etc...
Well, come to find out you need to install Apple Boot Camp 5 in order to get the display brightness controls to work--and no, you can't just install the individual drivers; it needs the bootcamp control panel, which is only installed properly if you do the full Boot Camp 5 install. As of this writing, nothing but that exists to control the Thunderbolt Display brightness on a non-apple computer.
'OK, fine... let's do the full install and hope that it doesn't overwrite my current drivers' ...
So, without any other options, I chose to go ahead and install the full Boot Camp 5....
And... an error:
'Boot Camp x64 is unsupported on this computer'
'WTF? godamn this piece of shit!'
Yeah, my history with this thing is becoming more and more apparent... So I search the internet far and wide, with very little support, and came to the (obvsious) conclusion, Apple doesn't want Windows users to be happy.
So! After about a couple of hours of trying to find a solution on the internet with no success, I end up messing around with the installation, and figure out a solution.
The fix
- Download Boot Camp 5.
- Put it somewhere like C:drivers (create the folder if needed. We want a short path, because sometimes driver installs go bad due to long path)
- Extract it with 7zip.
- Start the command prompt with Admin priviledges.
- This can be done in Windows 8 or 8.1 by right-clicking the bottom left corner of the screen, and the selecting 'Command Prompt (Admin)'
- Or you can click Run and then type in cmd followed by hitting SHIFT + CONTROL + ENTER
- In the cmd prompt browse to where you extracted Boot Camp, specifically: BootCampDriversApple
And that should do it... Reboot your PC and and you should now see a black diamond (Boot Camp) icon in the notification center, next to the time (where volume is located)
To control the brightness without an Apple keyboard, just click that Boot Camp icon, wait for it to load (it takes about 5 or more seconds for whatever reason) and click the 'Brightness' tab, and the rest is self explanatory.
If you have an apple keyboard, you can just use the F1 and F2 keys (the ones with sun icons) to control the brightness--Apple keyboards by default have the 'fn' key option enabled, opposite of regular keyboards. Meaning, if you wanted to use F1, F2, F3, etc on an Apple keyboard, you'd have to press the fn+F1, fn+F2, fn+F3, etc.
BTW, the Apple keyboard drivers, unlike the Apple Thunderbolt Display drivers, can be installed just by running:
I guess on non-Apple keyboards, you can control the brightness by hitting fn+f1 and fn+f2.
Alright... there you go. Hope this brings joy to someone's life as it has brought it to my--inspiring this drawn out, rambling, post...
View the discussion thread.
Thunderbolt 3 offers a connection with state-of-the-art speed and versatility. Delivering twice the bandwidth of Thunderbolt 2, it consolidates data transfer, video output, and charging into a single compact connector. And with the integration of USB-C, convenience is added to the speed of Thunderbolt to create a truly universal port.
Supports up to four 4K displays or up to two 6K displays1
Connect new and existing devices
Blackmagic eGPU and eGPU Pro. More power to every pixel.
Blackmagic Design has created two external GPUs (eGPUs) ideal for your Thunderbolt 3–enabled Mac.2 So you can have desktop-class graphics performance without giving up the portability of a notebook. Housed in an all-in-one aluminum enclosure, Blackmagic eGPUs are powerful yet quiet, charge your Mac using Thunderbolt 3, and have built-in I/O connections to drive both a Thunderbolt 3 display and VR accessories simultaneously. Choose the Blackmagic eGPU to accelerate pro apps and enjoy supersmooth gaming or the Blackmagic eGPU Pro for the ultimate workstation-class graphics performance for your pro app workflows and VR content creation.
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Buy Blackmagic eGPU Pro

Transferring data at speeds of up to 40Gb/s, which is two times faster than Thunderbolt 2 and eight times faster than USB 3, Thunderbolt 3 delivers the fastest connection to any dock, display, or device. You can also daisy-chain up to six Thunderbolt devices through a single port without needing a hub or a switch. So connecting a storage device to your computer, and then a display to your storage device, works as it’s meant to — with powerful throughput.8
Less than one minute to copy 25,000 photos
6K resolution. 20.4 million pixels.
One remarkable cable.
Thunderbolt 3 provides twice the display bandwidth of Thunderbolt 2, enabling your Mac to support up to four 4K displays or up to two 6K displays.1 Which means that with two Thunderbolt controllers in the 16-inch MacBook Pro, you can send graphics to dual 6K displays for the perfect high-resolution photo and video editing setup. Thunderbolt 3 connects to DisplayPort displays and monitors with a cable, while supporting HDMI and VGA displays with the use of an adapter.
With Thunderbolt 3, a single USB-C port can deliver power in both directions. So a port can charge a device or, alternatively, be charged by one. And it’s capable of delivering up to 100 watts of power, so a single cable can be used to connect to a dock or display and charge your MacBook Pro or MacBook Air simultaneously.
Up to 15W for
bus-powered devices
Up to 15W for bus-powered devices
Compatible with your existing devices.
Thunderbolt 3 with USB-C technology is a truly universal connection. With the help of an adapter or cable, you can connect just about any of your devices, including your existing Thunderbolt 2 devices.
Displays
Plug into displays using HDMI, VGA, DVI, DisplayPort, or Thunderbolt.
iOS Devices

Connect to iOS devices like iPhone and iPad.
Accessories
Use peripherals compatible with USB‑A, SD, Micro‑B, and Mini‑B.
Performance
Connect external graphics processors like the Blackmagic eGPU and external hard drives for extra storage.
The Thunderbolt 3 (USB-C) ports on MacBook Pro, MacBook Air, iMac Pro, iMac, and Mac mini are fully compatible with your existing devices and displays. Use the chart below to find out which adapter or cable you’ll need to connect to the ports on all your favorite devices.
Shop adaptersConnect to your Thunderbolt 3–enabled Mac using
Apple Thunderbolt 3 (USB-C) to Thunderbolt 2 Adapter
Mac Pro Thunderbolt Card
USB-C
USB-A
Lightning
Micro-B
Mac Thunderbolt For Pc Gaming
Mini-B
Ethernet
HDMI
Apple USB-C Digital AV Multiport Adapter or
USB-C to HDMI adapter
Mac Thunderbolt For Pc Windows 10
DisplayPort
VGA
Apple USB-C VGA Multiport Adapter or
USB-C to VGA adapter
SD
DVI
Get the accessories, cables, and adapters you need.
Equipped with Thunderbolt 3, your Mac is ready to connect to a broad ecosystem of devices.
Shop all Mac accessories