---
product_id: 49413640
title: "ASUS Thunderbolt EX 3 Expansion Card with Intel Thunderbolt 3 Controller - Black"
brand: "asus"
price: "฿475"
currency: THB
in_stock: false
reviews_count: 8
url: https://www.desertcart.co.th/products/49413640-asus-thunderbolt-ex-3-expansion-card-with-intel-thunderbolt-3
store_origin: TH
region: Thailand
---

# 40Gbps ultra-fast transfer Reversible USB-C + DisplayPort 1.2 36W USB Power Delivery charging ASUS Thunderbolt EX 3 Expansion Card with Intel Thunderbolt 3 Controller - Black

**Brand:** asus
**Price:** ฿475
**Availability:** ❌ Out of Stock

## Summary

> ⚡ Elevate your workstation with the speed and power of Thunderbolt 3!

## Quick Answers

- **What is this?** ASUS Thunderbolt EX 3 Expansion Card with Intel Thunderbolt 3 Controller - Black by asus
- **How much does it cost?** ฿475 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.co.th](https://www.desertcart.co.th/products/49413640-asus-thunderbolt-ex-3-expansion-card-with-intel-thunderbolt-3)

## Best For

- asus enthusiasts

## Why This Product

- Trusted asus brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Power Up Fast:** Charge your devices up to 36W with USB Power Delivery—cut downtime, boost productivity.
- • **Blazing 40Gbps Speed:** Transfer massive files in seconds—stay ahead in the fast lane.
- • **Plug & Play Compatibility:** Works flawlessly with top-tier ASUS Z170 and X99 motherboards—future-proof your setup.
- • **Compact & Lightweight Design:** At just 200g and 10x8.5x4 cm, it fits perfectly without cluttering your workspace.
- • **All-in-One Thunderbolt 3 Port:** Seamlessly connect USB-C, DisplayPort, and Thunderbolt devices with one sleek port.

## Overview

The ASUS Thunderbolt EX 3 Expansion Card integrates Intel's Thunderbolt 3 controller to deliver ultra-fast 40Gbps data transfer speeds through a single reversible USB 3.1 Type-C port that also supports DisplayPort 1.2. It supports USB Power Delivery for up to 36W fast charging and is compatible with a wide range of ASUS Z170 and X99 series motherboards, making it an essential upgrade for professionals seeking cutting-edge connectivity and power efficiency.

## Description

Product Description               Experience blistering Thunderbolt 3 speeds and any-way-up connectivity. Breath-taking 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. Operating system Windows 10 Windows 8.1 64-bit Windows 8 64-bit Windows 7 32-bit Windows 7 64-bit                  System Requirements               Compatible with Z170-PREMIUM Z170-DELUXE Z170-PRO Z170-A Z170-AR SABERTOOTH Z170 MARK 1 SABERTOOTH Z170 S MAXIMUS VIII EXTREME MAXIMUS VIII HERO MAXIMUS VIII RANGER X99-DELUXE II X99-DELUXE X99-DELUXE/U3.1 X99-PRO/USB 3.1 X99-PRO X99-A/USB 3.1 X99-A X99-A II X99-E SABERTOOTH X99 RAMPAGE V EXTREME/U3.1 RAMPAGE V EXTREME X99-E WS/USB3.1* X99-E WS*

## Features

- 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

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | ASUS |
| Product Dimensions | 10 x 8.5 x 4 cm; 200 g |
| Batteries | 1 A batteries required. |
| Item model number | B99W445 |
| Manufacturer | ASUS |
| Series | THUNDERBOLTEX 3 |
| Colour | Black |
| Processor Count | 1 |
| Graphics Chipset Brand | Intel |
| Graphics Card Interface | PCI Express |
| Wattage | 50 |
| Operating System | 32-bit,64-bit,Windows |
| Are Batteries Included | No |
| Lithium Battery Energy Content | 2.6 British Thermal Units (BTUs) |
| Lithium Battery Packaging | Batteries contained in equipment |
| Lithium Battery Weight | 0.5 Milligrams |
| Number Of Lithium Ion Cells | 7 |
| Number of Lithium Metal Cells | 7 |
| Item Weight | 200 g |
| Guaranteed software updates until | unknown |

