

⚡ Elevate your workstation with the ultimate Thunderbolt 4 upgrade — speed, power, and future-proofed connectivity!
The ASUS ThunderboltEX 4 is a dedicated expansion card featuring Intel’s Thunderbolt 4 JHL 8540 controller, delivering dual USB Type-C ports with up to 40Gb/s bi-directional bandwidth each. It supports DisplayPort 1.4 for up to 8K resolution monitors and offers up to 100W quick charging. Compatible with Windows 10/11 and Linux, it enables daisy-chaining of multiple Thunderbolt devices, making it an essential upgrade for professionals seeking ultra-fast data transfer, high-res display support, and versatile connectivity.





| ASIN | B08ZS3D6JY |
| Best Sellers Rank | #93 in Computer Graphics Cards #261 in USB Hubs |
| Brand | ASUS |
| Card Description | Dedicated |
| Chipset Brand | Intel |
| Color | Black |
| Customer Reviews | 4.1 4.1 out of 5 stars (431) |
| Date First Available | March 24, 2021 |
| Graphics Card Ram Size | 4 GB |
| Graphics Coprocessor | Intel GPU |
| Item Dimensions LxWxH | 9.1 x 7.3 x 2.4 inches |
| Item Weight | 1.21 pounds |
| Item model number | THUNDERBOLTEX 4 |
| Manufacturer | ASUS |
| Max Screen Resolution | 7680x4320 |
| Memory Speed | 2666 MHz |
| Number of USB 2.0 Ports | 2 |
| Operating System | Windows 10 - 64 bit |
| Product Dimensions | 9.1 x 7.3 x 2.4 inches |
| Series | ThunderboltEX 4 |
J**N
A piece of Junk or it is not compatible with my Asus X670E-E Motherboard supposed to work with it
Works great if you hook it up correctly! Using an ZikeDrive Model Z666 USB4 M.2 Nmve case (they claim the fastest M.2 Drive Case): and an Fanxiang S880 4TB M.2 Nmve I get the fastest speeds of 3050.32 MB/s read, 2689.04 using Crystal Disk Mark 8 speed test. Running the Orico TCM-U4 Thunderbolt4 USB4 case with an Fanxiang S880 4TB M.2 I get the speeds: 3049.98 MB/s read, 2689.04 MB/s write. The Orico TCM-U4 is cheaper, but has a cooling problem with its top installed - but works great with thermal strip and copper heat sink and no top installed - it is reliable. But the ZikeDrive Model Z666 USB4 M.2 is slightly faster, has excellent cooling so far - better heat sink metal case with plastic over it - but the ZikeDrive is not as reliable when running thru my Plugable TB4 USB4 Hub (cant boot computer with it hooked in w/o error - sometimes errors if it is plugged in after computer booted? Seems to be working ok now.) The above ZikeDrive Model Z66 with Fanxian S880 4TB when plugged into Plugable TB4 USB4 Hub to Asus ThunderboltEx4 will get 2977.65 MB/s read, 1893.94 MB/s write for anyone who is interested. This same Fanxian S880 4TB when plugged into my Asus Hyper M.2 X16 Gen 4 Card or my Asus X670E-E motherboard M.2 PCIe 5.0 slot runs at 7271.24 MB/s read, 6187.19 MB/s write. So you can see the bottle neck is not in the M.2 I am using. It is cable of this speed, but Thunderbol 3 or 4 or USB4 is not cable of that speed. (I can't wait for Thunderbolt 5! I hope it works with my motherboard!) I am running Windows 10 & Windows 11 dual boot. Tests were done in Windows 10 on a Asus X670E-E Motherboard with AMD Ryzen 7950X3D CPU and using the GPU: MSI Gaming GeForce RTX 3060 Ti 8GB OC Edition "BGB GDDRR6X". And 96 GB DDR5 RAM (GSkill) 5400Mhz. So this is a top notch AMD computer build and is quite fast. I boot from an XPG 4TB GAMMIX S70 Blade PCIe Gen4 M.2 2280 Internal Gaming SSD Up to 7,400 MB/s in the PCIe 4.0 internal M.2 slot on the Asus Motherboard. (It has 3 PCIe 5.0 M.2 slots too reserved for future Raid-0 for video recording/editing and audio, etc.) To get this to work properly you MUST plug it into the proper PCIe X4 slot, plug the included cable from the USB 2.0 port on it into the USB 2.0 header on your motherboard, and plug the included cable from Thunderbolt Header on it into the Thunderbolt Header on your motherboard. If you don't hook it up to the USB 2.0, USB Devices can work on it, but no Thunderbolt. I have an Orico TCM-U4 Thunderbolt4 USB4 case with an Fanxiang S880 4TB M.2 in it, it was running at 1063.91 MB/s read, 1057 MB/s write, when the ThunderboltEx4 was not hooked up from its USB 2.0 to the USB 2.0 header on the motherboard. But when the ThunboltEx4 was hooked up correctly (USB 2.0 on it to USB 2.0 header on motherboard) then it was running at 3049.98 MB/s read, 2689.04 MB/s write, using the Fanxiang S880 4TB M.2.
H**K
Works easily in Ubuntu 24.04
I was hesitant to get one of these because of some of the reviews here and elsewhere. But, I am happy to report it works perfectly in Ubuntu 24.04. Driver support is built into the kernel so you can ignore the driver CD. An empty PCI slot, hook up the thunderbolt, USB, and power connectors, enable it in the bios, and it's ready to go. I'm successfully using it with an eGPU. I haven't tested speeds so I can't comment on that aspect from other reviewers.
