End Of Life
Scan code: LN74154 Manufacturer code: 90MC03V0-M0EAY0

Asus Thunderbolt EX 3 PCI Express 3.0 x4 Card

ASUS Thunderbolt3 EX 3 Card, integrates Thunderbolt3, reversible USB 3.1 Type-C and DisplayPort 1.2, PCI Express 3.0 x4

Thumbnail 1 : Asus Thunderbolt EX 3 PCI Express 3.0 x4 Card Thumbnail 2 : Asus Thunderbolt EX 3 PCI Express 3.0 x4 Card Thumbnail 3 : Asus Thunderbolt EX 3 PCI Express 3.0 x4 Card Thumbnail 4 : Asus Thunderbolt EX 3 PCI Express 3.0 x4 Card
Scan code: LN74154 Manufacturer code: 90MC03V0-M0EAY0
End Of Life This product is no longer available to purchase
Delivery Options
  • By DPD to your specified address. | £5.48 Receive SMS with one-hour delivery window Weekend, timed and European delivery options are available at checkout

    Have your parcel delivered by DPD to your specified address. Receive SMS with one-hour delivery window

    Weekend, timed and European delivery options are available at checkout
  • Collect instore Collect from our Bolton store, BL6 6PE | Free

    Order online, collect from our Bolton store (25-28 Enterprise Park, Middlebrook, Horwich, Bolton, BL6 6PE)

  • UPS and DPD Pickup Pickup from local convenience store | £4.79

    Collect your parcel from your newsagents, petrol stations and convenience stores

  • SCANPROTECT Protect against installation damage for 28 days. More info

    ScanProtect is an enhanced warranty specifically designed and offered by Scan to reduce the risk of any mishap or damage to components during installation.

    Our aim with ScanProtect is to encourage our customers to upgrade or build their own PC confidently. For a small additional fee our customers are provided with complete peace of mind.

  • 48HR REPLACEMENT If you need to return this item, your replacement will be dispatched within 2 working days of your product arriving back at Scan. More info
Suggested alternatives
Product Overview

Thunderbolt 3, USB 3.1, and up to 36W Charging

Thunderbolt™ 3 means faster, bigger and more, all through a single cable with a sleek, any-way-up connector — and ASUS ThunderboltEX 3 is the quick-to-fit expansion card that enables you to upgrade today!

Experience Blistering Thunderbolt 3 Speeds and Any-Way-up Connectivity

• Breathtaking 40Gbps for faster transfers.
• A single port integrating Thunderbolt™ 3, reversible USB 3.1 Type-C and DisplayPort 1.2.
• Supports the USB Power Delivery specification for fast, high-power charging of up to 36W.


At a breathtaking 40Gbps you'll experience faster transfers, with four times (4X) the data speeds of any other cable and twice (2X) the video bandwidth.

More Connectivity

By integrating reversible USB 3.1 Type-C and DisplayPort 1.2, the ThunderboltEX 3 gears you up for compatibility with the latest high-speed devices, from super-fast external drives to 4K UHD displays. ThunderboltEX 3 supports the USB Power Delivery specification for fast, high-power charging of up to 36W, and you can even daisy-chain up to six devices from a single port — and our card even includes an additional USB 3.1 Type-A connector for total convenience and compatibility!

10-Gigabit Networking

When you fit ThunderboltEX 3 you'll also enjoy peer-to-peer networking at screaming 10Gbps speeds, enabling you to transfer files in the blink of an eye, perform easy PC migrations, or set up small workgroups with shared storage!

Please note this is only compatiable with 1 x 9 pin TB header if you have 10th Gen Intel 400 series or AMD B550 and later models these require with 14-1 pin Thunderbolt header please use Scan code: LN108072


1 x Thunderbolt™ 3 port (Type-C)
- up to 40Gbps for Thunderbolt devices
- up to 10Gbps for USB 3.1 devices
- up to 12V/3A, 36W charging support
1 x USB 3.1 port (Type-A, support up to 10Gbps)
1 x 9 pin TB header

Please note this is only compatiable with 1 x 9 pin TB header if you have 10th Gen Intel 400 series or AMD B550 and later models these require with 14-1 pin Thunderbolt header please use Scan code: LN108072

Compatible Models:
WS C422 SAGE/10G
WS X299 SAGE/10G
TUF Z270 Mark 1
X99-PRO/USB 3.1
X99-A/USB 3.1
X99-A II
X99-E WS/USB3.1*
X99-E WS*

Please note your statutory rights are not affected.

