Skip to Content Skip to footer
Welcome to the Kensington site. We've directed you here based on your current location.

Suggestions

  • No Suggestions

Site Pages

Chevron Icon
Price  $219.99
SKU: K33806NA

Buy from the Kensington Store

Request Business Pricing

Looking to place an order of 25 units or more for your organization? Simply fill out the form below, and someone on our team will be in contact shortly.

Items marked with * are required.

Do you wish to receive related marketing communications from Kensington?

Features

Chevron Icon

Driverless USB-C Connectivity

No driver to download, install, or update. 10Gbps data transfer speed and 85W Power Delivery (PD 3.0) make this an ideal solution for all USB-C Windows laptops supporting DisplayPort Alt Mode and Power Delivery.

Universal Windows Compatibility

Connects seamlessly to any laptop running Windows 7 and above.

Numerous Video Ports

With two DisplayPort++ 1.4 ports and one HDMI 2.0b port, select the right connections and resolutions for your needs. Resolutions supported vary by the device connected (see manual or specifications table for more information).

Dynamic Video Support

Supports a minimum resolution of Single 4K @ 30Hz, Dual 1080p @ 60Hz, and Triple 1080p @ 30Hz when connected to a DP1.2/HBR2 device; and a maximum resolution of Single 5K @ 60Hz, Dual 4K @ 60Hz, and Triple 4K at 30Hz when connected to a DP1.4 HBR3 DSC device.

85W Power Delivery

Quickly and easily charge any Thunderbolt 3, Thunderbolt 4, or USB-C enabled laptop (USB-C laptops must support Power Delivery).

9-in-1 Design with Four USB-ports

The front side features one USB-C 3.2 Gen2 port (up to 5V/1.5A/10Gbps), one USB-A 3.2 Gen2 port (up to BC1.2, 5V/1.5A and Apple Charging, 5V/2.4A/10Gbps), and a combo audio port. The rear features two USB-A 3.2 Gen2 ports (up to 5V/0.9A/10Gbps), a Gigabit Ethernet port, two DP++ 1.4 ports, and one HDMI 2.0b port.

Flexible Mounting Options

Can be set up vertically or horizontally.

Free Kensington DockWorks™ Software and Three-Year Limited Warranty

Optimize your docking station’s performance with free Kensington DockWorks™ software. A three-year limited warranty means you can rest assured knowing you’re covered by Kensington.

Expand your productivity with the SD4840P USB-C 10Gbps Triple Video Driverless Docking Station. Features include two DisplayPort++ 1.4 ports, one HDMI 2.0b port; support for a minimum resolution of Single 4K @ 30Hz, Dual 1080p @ 60Hz, and Triple 1080p @ 30Hz when connected to a DP1.2/HBR2 device, and a maximum resolution of Single 5K @ 60Hz, Dual 4K @ 60Hz, and Triple 4K at 30Hz when connected to a DP1.4 HBR3 DSC device; one USB-C 3.2 Gen2 port; three USB-A 3.2 Gen2 ports; a combo audio port; a Gigabit Ethernet port; flexible mounting options; optimized performance with free Kensington DockWorks™ software; and a three-year warranty.

  • Best For: USB-C laptops and Ultrabooks that support Power Delivery, and monitors that support up to Triple 4K
  • Connection Technology: USB-C Alt Mode
  • Power Delivery: 85W
  • Compatibility: Windows 7 or above
  • # of Monitors Supported: 3
  • Video Ports: (1) HDMI 2.0b, (2) DP++ 1.4
  • Maximum Resolution Supported: Minimum resolution (DP1.2/HBR2): Single 4K @ 30Hz, Dual 1080p @ 60Hz, Triple 1080p @ 30Hz // Maximum Resolution (DP1.4/HBR3 DSC): Single 5K @ 60Hz, Dual 4K @ 60Hz, Triple 4K @ 30Hz
  • Plug and Play: Plug and play installation without the need for drivers or downloads
  • System Requirements: Host device must support Power Delivery and DisplayPort Alt mode over USB-C
  • Warranty: Three-year limited warranty
  • Optimized for your Windows 11 docking station needs, including support for Snap Layouts and Snap Groups
  • *This dock supports the Gigabit Ethernet standard which provides a maximum data rate of 1Gbps. Actual Ethernet speeds may vary depending on, but not limited to, Internet bandwidth, Ethernet cables, network switches, and the hardware and firmware performance of the host computer.
  • TAA Compliant

Product Specifications

Chevron Icon
Connection Technology:
USB-C Alt Mode
Driverless:
Yes
Additional Screen Outputs:
3
Video Ports:
DisplayPort++, HDMI
Maximum Resolution:
4K
Power Delivery :
85W
Operating System(s):
Windows
Number of USB Ports:
4
USB Fast Charging:
Yes
TAA Compliant:
Yes
Docking Station Family:
The Task Master
DockWorks:
Yes (for Windows only)
Best For:
USB-C laptops and Ultrabooks that support Power Delivery, and monitors that support up to Triple 4K
Compatibility:
Windows 7 or above
USB-A Ports:
3x: (1) USB-A 3.2 Gen2 (front) with up to 5V/2.4A fast-charging & (2) USB-A 3.2 Gen2 (back) supporting 5V/0.9A
USB-C Ports:
1 x USB-C 3.2 Gen2 (front) with 5V/1.5A charging
Audio:
1 x 3.5mm Combo Microphone & Headphone Port (front)
Data Transfer Speeds:
Supports up to 10Gbps data transfer speed
Ethernet Speed (Mbps):
10, 100, 1000 Actual Ethernet speeds may vary depending on, but not limited to, Internet bandwidth, Ethernet cables, network switches, and the hardware and firmware performance of the host computer.
Maximum Resolution Supported:
Minimum resolution (DP1.2/HBR2): Single 4K @ 30Hz, Dual 1080p @ 60Hz, Triple 1080p @ 30Hz // Maximum Resolution (DP1.4/HBR3 DSC): Single 5K @ 60Hz, Dual 4K @ 60Hz, Triple 4K @ 30Hz
Warranty:
Limited 3-year warranty
Plug & Play:
Plug & Play installation without need for drivers or downloads
Security Slot Compatibility:
Kensington Security Slot
System Requirements:
Host device must support Power Delivery and DisplayPort Alt Mode over USB-C
USB-C Power Delivery:
Supports USB-C PD 3.0 (85W of laptop charging)
Video Output:
1 x HDMI v2.0b, 2 x DisplayPort++ v1.4
4K Support:
Yes