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Green rectangular circuit board with two USB-C ports, two DisplayPort inputs and a five-pin header

MSI

MSI ThunderboltM3 PCI Express to Thunderbolt expansion card

SKU CH-DQSC-9VFDS

Adds two Thunderbolt 3 ports and dual DisplayPort inputs via a PCIe 3.0 x4 slot for 4K 60 Hz video and daisy-chaining up to six devices

  • TypePCI Express to Thunderbolt
  • Thunderbolt 3Yes
  • External Ports2 x Thunderbolt 3 port (type C) 1 x 5 pin TB header 2 x Disp
  • SpecificationsChipset: Intel Thunderbolt 3 controller Interface: PCIe 3.0
  • FeaturesFull 4K Video Experience Best Single-Cable Docking Fast Stor
  • Dimensions3.35" x 4.11"
  • Connect dual 4K displays at 60 Hz with DisplayPort 1.2 support
  • Add two Thunderbolt 3 Type-C ports via PCIe 3.0 x4 interface
  • Enable daisy-chaining up to six Thunderbolt devices from one card
  • Achieve low-latency PCI Express audio recording with Intel controller
  • Includes TB header cable for motherboard DisplayPort input connection

Thunderbolt 3 expansion for PCIe systems

The MSI ThunderboltM3 add-on card brings two Thunderbolt 3 Type-C ports to a desktop through a PCIe 3.0 x4 slot. It is intended for creators and professionals who need high-speed external storage, 4K display output or external graphics on a motherboard that lacks native Thunderbolt headers. The card uses an Intel Thunderbolt 3 controller and requires a DisplayPort 1.2 signal from the graphics card or motherboard to pass video.

Bundled TB header cable enables motherboard link

A single 5-pin TB header cable is included to connect the card to a compatible motherboard header. This link is required for Thunderbolt functionality and for daisy-chaining up to six devices. The two DisplayPort inputs on the bracket accept a DP 1.2 feed from the GPU or integrated graphics, allowing the Thunderbolt ports to carry 4K video at 60 Hz or 24 Hz without additional adapters.

Compact bracket fits standard full-height slots

The card measures 3.35 inches by 4.11 inches and occupies one full-height expansion slot. Two Thunderbolt 3 Type-C ports face the rear panel alongside the two DisplayPort inputs, keeping cabling tidy at the back of the case. The 5-pin internal header sits on the PCB edge for straightforward routing to the motherboard. The PCIe 3.0 x4 interface provides the bandwidth needed for low-latency audio recording and fast external storage workflows.

商品特色

  • Connect dual 4K displays at 60 Hz with DisplayPort 1.2 support
  • Add two Thunderbolt 3 Type-C ports via PCIe 3.0 x4 interface
  • Enable daisy-chaining up to six Thunderbolt devices from one card
  • Achieve low-latency PCI Express audio recording with Intel controller
  • Includes TB header cable for motherboard DisplayPort input connection

商品規格

BrandMSI
ModelThunderboltM3
TypePCI Express to Thunderbolt
Thunderbolt 3Yes
External Ports2 x Thunderbolt 3 port (type C)
1 x 5 pin TB header
2 x DisplayPort input ports
SpecificationsChipset: Intel Thunderbolt 3 controller
Interface: PCIe 3.0 x4
Capabilities: Supports Display Port 1.2 with max. 4K x 2K @60/24 Hz
Accessories: 1 x TB header cable
FeaturesFull 4K Video Experience
Best Single-Cable Docking
Fast Storage
External Graphics
Require connections of DP input from Graphic card or Motherboard
Lowest latency for PCI Express audio recording
Daisy chaining (up to six devices)
Dimensions3.35" x 4.11"

商品問答

Will the Intel Thunderbolt 3 controller on this card need a firmware update later?

The Intel Thunderbolt 3 controller handles the protocol; firmware updates are issued by the motherboard vendor through their BIOS or utility software, not by the card itself.

Does the PCIe 3.0 x4 interface limit sustained throughput on the two Thunderbolt 3 ports?

The card connects through a PCIe 3.0 x4 link, which sets the maximum data rate available to both Thunderbolt 3 ports combined during heavy transfers.

How much heat does the card produce when both Thunderbolt 3 ports run all day?

The card is a compact 3.35" x 4.11" add-in board with no active cooling; it relies on case airflow to dissipate heat from the Intel controller during continuous operation.

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