For further information regarding Scan's warranty procedure please see our terms and conditions

24 months
DOA Period:
1 days
Manufacturer Contact Details
01442 265548
ASUS Thunderbolt3 EX 3 Card, integrates Thunderbolt3, reversible USB 3.1 Type-C and DisplayPort 1.2, PCI Express 3.0 x4 is rated 2.5 out of 5 by 8.
Rated 1 out of 5 by from Have had two of these fail now. Worked for a bit then suddenly - nope!! I think there is a design fault with the little jumper cable that comes with it. Come on ASUS, sort it out!! The net is full of people with dodgy ones. Not just me.
Date published: 2020-07-21
Rated 1 out of 5 by from The worst of the worst I have burned my way through three of these awful cards, and have actually wasted money buying two of them so I'd have a spare while the other was sent off for yet another RMA as they are so unreliable. That was a mistake - having yet again sent a broken card back to Scan for replacement, I used the other one. But when they sent me a new card (so I now had two working ones, follow along at the back there) I just left that in its box as the other was in the computer and working. When that expired nine months later it was out of warranty so had to be binned. So I put the RMA'd card in, and that only lasted four months, so by now also out of warranty. If you are silly enough to buy one of these and manage to jump through the hoops of BIOS configuration to get it working, I have two pieces of advice: 1) after a few weeks or months of use the card will appear to stop working - it has a kind of pre-total fail stage. At this point you can keep it going for many more months by simply turning off the mains to the PC for a few minutes (PSU switch not just Windows shutdown). This appears to somehow reset the card and it will spring back to life on next boot. You will need to do this every time you reboot or shutdown. 2) better still, throw it away and get an Alpine Ridge card off ebay (they are now out of manufacture but they're still available from some countries). Ideally Scan would stop selling these, they must know from all the RMAs how utterly useless they are.
Date published: 2020-07-11
Rated 1 out of 5 by from Shoddy product and support from ASUS I ordered this card for my 3xs system (which has a supposedly compatible X99-A/USB 3.1 motherboard) as I wanted to connect my system to a new Thunderbolt 3 NAS drive. Unfortunately the installation did not work as advertised and the card wouldn't connect to my Thunderbolt 3 device or even show up in my device manager. After several hours of updating software/drivers and adjusting the settings in the BIOS I was still no closer to a solution. The ASUS support was very unhelpful. As I write this they haven't replied to my support ticket in 6 days. I attempted to update the BIOS on my motherboard (which was recommended by some people online) however this made matters worse and I had to leave the PC into a repair shop. I'm now down 150eur for repairs and have just found out the motherboard is now dead as a result of the BIOS update which will be another 600eur or more to replace. I recommend anyone considering purchasing this card to first research potential installation issues for your system as it seems a lot of people have experienced similar problems to me.
Date published: 2019-10-29
Rated 2 out of 5 by from temperamental, extremely difficult to setup I was about to write a scathing review of this product. I've had it for a good few months. Initial outlook was good. For context, I run a dual monitor setup with a number of peripherals, which I previous to this device switched between via a KVM. The KVM required a total of 9 displayport cables, not to mention USB cables etc just to function because it had to switch between my desktop and laptop. I couldn't use a single displayport cable because macos still doesn't support DisplayPort MST. Then comes along this device. I already have a Thunderbolt 3 to connect my mac to, so I get to remove all the cable mess of the KVM and just connect my desktop and my laptop via the same single cable, switching between them when I need to. The device comes with virtually no instructions, and requires complex BIOS setup to work. Initially, I plugged it in, set thunderbolt in advanced settings to 'on' and it worked... kinda. Some devices weren't working or being detected, but when I set 'Security Mode' to 'No Security' it started working. Then, sometime later it just stopped working. I spent days on end trying to work out why. Debugging a device like this is absolutely no fun. Because the entire point is that you attach your peripherals through it, if it doesn't work, you don't have a mouse or keyboard, or monitors. I got it to work for a little bit by completely re-flashing my bios, but just as soon as I restarted it stopped working again. Nothing I could do would make it come back. I went through and toggled every setting in turn and kept restarting to see if anything would fix it, and it continued not to work. Then, just as I wrote this review, looking for a different forum post that gave me the advice to give up on it I found a single person posting something on a forum and answering their own question about how to make it work. It said simply 'only works in PCIE slot 1-2'. So I tried that. I went into my BIOS, set 'AIC Enabled' to true on a hunch and two dropdowns appeared for which motherboard bridge it was on. I switched it to CPU0, and that changed the second dropdown to allow me to select PCIEX16_2. I restarted and now it appears to work. Will it continue to work? Only time will tell. But if you at all have the chance, I strongly recommend getting a motherboard with Thunderbolt 3 support instead. You'll save a lot of time and stress.
Date published: 2019-04-17
Rated 4 out of 5 by from Great product but needs more documentation Installation on a Maximus VIII Ranger was easy. Initially the PC didn't recognize the card and it had no functionality. I went into the BIOS which Windows 10 keeps carefully hidden, and found that Thunderbolt was disabled by default, and after enabling it the card works. No mention of this in the instructions! Also it is not clear if I actually need the display port connection. My graphics card doesn't have one, so I used the on board display port connection. I intend using the card for rapid backups of large files, e.g photo collections, so if I don't need the display port connection that too could be made clear in the instructions. I tried registering the product on the ASUS website and haven't yet found the catagory to which it belongs on their drop down menus. So. great product but better documentation would be useful.
Date published: 2017-08-31
Rated 5 out of 5 by from Excellent. In my quest for ever diminishing input and output latency in music studio recording and the holy grail of real-time direct monitoring from the digital audio workstation software I recently built an Asus Z290/Intel Kabylake.... PC running the latest version of Cubase; 9. The interface consisted of a Focusrite Clarett 8 Pre thunderbolt interface. The ASUS thunderbolt card was easy to install and worked really well with the Clarett 8 pre. Focusrite are still hard at work creating the Thunderbolt 3 drivers for W10 so the fact that the card was backwards compatible with Thunderbolt 2 (and1) was crucial. My studio is now effectively latency free and my quest is over. When the W10 Thunderbolt 3 drivers from Focusrite become available I'm worried that if the latency goes down even more (which it definitely will) I'll start hearing the notes before I've played them!!
Date published: 2017-02-21
Rated 5 out of 5 by from Thunderbolt on Windows 10 Can`t fault this card worked fisrt time installed on Asus Rampage V Extreme connected to Motu 1248 Audio Interface. Did have to use Startech Thunderbolt 3 to Thunderbolt adapter but then the 1248 is Thunderblot 2 so not surprising. The speed increase is superb. Using usb I did get some latency problems but they have all gone now Using DP 9.0 as my Daw. Brilliant piece of kit
Date published: 2017-01-06
Rated 1 out of 5 by from Does Not Work! I purchased this item and after installing the card per the instructions have yet to get it working. I have all the prerequisite hardware (X-99 deluxe) but it seems that even Asus's own tech team dont know how to get the card working. very dissapointed with the overall purchase. This is not the fault of Scan.co.uk, but that of ASUS and their terrible customer support team.
Date published: 2016-08-25
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Would this be compatible with an Apple Thunderbolt display?

