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USB-C Multiport Adapter with 4K HDMI, 10Gbps USB, SD and Gigabit Ethernet
Turn a compatible USB-C, USB4 or Thunderbolt laptop or tablet into a practical single-display workstation with fast USB expansion, wired networking, card access and pass-through charging.

Sharper single-display workspace
HDMI 2.0b supports up to 4K 60Hz with a DP 1.4 Alt Mode host, or up to 4K 30Hz with DP 1.2 Alt Mode.
Fast peripheral access
Two USB-A 10Gbps ports connect storage and accessories, with one port supporting BC 1.2 charging up to 7.5W.
Travel-ready connectivity
Gigabit Ethernet, SD/MMC card access and a 25cm attached host cable reduce the number of separate adapters to carry.
What to know
Your host USB-C port must support DisplayPort Alt Mode for HDMI video. Connect a suitable USB-C PD power adapter to the dedicated input when laptop charging is required; the adapter itself is not included.
Frequently asked questions
What maximum display resolution does the DKT31CSDHPD3 support?
It supports up to 4096 × 2160 at 60Hz when the host provides DisplayPort 1.4 Alt Mode, or up to 4K at 30Hz with DisplayPort 1.2 Alt Mode.
How many external displays can the DKT31CSDHPD3 connect?
It provides one HDMI output for one external display.
Which USB ports are available on the DKT31CSDHPD3?
It has two USB-A 3.2 Gen 2 ports with data rates up to 10Gbps; one supports BC 1.2 peripheral charging up to 7.5W.
Does the DKT31CSDHPD3 charge a connected laptop?
Yes, when a suitable USB-C Power Delivery adapter is connected to its dedicated PD input. The input accepts power adapters up to 100W, while actual host charging depends on the complete setup.
What memory cards can the DKT31CSDHPD3 read?
The slot supports SD, SDHC, SDXC and MMC cards; microSD cards can be used with a suitable SD adapter.
Does the DKT31CSDHPD3 include wired networking?
Yes. It provides Gigabit Ethernet with PXE Boot and Wake-on-LAN support.
What must the host port support for video output?
The host USB-C, USB4 or Thunderbolt port must support DisplayPort Alt Mode. A data-only USB-C port will not provide HDMI video.
Is a power adapter included with the DKT31CSDHPD3?
No. It can run from bus power, while laptop pass-through charging requires a compatible USB-C PD power adapter purchased or supplied separately.
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(DKT31CSDHPD3)
Features and highlights
- HDMI 2.0b output with HDR10 and up to 4096 × 2160 at 60Hz from a DP 1.4 Alt Mode host
- Two USB-A 3.2 Gen 2 ports supporting data rates up to 10Gbps
- SD/MMC slot supports SD, SDHC, SDXC and microSD cards with a suitable adapter
- Gigabit Ethernet with PXE Boot and Wake-on-LAN support
- Dedicated USB-C Power Delivery 3.0 input supports power adapters up to 100W
- Attached 25cm USB-C host cable with wraparound cable management
- Bus-powered operation is available when pass-through charging is not required
Specifications
| Product type | Portable USB-C multiport adapter / docking station |
|---|---|
| Host connection | Attached USB-C cable; 25cm |
| Video output | 1 × HDMI 2.0b; one external display |
| Maximum resolution | 4096 × 2160 at 60Hz with DP 1.4 Alt Mode; up to 4K 30Hz with DP 1.2 Alt Mode |
| USB expansion | 2 × USB-A, USB 3.2 Gen 2, up to 10Gbps; one BC 1.2 port up to 7.5W |
| Network | 1 × Gigabit Ethernet RJ45; PXE Boot and Wake-on-LAN |
| Memory cards | SD/MMC slot; SD, SDHC, SDXC and microSD via adapter |
| Power Delivery | USB-C PD 3.0 input, up to 100W power adapter; power adapter not included |
| Power mode | Bus powered or USB-C PD powered |
| Warranty | 3-year StarTech.com manufacturer warranty |
| SKU | DKT31CSDHPD3 |
| Barcode # | 65030880749 |
| Brand | STARTECH |
| Shipping Weight | 0.2300kg |
| Shipping Width | 0.004m |
| Shipping Height | 0.021m |
| Shipping Length | 0.015m |
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