KENSINGTON 

Kensington AC K33640NA SD4785P USB-C & USB-A Dual 4K Hybrid Docking Station

Mfg Part Number:  K33640NA  
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Price: $282.69
Quantity:
More to Come
Last Updated: Nov 14, 2025
No Sales Tax except these states
, PO and Wire.

Features

Designed for Surface

Kensington worked directly with Microsoft to provide professional-level connectivity that looks as good as it functions, so you can work like a pro. Connect with confidence for a seamless dock and charge experience.

Dual 4K Video Output (HDMI 2.0 and DP++ 1.2 @ 60Hz)

Delivers Ultra High Definition (4096 x 2160) images. Four video ports allow users the ability to select between HDMI 2.0 and DP++ 1.2 without the need for cumbersome adapters.

Up to 100W Power Delivery (PD 3.0)

For fast charging.

Six USB Ports (USB-A and USB-C)

Two-layer hub delivers speeds up to 10Gbps. Front: 1x USB-C 3.2 Gen2 up to 5V/3A and 1x USB-A 3.2 Gen2 up to 5V/2.4A; Back: 4x USB-A 3.2 Gen1 up to 5V/0.9A

Free Kensington DockWorks™ Software

Enables the best connection, performance, and security from your Kensington dock.

Three-Year Warranty

Rest assured knowing you're covered by Kensington.

Zero Footprint Mounting Option

Adjustable clamp easily attaches to a desktop edge, cubicle wall, monitor arm, or other surface for maximum mounting flexibility (K34050, sold separately).

Designed for Surface, the SD4785P USB-C & USB-A 10Gbps Dual 4K Hybrid Docking Station w/ 100W PD - DP++ & HDMI (DFS) is the ultimate hybrid docking solution for Ultra High Definition Dual 4K @ 60Hz video. Features include the ability to select between HDMI 2.0 and DP++ 1.2, with four video ports in all (no need for cumbersome adapters); six USB ports; 100W of power delivery; a 1m (3.28 feet) USB-C to USB-C cable with USB-A adapter; Thunderbolt 3 compatibility; optional Kensington DockWorks™ software, for the best connection, performance, and security from your Kensington dock; and a three-year warranty. VESA compatible.

  • Best For: USB-C or USB-A Laptops & Ultrabooks and Monitors that support up to 4K
  • Connection Technology: USB-C or USB-A (DisplayLink)
  • Power Delivery: Supports USB-C PD 3.0 (up to 100W of laptop charging)
  • Compatibility: Windows 10 or above
  • # of Monitors Supported: 2
  • Video Ports: 2 x HDMI v2.0 and 2 x DisplayPort 1.2++
  • Maximum Resolution Supported: Single or Dual Monitors: 4096 x 2160 @ 60Hz
  • Plug & Play: Plug & play installation, though installation of Kensington DockWorks™ software is recommended for the best connection, performance, and security from your Kensington docking station
  • System Requirements: DisplayLink driver installation required
  • Warranty: 3 Years
Main Specification
General Information
Manufacturer ACCO Brands Corporation
Manufacturer Part Number K33640NA
Manufacturer Website Address http://www.acco.com
Brand Name Kensington
Product Model SD4785P
Product Name SD4785P Docking Station
Product Type Docking Station
Technical Information
Connectivity Technology Wired
Device Supported Notebook/Monitor
Screen Mode Supported 4K
Supported Resolutions 4096 x 2160
Network & Communication
Ethernet Technology Gigabit Ethernet
Interfaces/Ports
Host Interface USB Type C
Host Interface USB Type A
Total Number of USB Ports 6
Number of USB Type-A Ports 5
USB Type-A Yes
USB Type-C Yes
USB Type-C Detail 1x USB-C 3.2 Gen2 (front) with 5V/3A
Network (RJ-45) Yes
Number of DisplayPorts 2
DisplayPort Yes
Headphone/Microphone Combo Port Yes
Number of HDMI Outputs 2
HDMI Yes
Power Description
Maximum Power Supply Wattage 100 W
Miscellaneous
Kensington Security Slot Yes
Country of Origin Thailand

Mounting Kits

WARNING:: The plastic used in cable products can expose you to lead and lead components, chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information go to www.P65Warnings.ca.gov
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