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Kensington K33603NA Docking Stations Kensington Sd4781p Eq Usb-c And Usb-a Dual 4k Docking Station With 100w Power Delivery - For Notebook, 085896336037

Part Number: K33603NA
Condition: New
Availability: 1639  
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Product Specifications



Kensington SD4781P EQ USB-C & USB-A Dual 4K Docking Station with 100W Power Delivery - for Notebook, Monitor, MacBook - Charging Capability - USB Type C, USB Type A - 2 Displays Supported - 4K, 4K @ 60Hz, 4K UHD - 3840 x 2160, 4096 x 2160 - 6 x USB P (K33603NA)

SD4781P EQ USB-C & USB-A DUAL 4K DOCKING STATION WITH 100W POWER DELIVERY

Manufacturer Part Number: K33603NA

The SD4781P EQ USB-C & USB-A Dual 4K Docking Station is a versatile and sustainable dock that supports USB-C and legacy USB-A* laptops with the all-in-one benefits of video, data, and power. Delivering support for up to 2 external Ultra HD monitors (4K @ 60Hz), and the ability to select between HDMI 2.0 and DP++ 1.2 connections (4 video ports for up to 2 external displays), the SD4781P eliminates the need for cumbersome adapters. It provides up to 100W of power delivery to the laptop and dock and delivers data transfer speeds up to 10Gbps via 6 USB ports. Additional features include host cable with secure screw lock connection, Gigabit Ethernet port, combo audio jack, mountable design, sustainable components, optional Kensington DockWorks software, and three-year limited warranty. *USB-A devices require optional power splitter (K38310NA) for Power Delivery.



CPN:SD4781P EQ USB-C & USB-A DUAL 4K DOCKING STATION WITH 100W POWER DELIVERY
MANUFACTURER NAME: Kensington
MANUFACTURER PART NUMBER: K33603NA
UPC EAN CODE: 085896336037
LANGUAGE: EN
MARKET:US

General Information:

Features | Universal Compatibility

Supports USB-C® and legacy USB-A laptops running Windows 7 or above, macOS 10.14 or above, Chrome OS 44 or above.

Sustainability Focused

The plastic in this product contains up to 50% post-consumer recycled (PCR) content.

Dual 4K Video via HDMI® 2.0 and DP++ 1.2

Four video ports allow you to select between HDMI® 2.0 and DP++ 1.2 without the need for cumbersome adapters. Also supports M1/M2/M3 MacBook with dual displays.

Up to 100W Power Delivery

Delivers power to laptop, docking station, and connected accessories. Supports up to 100W for USB-C® Alt Mode laptops. USB-A laptops require optional Power Splitter (K38310NA) for Power Delivery.

Multiple Ports

Delivers speeds up to 10Gbps via 1x USB-C® port and 5x USB-A ports. Front: 1x USB-C® 3.2 Gen2 up to 5V/3A or up to 9V/2A for supported devices, and 1x USB-A 3.2 Gen2 up to 5V/1.5A, supports BC 1.2, up to 5V/2.4A for Apple devices; Back: 4x USB-A 3.2 Gen1 up to 5V/0.9A. Also includes a Gigabit Ethernet port and audio combo jack.

Secure Screw Lock Connection

Host cable is equipped with secure screw lock connector for a consistent and reliable connection between the docking station and the laptop.

Zero-Footprint Mounting Option and Security Cable Lock Slots

Maximize desktop space by mounting your docking station out of the way. Mounting bracket sold separately (K34050WW). Protect your investment with a Kensington cable lock (K65020WW or K65021WW), sold separately.

Free Kensington DockWorks™ Software and 3-Year Limited Warranty

Free DockWorks™ software delivers the best connection, performance, and security from your Kensington dock. Enjoy peace of mind knowing your covered by Kensington with a professional warranty.

The SD4781P EQ USB-C® & USB-A Dual 4K Docking Station is a versatile and sustainable dock that supports USB-C® and legacy USB-A laptops with the all-in-one benefits of video, data, and power. Delivering support for up to 2 external Ultra HD monitors (4K @ 60Hz), and the ability to select between HDMI® 2.0 and DP++ 1.2 connections (4 video ports for up to 2 external displays), the SD4781P eliminates the need for cumbersome adapters. It provides up to 100W of power delivery to the laptop and dock and delivers data transfer speeds up to 10Gbps via 6 USB ports. Additional features include host cable with secure screw lock connection, Gigabit Ethernet port, combo audio jack, mountable design, sustainable components, optional Kensington DockWorks™ software, and three-year limited warranty.

  • Supports USB-C® and legacy USB-A laptops running Windows 7 or above, macOS 10.14 or above, Chrome OS 44 or above.
  • The plastic in this product contains up to 50% post-consumer recycled (PCR) content.
  • Ultra HD on up to 2 external monitors. Also supports M1/M2/M3 MacBook with dual displays.
  • Delivers up to 100W of Power Delivery to compatible laptops while powering connected accessories. USB-A laptops require optional power splitter (K38310NA) for Power Delivery.

