ASUS ThunderboltEX 5 PCIe Interface Card – Thunderbolt 5, Mini DisplayPort, USB 2.0

ASUS ThunderboltEX 5 | Thunderbolt 5 Internal Expansion Card

This ASUS ThunderboltEX 5 interface cards/adapter Internal Mini DisplayPort, PCIe, USB 2.0, Thunderbolt 5 brings next‑gen connectivity to a desktop PC. It uses the Intel JHL9580 controller and a PCIe 4.0 x4 interface to deliver up to 120 Gbit/s bandwidth. You can attach high‑resolution displays and fast storage. It is designed for creators and power users who need versatile ports.

ASUS ThunderboltEX 5 interface cards/adapter Internal Mini DisplayPort, PCIe, USB 2.0, Thunderbolt 5

This card is a purpose-built internal adapter for PC builds. It adds dual Thunderbolt 5 USB‑C ports and DisplayPort 2.1 pass‑through. The PCIe 4.0 x4 host interface ensures low latency and high throughput. It supports Windows 11 x64 systems.

Dual Thunderbolt 5 ports for high‑bandwidth workflows

The card provides two Thunderbolt 5 USB‑C ports for modern peripherals. You can connect high‑speed NVMe enclosures, audio interfaces, and docks. Because bandwidth reaches 120 Gbit/s, large file transfers and 8K video pipelines are feasible. In practice, this reduces bottlenecks in demanding workflows.

DisplayPort 2.1 pass‑through for 8K visuals

With DisplayPort 2.1 support via a compatible GPU, you can drive very high resolutions. The card supports up to 7680 x 4320 pixels for crisp detail. This is useful for video editing, CAD, and colour‑critical work. However, a GPU with DisplayPort 2.1 output is required to use this feature.

Daisy‑chain up to five Thunderbolt devices

One Thunderbolt 5 port can connect to multiple devices in a chain. You can link storage, displays, and docks without extra hubs. This simplifies cable management and keeps your desk tidy. So you can expand your setup while using fewer ports on the PC.

Thunderbolt Share for dual‑PC collaboration

Thunderbolt Share enables fast screen, keyboard, mouse, and file sharing between two PCs. It uses the Thunderbolt connection for low‑latency, high‑speed transfers. This is ideal for editors, developers, and testers who switch between machines. Note that Thunderbolt Share requires compatible PCs and software.

PCIe 4.0 x4 interface for stable throughput

The card uses a PCIe 4.0 x4 slot for consistent performance. This interface matches the bandwidth needs of Thunderbolt 5. It helps maintain stable speeds during sustained transfers. Please confirm your motherboard has an available PCIe 4.0 x4 slot or better.

What is in the box

• 1 × ASUS ThunderboltEX 5 expansion card
• Internal ribbon cable(s) as fitted
• Low‑profile bracket (if included by ASUS)
• Driver and documentation (via ASUS support)

Check before you buy

• Confirm your PC case supports a full‑height or low‑profile PCIe card at 88.9 mm × 119.5 mm.
• Verify an available PCIe 4.0 x4 slot (or higher) on your motherboard.
• Ensure Windows 11 x64 is installed; other OS support is not listed here.
• Check you have a certified Thunderbolt 5 or USB4 cable (not included).
• Confirm DisplayPort 2.1 support from your GPU if you need 8K output.

Questions and answers

The short version

Buy this card if you need Thunderbolt 5 connectivity in a desktop PC for high‑speed storage, 8K video, or dual‑PC workflows. It suits creators, engineers, and power users with PCIe 4.0 motherboards. Confirm your slot, OS, and cable requirements before purchase. Covered by the applicable manufacturer warranty.