Asked by: luna
I had two Apple LED displays and wanted to use one of them with a new PC I was building. I used an ASUS motherboard with the TBheader connection and this ASUS card, worked great. Very impressed
Answered by: Peterle
Date published: 2018-11-11

would this work with asus sabertooth 990fx r2.0

would this work with asus sabertooth 990fx r2.0 rev2
Asked by: Major
Hello, This is not listed as compatible with the Sabertooth 990fx motherboard. Regards.
Answered by: JackB
Date published: 2018-04-24

Could this work with an Asus Z370-G?

Hi, just wondering if I could use this to add Thunderbolt 3 / USB Type-C to my Asus Z370-G?
Asked by: humedini
Hello, This unit is not specified to be compatible with that board. Regards,
Answered by: JackB
Date published: 2018-12-19

Compatible with Asus Zenith x399 board

Asked by: 3dwannab
Hello, This would not be compatible with the Zenith X399 as the board requires an internal Thunderbolt header to support this device. Regards,
Answered by: JackB
Date published: 2017-10-03

Power needs

Does this card just draw it's power from the Pci slot or does it need to connect to the motherboard
Asked by: RadleyMusic
Hi, this will not need to connect to your PSU for power but it will need to connect to your motherboard to power the thunderbolt ports (cable included) to make sure they are able to be used . Kind regards,
Answered by: LukeW
Date published: 2019-04-03
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Asus Thunderbolt EX 3 PCI Express 3.0 x4 Card
Asus Thunderbolt EX 3 PCI Express 3.0 x4 Card