## Product Details

- **Brand:** ASUS
- **Hardware interface:** 1/4-inch Audio
- **Style:** Modern
- **Item weight:** 200 Grams
- **Compatible devices:** Personal Computer

## Images

![ASUS Thunderbolt EX 3 Expansion Card with Intel Thunderbolt 3 Controller - Black - Image 1](https://m.media-amazon.com/images/I/61oYp6rcEOL.jpg)
![ASUS Thunderbolt EX 3 Expansion Card with Intel Thunderbolt 3 Controller - Black - Image 2](https://m.media-amazon.com/images/I/71Y9vB-vslL.jpg)
![ASUS Thunderbolt EX 3 Expansion Card with Intel Thunderbolt 3 Controller - Black - Image 3](https://m.media-amazon.com/images/I/41PtyzybWwL.jpg)
![ASUS Thunderbolt EX 3 Expansion Card with Intel Thunderbolt 3 Controller - Black - Image 4](https://m.media-amazon.com/images/I/61kdq2EuaYL.jpg)

## Questions & Answers

**Q: Will this work with a asus prime b450-plus?**
A: I dont think so as you need the Thunderbolt header aa part of the original motherboard architecture

**Q: Will this work with asus z170-a motherboard? i have an apollo twin soundcard and i want to connect it to my windows pc.**
A: don't know the answer. I use mine on a TUF X299 mother board this has an on board header used to connect to the thunderbolt expansion card.

**Q: Has anybody got this working with an asus prime x299-a motherboard?**
A: I've got it working on a Z270-A board with no issues. 

Your Z299 board should be fine, as it has that thunderbolt header. The header is the important part, not so much the chipset. All you need do is insert the card, ensure Thunderbolt is enabled in the BIOS, and install the drives from Intel, then you're good to go.

**Q: will this work on an H81 motherboard?**
A: I've checked the ASUS H81 motherboard, and the answer is NO. there is a connection that comes with the thunderbolt 3 card, a short piece of wire, which connects with the Mo/Bo. You require a Mo/Bo that has a TB3 header!!!
yours truly Colin.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Simple install and works as expected
*by M***L on 15 March 2020*

Worked fine in my Asus Rampage v edition 10. I bought this purposely for a hackintosh High Sierra build to run a Presonus Quantum 2 interface and couldnt be happier! Although I wouldnt recommend that to a novice but in windows it worked with no hassle having installed the drivers and firmware update.

### ⭐ Difficult set-up and ultimately didn't work
*by B***. on 18 March 2020*

I should have listened to the reviews. I've got no problem with installing new hardware, but this was cumbersome and fraught with problems. The PC needs to be rebooted several times before it shows in the BIOS, where you need to enable it and tell it which slot the card is in. After this it wasn't appearing in Windows despite downloading the latest drivers. I found that it only worked in one slot (ASUS X99-DELUXE) despite all the specs suggesting otherwise. When I did finally get the ports to show up in Windows, they had power only. Plugging any device in just didn't show, even on the USB with devices that worked in other ports). This was an expensive mistake and a waste of two days. Do yourself a favour and by a different brand - a quick Google will show you that many people have similar issues that they're unable to resolve or only solve problems intermittently.

### ⭐ Caused Windows 10 to crash when plugging in USB-C eGPU Graphics card
*by K***N on 23 February 2019*

Allegedly this Asus device was compatible with my ASUS motherboard - Asus told me what to buy!!!Maybe, but certainly Windows wouldn't support it. As soon as I plugged in my external GPU Windows 10 gave the blue screen of death.Spend about 6 hours reinstalling and trying to get the vendor to understand the problem, sent them the Windows dump files which they seemed incapable unzipping or giving me any useful support. So ended up slinging it stripping the graphics card from the eGPU installing it direct into the PC.

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*Product available on Desertcart Thailand*
*Store origin: TH*
*Last updated: 2026-02-26*