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ASUS ThunderboltEX II DUAL PCIe expansion card with two Thunderbolt ports

ASUS

ASUS ThunderboltEX II/DUAL PCIe Card Thunderbolt 2

SKU CH-G2PN-AN80H

Adds two Thunderbolt 2 ports via PCIe 2.0 x4 for Z87/Z97 Deluxe motherboards

  • Dual Thunderbolt 2 ports expand connectivity
  • PCIe 2.0 x4 interface delivers high bandwidth
  • Certified for Z87 and Z97 Deluxe motherboards
  • Thunderbolt technology enables daisy-chain device support
  • Lightweight 1.400 lb card fits standard slots

ASUS ThunderboltEX II/DUAL PCIe Card

The ASUS ThunderboltEX II/DUAL is a PCIe 2.0 x4 expansion card that adds two Thunderbolt 2 ports to a desktop system. It is built for owners of compatible ASUS motherboards who need to connect high-speed peripherals or daisy-chain displays. The card installs into a standard PCIe slot and draws power from the motherboard.

Motherboard compatibility requirement

This card functions only with specific ASUS motherboards listed as Z87-DELUXE, Z97-DELUXE, Z97-DELUXE/USB 3.1 and Z97-DELUXE(NFC&WLC). Builders using any other motherboard, including other ASUS models, cannot use this adapter. Buyers who need Thunderbolt connectivity on a non-listed platform should look at alternative solutions.

PCIe 2.0 x4 interface

The card connects via a PCI Express 2.0 x4 slot, which determines both physical fit and available bandwidth for the two Thunderbolt 2 ports. Verify that the target motherboard has a free x4 slot wired for PCIe 2.0 before purchase.

Highlights

  • Dual Thunderbolt 2 ports expand connectivity
  • PCIe 2.0 x4 interface delivers high bandwidth
  • Certified for Z87 and Z97 Deluxe motherboards
  • Thunderbolt technology enables daisy-chain device support
  • Lightweight 1.400 lb card fits standard slots

Specifications

BrandASUS
ModelThunderboltEX II/DUAL

Questions about this item

How do I install the ThunderboltEX II/DUAL card in a Z87-DELUXE motherboard, and what step is often missed?

Insert the card into a PCIe 2.0 x4 slot on a compatible Z87 or Z97 Deluxe board, then connect the internal Thunderbolt header cable from the card to the motherboard — this header link is the step most builders forget.

What maintenance or replacement will the ThunderboltEX II/DUAL need over time?

The card itself has no moving parts or consumables; only the external Thunderbolt cables may wear and need replacement if connectors loosen or cables are damaged.

What throughput limit appears first when the ThunderboltEX II/DUAL runs sustained transfers?

The PCIe 2.0 x4 host interface caps sustained bandwidth, so long transfers will hit that bus ceiling before the dual Thunderbolt 2 ports reach their individual limits.

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