ASUS ThunderboltEX 4 Dual Thunderbolt 4 USB-C expansion card
Key features
- Intel®-certified Thunderbolt™ 4 add-on card
- 40 Gbps bi-directional bandwidth for superfast data transfers and video output
- Dual Thunderbolt™ 4 ports (USB-C®), with support for up to five Thunderbolt devices in a daisy chain
- DisplayPort™ 1.4 for 8K Ultra HD support
Enable blisteringly fast speeds and any-way-up connectivity
ASUS ThunderboltEX 4 is a Thunderbolt™ 4 add-on card that offers 40 Gbps bi-directional bandwidth, USB4™ device compatibility, and DisplayPort™ 1.4. It supports up to five Thunderbolt devices in a daisy chain and enables up to 100-watt USB-C® charging for laptops.
- Thunderbolt™ (USB-C®) port Up to 100-watt* quick charging
- Thunderbolt™ (USB-C®) port Up to 27‑watt quick charge
- Mini DisplayPort™ input
- USB4: Specification compliant
- 40 Gbps: Bi‑directional bandwidth
- Up to100W: Quick‑charge support
Daisy‑chain
Up to five Thunderbolt devices per port 
*Actual charging performance may vary in real world conditions. Daisy-Chain up to 5 Thunderbolt devices per port, 3 devices + 2 Thunderbolt monitors
or Daisy-Chain up to 5 Thunderbolt devices per port 4 devices + 1 Thunderbolt monitor
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