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Gray USB-C to triple DisplayPort adapter block with three ports on one side

Corn Electronics

Corn Electronics USB C to 3 DisplayPort Splitter Gray 4K@60Hz

SKU CH-1T89-GXQ4A

Connects one USB-C port to three DisplayPort monitors, delivering 4K at 60 Hz on one or two screens and 4K at 30 Hz on the third, with extended desktop on Windows and mirror-only on macOS

  • Product typeUSB C to Displayport
  • Product colorGray
  • Details4K@60 Hz
  • Connect three monitors from one USB-C port for expanded workspace
  • Single or dual displays run at 4K 60 Hz for sharp visuals
  • Triple-display mode delivers one 4K 60 Hz and two 4K 30 Hz outputs
  • Windows supports both mirror and extended modes for flexible layouts
  • Driver-free plug-and-play setup works with DP Alt Mode 1.2 hosts

Three-Port DisplayPort Splitter

The Corn Electronics USB-C to triple DisplayPort adapter converts a single USB-C signal into three DisplayPort outputs, letting office and home-office users drive three monitors from one port. It targets professionals who need extended or mirrored desktops without installing drivers.

Resolution Limits Across Ports

When one or two ports are used alone, each can output 4K at 60 Hz. With all three ports active, one port maintains 4K at 60 Hz while the other two drop to 4K at 30 Hz, giving clear headroom for mixed refresh-rate setups.

Host Requirements and Mac Constraint

The host must support DP Alt Mode 1.2 with HBR2 and MST; on Windows this enables both mirror and extended modes, while macOS is limited to mirror mode only. Gray plastic housing and plug-and-play operation keep daily use simple.

How it compares

Measured against everything we stock in USB Graphics & Display Adapters, at today’s prices. Recalculated every night.

Price $46.99
Pricier than about 81% of the 749 comparable items (median $23.99).

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Specifications

Product
Brand nameCorn
Product lineUSB C to 3 DisplayPort Splitter
Product typeUSB C to Displayport
Product colorGray

Questions about this item

Will my existing DisplayPort monitors work with the three ports on this splitter?

Yes, the splitter converts a single USB-C signal into three DisplayPort outputs so you can connect up to three monitors at once.

How do I verify the adapter is delivering 4K at 60 Hz on the first port and 4K at 30 Hz on the other two?

Open display settings on Windows or macOS and confirm the first monitor reports 4K at 60 Hz while the other two show 4K at 30 Hz.

Does the package include the three DisplayPort cables I need, or must I buy them separately?

Only the splitter itself is included; you will need to supply three DisplayPort cables to connect your monitors.

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