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StarTech HDMI and DVI Dual-Monitor Docking Station for Laptops 4K USB 3
SKU# AB86749, Model# USB3SMDOCK4K

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SKU # AB86749 | Model # USB3SMDOCK4K

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StarTech HDMI and DVI Dual-Monitor Docking Station for Laptops 4K USB 3 - Expand your laptop into a 4K Ultra HD workstation, even in a compact work area with minimal desk space

Manufacturer Warranty: 3 Years Limited Warranty
Manufacturer Contact Info:,

This compact dual-monitor docking station for laptops is uniquely designed with an innovative, stacked-port layout and a small foot-print housing. Because it occupies less surface area than traditional laptop docks, you can easily integrate this sleek docking station into an area with limited desk space, making it perfect for hoteling or hot desk environments.

Diagram of the 4K laptop docking station deployed at a workstation on a small desk and connected to dual monitors

Using just a single cable you can create a full-size dual-display workstation without sacrificing functionality due to space constraints. Now you can increase your productivity by accessing more displays at once. It's an ideal solution for a wide range of conventional and specialized environments.

Set up a dual-monitor workstation

The docking station makes it easy to turn your laptop into a highly productive dual-display workstation, by expanding your screen space onto an HDMI® display and a DVI display. The additional screen space lets you work more efficiently, because you won’t have to flip back and forth between pages or windows. Plus, when combined with your laptop display, you can create a triple-monitor workstation.

Maximum Supported Resolutions*

Video Output Configuration Max HDMI Resolution Max DVI Resolution
(Two Displays)
2048 x 1152p 2048 x 1152p
(Single Display)
3840 x 2160p (4K) N/A
(Single Display)
N/A 2048 x 1152p

*Lower resolutions are also supported. For example, if the max is 3840 x 2160p (4K), it also supports 2560 x 1600p and 2560 x 1440p.

Or, set up a 4K Ultra HD, single-display workstation

This docking station can also bolster your external display image quality and increase your overall viewing area, making it ideal for video editors, animators, designers, and more. It supports 4K x 2K (3840 x 2160p - 30Hz) resolution on a single HDMI display, even if your laptop doesn’t natively support 4K output, so you can avoid costly hardware upgrades or laptop replacements.

With two possibilities for video output, this docking station is a handy accessory for users in business and home office settings, and BYOD (Bring Your Own Device) applications.

Compact 4K laptop docking station deployed at a workstation on a small desk

Integrate the full-featured dock into small spaces

This small form-factor docking station lets you save desk space without compromising the ports you expect from a typical laptop dock. Unlike some compact laptop docks that only offer basic connectivity, this dock occupies minimal space while delivering all the functionality of a full-size docking station. Because of its compact size, the dock is ideal for office hoteling, or hot desks.

You can start work faster and reduce cable clutter in tight spaces by leaving your peripherals connected to the dock at all times. Plus, setup is fast and hassle-free, so there’s little disruption to your productivity, making it perfect for single users, or multiple people who use the same workstation at different times.

Photo showing the palm sized laptop docking station

Connect all your peripherals and charge multiple devices faster

The USB 3.0 (also known as USB 3.1 Gen 1 - 5Gbps) docking station for laptops offers a variety of other connections that are often missing from port-limited laptops. To make work easier, the versatile dock offers four USB 3.0 ports, giving you plenty of ports to connect even more USB devices.

You can keep your mobile devices fully charged and ready to go using the dock’s convenient, front-panel USB fast-charge and sync ports. You can also keep your smartphone and tablet within arm’s reach, and the always-on ports will be available even when your laptop is disconnected from the docking station.

Diagram showing the 4K laptop docking station fast charging a tablet

Universally supported

Unlike some proprietary docking stations designed only to work with specific laptop models, this universal laptop dock works with multiple brands. All you need is your laptop’s USB 3.0 port and you can be up and running quickly. With universal support, you can use this dock with different laptops now, or in the future.

The USB3SMDOCK4K is backed by a 3-year warranty and free lifetime technical support.

Chipset IDDisplayLink - DL-5900
Genesys Logic - GL3521
Displays Supported2
Fast-Charge Port(s)Yes
Industry StandardsUSB Battery Charging Specification Rev. 1.2
IEEE 802.3, IEEE 802.3u, IEEE 802.3ab
USB 3.0 - Backward compatible with USB 2.0/1.1
LED IndicatorsActivity (Yellow)
Link (Green)
Power (Blue)
Packaging Information
Shipping (Package) Weight748 g [26.4 oz]
Auto MDIXYes
Compatible Networks10/100/1000 Mbps
Full Duplex SupportYes
Maximum Data Transfer Rate5 Gbps (USB 3.0)
2 Gbps (Ethernet; Full-Duplex)
Maximum Digital Resolutions3840 x 2160 @ 30Hz (HDMI - Single Display)

2048 x 1152 (DVI - Single Display)

2048 x 1152 and 2048 x 1152 (HDMI and DVI - Two Displays)

Lower resolutions are also supported. For example, if the max is 3840 x 2160p (4K), it also supports 2560 x 1600p and 2560 x 1440p.
Type and RateUSB 3.0 - 5 Gbit/s
UASP SupportYes
Physical Characteristics
ColorSilver & Black
Enclosure TypeAluminum and Plastic
Product Height45 mm [1.8 in]
Product Length94 mm [3.7 in]
Product Weight283 g [10 oz]
Product Width95 mm [3.7 in]
Center Tip PolarityPositive
Input Current0.9 A
Input Voltage100 ~ 240 AC
Output Current4 A
Output Voltage5 DC
Plug TypeC
Power Consumption (In Watts)20
Power SourceAC Adapter Included
OS CompatibilityWindows® 7, 8, 8.1, 10
Mac OS® 10.8 to 10.13.3
Chrome OS v55+
Special Notes / Requirements
NoteA 4K-capable HDMI display is required to achieve 4K x 2K resolution (4K is also known as 4K x 2K)
Extended displays are currently only supported with DisplayLink-based products on macOS 10.11 to 10.13.3. This may change in future versions.
If connected to a USB 2.0 host port, or if using a USB 2.0 host connection cable, performance may be limited (USB 3.0 host cable included)
Bus TypeUSB 3.0
4K SupportYes
Storage Temperature-20°C to 70°C (-4°F to 158°F)
Operating Temperature10°C to 40°C (50°F to 104°F)
Humidity0%~90% RH (Non-condensing)
Connector Type(s)USB Type-B (9 pin) USB 3.0 Female
USB Type-A (9 pin) USB 3.0 Female
USB 3.0 A (Fast-Charge, 9 pin, SuperSpeed) Female
RJ-45 Female
HDMI (19 pin) Female
DVI-I (29 pin) Female
3.5 mm Mini-Jack (4 Position) Female
Special Notes / Requirements
NoteThe DVI-I connector supports DVI-I signaling (digital and analog)
USB 3.0 is also known as USB 3.1 Gen 1; this connectivity standard offers speeds up to 5Gbps
System and Cable RequirementsUSB-enabled computer with an available USB 3.0 port
What's in the Box
Included in Packagequick start guide
universal power adapter (NA/EU/UK/AU)
USB 3.0 host cable
USB 3.0 laptop docking station

SKU # AB86749 | Model # USB3SMDOCK4K

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