ManufacturerKensington Computer Products Group
Manufacturer Part NumberK33603NA
Manufacturer Website Addresshttp://www.kensington.com
Brand NameKensington
Product ModelSD4781P
Product NameSD4781P EQ USB-C & USB-A Dual 4K Docking Station with 100W Power Delivery
Product TypeDocking Station
  Product UPC085896336037
Technical Information:
Connectivity TechnologyWired
Charging CapabilityYes
Number of Displays Supported2
Supported Resolutions3840 x 2160
4096 x 2160
Screen Mode Supported4K
4K @ 60Hz
4K UHD
Device SupportedNotebook
Monitor
MacBook
Network & Communication:
Ethernet TechnologyGigabit Ethernet
Interfaces/Ports:
Host InterfaceUSB Type C
USB Type A
Total Number of USB Ports6
Number of USB 3.2 Gen 1 Type-A Ports4
Number of USB 3.2 Gen 2 Type-A Ports1
Number of USB Type-C Ports1
USB Type-CYes
USB Type-C Detail1 x USB-C 3.2 Gen 2 (front) with 5V/3A, USB-C PD 3.0 (100W of laptop charging)
Number of USB Type-A Ports5
USB Type-AYes
Network (RJ-45)Yes
Number of DisplayPort Outputs2
DisplayPortYes
DisplayPort Version1.2++
Headphone/Microphone Combo PortYes
Number of HDMI Outputs2
HDMIYes
USB Power Delivery100W
Software:
Operating System SupportedChromeOS 44
Mac OS X 10.14 Mojave
Windows 7
Physical Characteristics:
Form FactorDesktop
Miscellaneous:
Kensington Security SlotYes
Compatibility

Apple MacBook

Date Inserted: Monday May 19, 2025

This product was last updated on Thursday April 23, 2026

All products are brand new and factory sealed unless otherwise stated.
 *** Disclaimer- Information is supplied by the Manufacturer. The image, including color, may differ from actual product appearance. CompSource, Inc. is not responsible for data. ***

Questions and Answers

Questions and Answers

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Shipping / Returns

Shipping

Ground = $12.95
(EST. Arrival Date between Mon.Apr.27 - Thu.Apr.30)

Two Day Air = $28.00
(EST. Arrival Date on Mon.Apr.27)

Standard One Day = $49.00
(EST. Arrival Date on Fri.Apr.24 after 3PM)

Priority = $75.00
(EST. arrival Date on Fri.Apr.24 in the AM)

U.S Mail Priority (AA,AE,AP only) = $38.50

FedEx International Economy (Canada only) = $88.00

Shipping dates are best estimates based on product location and may vary with holidays.

If product requires trucking, additional fees may apply.

* Some destinations are subject to Applicable State/Duty Taxes

Returns

CompSource realizes that every product may have different return guidelines. Please see the policy below regarding this item.

This Product Has Limited Exchange Privileges.

Limited returns within 30 days of purchase permitted on this product.

For support on this product, please contact Kensington. 800-535-4242 www.kensington.com


Kensington Company's Information

Kensington  
Click Kensington for all products

Local #: 415-572-2700

Toll Free #: 800-535-4242

Tech Support #: 800-535-4242

Site:  www.kensington.com

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    About Kensington

    Kensington The Professionals' ChoiceTM

    Kensington is a leader in desktop and mobile device accessories, trusted by organizations around the world for nearly 35 years. Kensington products empower people to be more productive and create content at the highest levels. In both desktop and mobile environments, Kensington's extensive lineup of award-winning products provide trusted security, desktop productivity innovations, and ergonomic well-being.

    Our tradition holds us to high-quality standards for development. Our commitment to our customers means that the details matter. Our core competencies in engineering, industrial design, product quality, and responsive tech support make Kensington The Professionals' ChoiceTM.

    Engineering - Design for Compatibility
    We look for common platform opportunities to ensure compatibility wherever possible. Across the Kensington product portfolio, systems and hardware, we design to make things work well together.

    Industrial Design - Every Product Is Professional Grade
    Our Industrial Design team creates professional-grade products that can survive in business applications, and that fits in seamlessly to productivity environments. This means you'll look like, and feel like, a professional when using Kensington products.

    Product - Details that Matter
    Whether it is a complex or simple product, we care about the details. We strive to ensure all our products have that extra ingredient or feature to make our product that much better.

    Tech Support - If You're Working, So Are We
    Support when you need it. Our technical support team understands and serves professional use cases. Around the globe, every customer is treated as a professional and gets the benefit of an always-on tech support team.

    Quality - Tested, Proven and Reliable
    The Kensington Quality Engineering team has three decades of experience in high-volume manufacturing of hardware IT products. Rigorous test cycles help us build great products with robust components. We test above industry standards. This ensures our end-users receive a higher-quality product over the long haul.

    Kensington is the inventor and worldwide leader in laptop security locks, the acknowledged leader of Trackball innovation and offers a broad range of premium-branded desktop productivity solutions

    Headquartered in San Mateo, California, Kensington operates as the technology division of ACCO Brands (NYSE: ACCO), one of the world's largest designers, marketers and manufacturers of branded business, academic and consumer products, sold in more than 100 countries across the globe.

    Here are just a few of Kensington's popular categories from CompSource;


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