ASUS ThunderboltEX 4 Card, PCI Express, 2 x Thunderbolt 4 (USB-C), 2 x Mini DisplayPort In, TBT Header, USB 2.0 Header

Works perfectly fine with Asus ROG B650.

I built a PC last year, and used a ASSUS Motherboard that accepts ASSUS' ThunderboltEX 4 Card.It works - but is a bit Heath Robinson. In order to connect to my Video card I have to externally plumb into DP ports either from the Motherboard or in my build a Graphics card, since I have one installed.The kit comes with short DP to mini DP leads to facilitate two connections, both of which can drive five thunderbolt devices in a daisy chain.Directions are included which were easy to follow, but didn't mention connecting the power port at the top rear of the card, I connected this with a lead to my power supply anyway since it was there.Otherwise there are two internal cables; one for the Thunderbolt header on the Motherboard, and a second to an adjacent USB 2 header.The Card works.In conclusion - this was pretty much what I expected, but as ever check your motherboard supports this card.

Works well on my PC

I wanted to add Thunderbolt4 to my PC for my Dell Thunderbolt4 Dock – WD22TB4. I had previously use a USB-C that worked ok, but i wanted to switched between my PC and my laptop with ease, and when you are driving 4K screen every little Mbps helps. The addition cables you see in the pictures are of no use, unless you the the motherboard in the photo. The instruction booklet is vague (plug it in and see what happens). It comes with an install DVD of drivers, the setup is also inconclusive, is it plug and play? The metal casing (solid well built) can touch pins on the mother board, so keep the protective plastic on. It cane with 2 display port cables, but are they both to plug into your graphics card? do you have a Graphics card to 2 additional spare DP connections on there? I had to but a new graphic card, just because I wanted Thunderbolt4 on my work station as well. As soon as i plug the PCI cable into this card as the picture it wort power up. Just buying the most expensive Thunderbolt 4 card you can find, is not an indicator of quality. ASUS used to be great quality.Also due to the internal foil and cables customs will open it to make sure its not a bomb, so dont expect the box to look pretty once you have removed all that tape.

The TB_HEADER isn’t just a data cable — it provides power signals, firmware coordination, and permission negotiation to the Thunderbolt controller. It’s essential.Without the TB_HEADER connected:• The Thunderbolt controller on the card won’t be initialized• Windows won’t detect any Thunderbolt devices• Thunderbolt Control Center will be blank• No Thunderbolt hotplug or tunneling will happen at all

I have been looking to add Thunderbolt to my computer for a while now for my use case, this card has allowed me to connect a Wacom tablet to my computer (Wacom Cintiq 13 Pro) without needing to use any additional cables and all power, display and touch via one cable only!Great product.

Built a PC with Asus Z690 board for event live streaming and video production, and this card has been amazing for adding Thunderbolt 3 & 4 (and occasionally Thunderbolt 2) devices.One thing to remember, with bus powered devices like Blackmagic Design “Recorder 3G” or the “Monitor 3G” is that you can’t “hot-swap” them like you can with a Thunderbolt laptop…..you need to plug the device in before starting the computer, then it runs beautifully…..Powered (with power supply) devices can be hot-swapped just fine (Sonnet chassis etc…)Amazing, and very powerful addition to what is already a beast of a computer :)You need to follow the instructions very closely when setting up, the card itself draws extra power from a USB2 header on the motherboard (which loses one of the computer case USB2 inputs…which is fine) and you need the Thunderbolt header on the motherboard….easy peasy, and performance is nothing short of magnificent and solid.I don’t bother with the (supplied) video cables, as my NVidia card has all the outputs I need for monitors.Perfect addition to the Asus motherboard, and a trusty workhorse

I had high hopes for this product but unfortunately since buying it, it has been nothing but a major headache. I have paired it with a Asus B650E-E AM5 motherboard in hopes of taking advantage of the thunderbolt header but it has been a technical issue nightmare.Off the bat it was not clear how to set up as I had to change some BIOS settings for which I literally could not find any documentation anywhere! Then I had to scour the internet to get the Thunderbolt driver. Afterwards, I tried to connect it to my OWC thunderbolt 4 dock but I immediately ran into an issue where the dock would not be recognised on start-up or wake unless it was plugged out and plugged in again. I confirmed this was an issue with the card since the dock functions perfectly with my laptop.Then there are the issues where sometimes the card refuses to read a device connected to one of its two slots or where a Thunderbolt 4 drive would only write at a maximum of 400 MB per second where the same drive would exceed 2GB per second on my laptop.All in all, in the rare occasions when it works, it can work as expected but more often than not, this product has been a headache. I cannot recommend it.