Kensington SD4781P EQ USB-C & USB-A Dual 4K Docking Station
- 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.*Does not include the cable, power supply or power cords
- Secure screw lock keeps the USB-C® host cable in place even in busy office and hot-desking environments
- Dual 4K Video via HDMI® 2.0 and DP++ 1.2
- Up to 100W Power Delivery to compatible laptops while powering connected accessories
- Up to 10Gbps data transfer speeds via 1 x USB-C® port and 5 x USB-A ports
- Accommodates Zero-Footprint Mounting and Kensington Security Lock
- Free Kensington DockworksTM software
- 3-year limited warranty

Universal Compatibility
Supports USB-C® and legacy USB-A laptops running Windows 7 or above, macOS 10.14 or above and Chrome OS 44 or above.
Sustainability Attributes
The plastic in this product contains up to 50% post-consumer recycled (PCR) content.*Does not include the cable, power supply or power cords
Secure Screw Lock Connection
Host USB-C cable includes a screw lock to ensure the cable remains in place even in busy office environments.

Multiple Ports
Supports USB-C® and delivers speeds up to 10Gbps via 1 x USB-C® port and 5 x USB-A ports. Also includes 2 x HDMI® 2.0 ports, 2 x DP++ 1.2 ports, Gigabit Ethernet port and an audio combo jack.

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 enables dual screen supports for M1/M2/M3 MacBooks.

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 an alternative source of power, sold separately.

Zero-Footprint Mounting Option and Security Cable Lock Slots
Maximise desktop space by mounting your docking station out of the way. Mounting bracket sold separately (K34050WW). Protect your investment with a Kensington cable lock (K65020EU or K65021WW), sold separately.