J**S
Works great, if you follow (non-existent) directions
Pros: Has given my AMD B550 Motherboard fast and reliable Thunderbolt connectivity. Have zero complaints about it once I got it working. It actually has been more reliable with my Thunderbolt 4 hub than a another PC with onboard support for Thunderbolt 4. I'm using dual DisplayPort pass-through to monitors running at 4K, with no issues. I have a bunch of USB devices connected through the hub including a 4K webcam, which also work with no issues. Everything connects and is functional from either cold boots or sleep and I've not had any issues with devices randomly disconnecting. Contrary to other reviews, once this is set up correctly, I get the BIOS splash screen on monitors connected via a Thunderbolt hub and I'm able to use a keyboard/mouse connected through the hub before the OS boots. Cons: The documentation provided with the card is woefully incomplete, so I'm here to get you up to speed. Installation: The card requires an available PCI 4x slot, a dedicated Thunderbolt header on your motherboard, an available USB 2.0 header on your motherboard, and a six-pin PCIe connector from your power supply. Installing the card is as easy as connecting all of those things. Simply installing the card isn't enough, and this is where the documentation really fails. After installation, you will need to enter the PC's BIOS and enable Thunderbolt support. It is not enabled by default! This varies by motherboard, so it will involve searching all of the "advanced" settings. After you find the right settings, enable them, save settings, reboot. At that Windows should recognize the card and you can install the driver. One reboot later and Thunderbolt should be fully functional. Which Thunderbolt port to use: The Thunderbolt ports on the card were clearly designed with daisy-chaining in mind and it impacts their functionality. Port 1 (the closest to the edge of the card) seems to be intended as the "Thunderbolt In" port. I wasn't able to get my hub to work with this port. Port 2 seems to be the "Thunderbolt Out" port. My hub works without issue when connected to the second port. Port 1 is powered, so it seems like you'd want to connect it to peripherals anyway, but again it's not explained in the documentation. Other thoughts: My only other (minor) compliant is that the DisplayPort-in ports are DP1.4 and only support a single monitor per connection. There's two DP-ins, so it's not a big deal as long as you have two available DP connectors on your GPU.
J**N
Works as expected with Windows 10 and OWC TB Pro Dock
After installing the card, connecting the TB/USB headers (opted to skip the PCIe as I don't need the PD functionality), and enabling TB4/USB4 (under AMD BPS for X670E BIOS), and downloading the TB manager from Asus' site it works exactly as expected. I can now swap my mouse/keyboard, 10Gig ethernet, and monitor (3440x1440p 175hz HDR) between my windows and macs with a single cable. The fit on the thunderbolt ports seems to be very loose, bumping the cable at all seems to result in a disconnect. There are also some quirks with Windows, sometimes it won't display HDR at 175hz at my native res (it will always do so if I drop to 144hz), and it doesn't seem to want to reconnect to the OWC Thunderbolt Pro Dock if I unplug and reseat the cable without powering the Windows machine off. (This may have been a Windows 10 issue, it now lets me disconnect/reconnect without power cycling just fine on Windows 11) At the end of the day, this has greatly simplified my current desk setup and I'll definitely be buying a motherboard with included Thunderbolt next time I'm in the market for an upgrade.
J**S
Al inicio me dio problemas, no reconocía lo que conectaba. Marcaba mensaje de que no estaba activado el tunel de pcie o algo parecido. Le actualicé el firmware, actualicé el bios de mi placa (ROG STRIX Z690-E GAMING WIFI), reinstalé windows 11 y nada. Luego de tanto buscar y toparme con varios usuarios con problemas similares, vi que uno dijo que lo cambió de slot y funcionó. Así que lo cambié a otro slot y ya funciona bien. Lo tenía conectado en el último slot, lo pasé al penúltimo y funcionó. Ahora trabaja de maravilla. Tengo un hub que tiene dos M.2 dentro (uno SATA y otro PCIe) y logra transferencias de 500 - 550 MB/s para el SATA y de unos 1.5 - 2.0 GB/s para el PCIe.
A**R
Great for a thunderbolt studio setup. Be sure to check your motherboard manual to see if this will actually work (some only support the USB-4 version which is not this product). Tested with a UAD x16 & AVID MTRX
お**す
USB2 のピンヘッダーを使用するので、マザーによってはピンヘッダーが枯渇します。 私の場合はピンヘッダーを増設して切り抜けました。
A**A
I use a Mac Pro for work but also game on PC so this allowed me to use all my peripherals like mouse, keyboard, monitor usb hub, headphone stand and sound card all be swapped between the two machines with a single cable. Before this I was using a usb 10GB hub which didn’t have enough bandwidth for all devices so was unplugging 7 cables from pc to Mac whenever I wanted to swap systems. I can even use my 5K Thunderbolt Display on my PC with this add in card. Just be sure to get the right version for your chipset. Mine is Z590 but I believe earlier chipsets use the thunderboltex tr but don’t quote me.
H**N
Ürün yeni elime ulaştı. Asus Rıg Strix x670e-e gaming wifi anakart ve Amd Ryzen 7950x işlemciden oluşan sistemime Thunderbolt 4, usb4.0 ve 100w sarj özelliğini kazandırmış oldum. Yakın zamanda, Apple thunderbolt monitör kullanıp kullanamayacağım konusunda test yapacağım
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