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Compact rectangular Kensington SD4839 USB-C docking station in dark finish with multiple ports visible

Kensington

Kensington SD4839 USB-C Triple Video Driverless Docking Station

SKU CH-STSM-6H778

Driverless USB-C dock delivers triple 1080p video at 60 Hz, 85 W power and 10 Gbps data through nine ports

  • Screen sizeNo Screen
  • RAM capacityDDR2
  • Included monitorNot included
  • Product typeEveryday Value
  • Product weight1
  • Triple 1080p display support for multi-monitor productivity
  • Driverless USB-C Alt Mode connection works instantly on Windows 10+
  • 85W Power Delivery charges laptops while docked
  • 10 Gbps data speed across nine built-in ports
  • Zero-footprint mount plus security lock slots save desk space

Triple 1080p USB-C Dock

The Kensington SD4839 USB-C Triple Video Driverless Docking Station connects to Windows 10 or later laptops through a single USB-C Alt Mode cable. It delivers up to 85W Power Delivery while driving three external monitors. Nine ports provide data transfer up to 10 Gbps, Ethernet and audio connections. A zero-footprint mount and security lock slots help secure the unit on any desk.

Windows USB-C Alt Mode users

This dock suits professionals who need a driverless, triple-display setup with charging from one USB-C port. It works with laptops that support USB-C Alt Mode video and Power Delivery on Windows 10 or later. Buyers whose laptops lack USB-C Alt Mode video output or cannot supply 85W charging should look at alternative solutions. Mac users and those needing higher than 1080p resolution per screen are not supported.

Triple 1080p @ 60Hz maximum resolution

The defining specification is the maximum video output of triple 1080p at 60Hz across three monitors. This resolution ceiling determines whether the dock matches your display requirements. If your workflow demands 4K or higher refresh rates on any screen, this unit will not meet that need.

How it compares

Measured against everything we stock in USB-C & Laptop Docking Stations, at today’s prices. Recalculated every night.

Price $15.99
Cheaper than about 96% of the 1,971 comparable items (median $81.99).

Specifications

Product
Brand nameKensington
Model nameSd4839P Usb-C Triple Video
Product typeEveryday Value
Memory
RAM capacityDDR2
Display
Screen sizeNo Screen
In the box
Included monitorNot included

Questions about this item

What USB-C capability must my laptop already have to run three monitors from this dock?

Your laptop must support USB-C Alt Mode with video output and Power Delivery so the dock can drive triple 1080p at 60 Hz and supply up to 85 W of charging.

Will my existing 4K displays work with this dock if I keep them?

The dock supports a maximum of triple 1080p at 60 Hz, so 4K monitors will be limited to 1080p resolution when connected through this unit.

How can I confirm the dock is delivering 85 W to my laptop after I connect it?

Check the battery icon in Windows 10 or later — it should show charging at the full rate, and the DockWorks software will report the active power level.

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