Industry-Leading Quality, Warranty and Support
Built with quality in mind, we stand behind the SD4781P USB-C® and USB-A Dual 4K Docking Station with a three-year limited warranty.
Supports USB-C® and legacy USB-A laptops running Windows 7 or above, macOS 10.14 or above and Chrome OS 44 or above.
Sustainability Focused
Composed of 73% post-consumer recycled content (PCR), the plastic material used in the SD4781P docking station is aimed at reducing our environmental impact.
Secure Screw Lock Connection
Host USB-C cable includes a screw lock to ensure the cable remains in place even in busy office environments.
Multiple Ports
Supports USB-C® and delivers speeds up to 10Gbps via 1 x USB-C® port and 5 x USB-A ports. Also includes 2 x HDMI® 2.0 ports, 2 x DP++ 1.2 ports, Gigabit Ethernet port and an audio combo jack.
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 enables dual screen supports for M1/M2/M3 MacBooks.
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 an alternative source of power, sold separately.
Zero-Footprint Mounting Option and Security Cable Lock Slots
Maximise desktop space by mounting your docking station out of the way. Mounting bracket sold separately (K34050WW). Protect your investment with a Kensington cable lock (K65020EU or K65021WW), sold separately.
Ideal for professionals requiring a single docking solution for a mixed estate of devices and organisations putting sustainability at the forefront, the SD4781P USB-C® & USB-A Dual 4K Docking Station is a versatile dock that supports the latest USB-C® and legacy USB-A* laptops - including dual monitor support for MacBook M1/M2/M3 laptops. SD4781P’s outer case is composed of 73% post-consumer recycled content (PCR), aimed at reducing our environmental impact. The docking station supports up to 2 external Ultra HD monitors (4K @ 60Hz), with the ability to select between HDMI® 2.0 and DP++ 1.2 connections. A secure screw lock USB-C cable ensures the cable remains in place even in busy office environments. Together with data transfer speeds up to 10Gbps via 6 x USB ports and up to 100W Power Delivery, the SD4781P USB-C® & USB-A Dual 4K Docking Station is the perfect solution for a wide range of different workstation setups. * USB-A devices require an alternative power source, sold separately.
| Ports & interfaces | |
|---|---|
| Combo headphone/mic port | Yes |
| USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity | 4 |
| USB 3.2 Gen 2 (3.1 Gen 2) Type-A ports quantity | 1 |
| USB 3.2 Gen 2 (3.1 Gen 2) Type-C ports quantity | 1 |
| Headphone connectivity | 3.5 mm |
| Host interface | USB 3.2 Gen 2 (3.1 Gen 2) Type-C |
| USB 2.0 ports quantity | 0 |
| Ethernet LAN (RJ-45) ports | 1 |
| HDMI ports quantity | 2 |
| HDMI version | 2.0 |
| DisplayPorts quantity | 2 |
| Microphone in | No |
| Headphone outputs | 1 |
| DC-in jack | Yes |
| Connectivity technology | Wired |
| USB Power Delivery (USB PD) | Yes |
| USB Power Delivery revision | 3.0 |
| USB Power Delivery up to | 100 W |
| DisplayPort version | 1.2 |
| Network | |
| Ethernet LAN | Yes |
| Ethernet LAN data rates | 10,100,1000 Mbit/s |
| Ethernet LAN (RJ-45) ports | 1 |
| Performance | |
| Maximum digital resolution | 4096 x 2160 pixels |
| Country of origin | Thailand |
| Product colour | Black |
| Card reader integrated | No |
| Cable lock slot | Yes |
| Plug and Play | No |
| LED indicators | Yes |
| Cable lock slot type | Kensington, Nano |
| HD type | 4K Ultra HD |
| Housing material | Acrylonitrile butadiene styrene (ABS), Metal, Polycarbonate (PC) |
| Maximum refresh rate | 60 Hz |
| Technical details | |
| Product colour | Black |
| Cable lock slot | Yes |
| Plug and Play | No |
| Sustainability compliance | Yes |
| Sustainability certificates | ErP |
| Compliance certificates | CB, CE, RoHS, UKCA |
| Products per master (outer) case | 6 pc(s) |
| Storage | |
| Card reader integrated | No |
| Power | |
| Power source type | DC |
| Input current | 1.8 A |
| Compatible power plug types | EU, UK |
| AC input voltage | 100 - 240 V |
| Output voltage | 20 V |
| Output current | 8.5 A |
| Software | |
| Windows operating systems supported | Windows 10, Windows 10 Education, Windows 10 Education x64, Windows 10 Enterprise, Windows 10 Enterprise x64, Windows 10 Home, Windows 10 Home x64, Windows 10 IOT Core, Windows 10 IoT Enterprise, Windows 10 Pro, Windows 10 Pro x64, Windows 10 x64, Windows 11, Windows 11 Enterprise, Windows 11 Enterprise x64, Windows 11 Home, Windows 11 Pro, Windows 11 x64, Windows 7, Windows 7 Enterprise, Windows 7 Enterprise x64, Windows 7 Home Basic, Windows 7 Home Basic x64, Windows 7 Home Premium, Windows 7 Home Premium x64, Windows 7 Professional, Windows 7 Professional x64, Windows 7 Starter, Windows 7 Starter x64, Windows 7 Ultimate, Windows 7 Ultimate x64, Windows 7 x64, Windows 8, Windows 8 Enterprise, Windows 8 Enterprise x64, Windows 8 Pro, Windows 8 Pro x64, Windows 8 x64, Windows 8.1, Windows 8.1 Enterprise, Windows 8.1 Enterprise x64, Windows 8.1 Pro, Windows 8.1 Pro x64, Windows 8.1 x64 |
| Mac operating systems supported | Mac OS X 10.14 Mojave, Mac OS X 10.15 Catalina, Mac OS X 10.15.3 Catalina, Mac OS X 11.0 Big Sur, Mac OS X 12.0 Monterey, Mac OS X 13.0 Ventura, Mac OS X 14.0 Sonoma |
| Other operating systems supported | ChromeOS |
| Indication | |
| LED indicators | Yes |
| Operational conditions | |
|---|---|
| Operating temperature (T-T) | 0 - 40 °C |
| Storage temperature (T-T) | -18 - 60 °C |
| Operating relative humidity (H-H) | 0 - 55% |
| Sustainability | |
| Sustainability compliance | Yes |
| Sustainability certificates | ErP |
| Weight & dimensions | |
| Weight | 395 g |
| Width | 210 mm |
| Depth | 90 mm |
| Height | 30 mm |
| Package weight | 1.46 kg |
| Package width | 235 mm |
| Package depth | 150 mm |
| Package height | 90 mm |
| Design | |
| Windows operating systems supported | Windows 10, Windows 10 Education, Windows 10 Education x64, Windows 10 Enterprise, Windows 10 Enterprise x64, Windows 10 Home, Windows 10 Home x64, Windows 10 IOT Core, Windows 10 IoT Enterprise, Windows 10 Pro, Windows 10 Pro x64, Windows 10 x64, Windows 11, Windows 11 Enterprise, Windows 11 Enterprise x64, Windows 11 Home, Windows 11 Pro, Windows 11 x64, Windows 7, Windows 7 Enterprise, Windows 7 Enterprise x64, Windows 7 Home Basic, Windows 7 Home Basic x64, Windows 7 Home Premium, Windows 7 Home Premium x64, Windows 7 Professional, Windows 7 Professional x64, Windows 7 Starter, Windows 7 Starter x64, Windows 7 Ultimate, Windows 7 Ultimate x64, Windows 7 x64, Windows 8, Windows 8 Enterprise, Windows 8 Enterprise x64, Windows 8 Pro, Windows 8 Pro x64, Windows 8 x64, Windows 8.1, Windows 8.1 Enterprise, Windows 8.1 Enterprise x64, Windows 8.1 Pro, Windows 8.1 Pro x64, Windows 8.1 x64 |
| Mac operating systems supported | Mac OS X 10.14 Mojave, Mac OS X 10.15 Catalina, Mac OS X 10.15.3 Catalina, Mac OS X 11.0 Big Sur, Mac OS X 12.0 Monterey, Mac OS X 13.0 Ventura, Mac OS X 14.0 Sonoma |
| Country of origin | Thailand |
| Product colour | Black |
| Cable lock slot | Yes |
| LED indicators | Yes |
| Cable lock slot type | Kensington, Nano |
| Packaging data | |
| Package weight | 1.46 kg |
| Package width | 235 mm |
| Package depth | 150 mm |
| Package height | 90 mm |
| Packaging content | |
| Interface adapters included | USB Type-A male - USB Type-C female |
| Quick start guide | Yes |
| Cables included | AC, USB Type-C |
| AC adapter included | Yes |
| Warranty card | Yes |
| Logistics data | |
| Products per master (outer) case | 6 pc(s) |
| Other features | |
| Minimum system requirements | Intel Core i5 6th+ 8Gb RAM Intel HD Graphics 620 |
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|---|---|---|---|---|---|---|
| SKU |
K33603EU
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TB31PCIEX16
|
40AF0135DK
|
40AF0135EU
|
40AF0135UK
|
DK30C2DPEPUE
|
| Manufacturer |
Kensington
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StarTech.com
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Lenovo
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Lenovo
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Lenovo
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StarTech.com
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| Product colour |
Black
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Black
|
Black
|
Black
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Black
|
N/A
|
