StarTech Thunderbolt 2 Dual-Monitor Docking Station for Laptops - 2x DisplayPort - Includes TB Cable - Computer Alliance
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StarTech Thunderbolt 2 Dual-Monitor Docking Station for Laptops - 2x DisplayPort - Includes TB Cable

Web ID: 19751

Transform your MacBook or laptop into a dual-monitor workstation, or connect a single 4K Ultra HD display - Thunderbolt 2 Dual-Video Docking Station - 2x DP ONLY WHILE STOCKS LAST!
Manufacturer PN: TB2DOCK4K2DP
GTIN: 65030860000
Warranty: 3 Year
Manufacturer Website


This Thunderbolt™ 2 docking station for laptops is one of the first Thunderbolt 2 docks to support dual DisplayPort video output. With 20Gbps data throughput, it lets you connect up to 12 devices to your MacBook or laptop, without sacrificing system performance.

Image of the Thunderbolt 2 Dual-Video Dock deployed in a creative studio, and connected to digital optical audio speakers

Plus, it offers ports that are often missing on other laptop docks, such as eSATA and S/PDIF 5.1 digital optical audio.

This specialty laptop dock is a must-have accessory for a variety of environments, including home and office workstations, design studios, and on-site production applications.

Performance advantage chart of Thunderbolt 2 vs other technologies

Work more efficiently using two DisplayPort monitors

This Thunderbolt 2 dock lets you connect two displays to your laptop using common DisplayPort monitors. Traditional Thunderbolt docks require that at least one of your monitors is a Thunderbolt display for dual video, which means you might need to spend extra time and money on the additional display. Because it offers two DisplayPort connections, the dock makes it easy to create a highly productive dual-video workstation, with no additional costs or inconveniences.

With dual displays, you have more screen space to manage several programs at once. You can work more efficiently by avoiding the nuisance of rearranging windows, or flipping back and forth between pages.

Diagram showing the Thunderbolt 2 Dual-Monitor Dock connected to two DisplayPort monitors

Improve your viewing experience with 4K Ultra HD

If you?re looking to add a 4K Ultra HD display to your laptop, then this dock can help. The dock delivers vivid 4K (3840 x 2160p - 30Hz) image quality to a single DisplayPort or Thunderbolt monitor. And, because it supports DP++ you can connect a 4K HDMI® display using a DisplayPort to HDMI Adapter (SKU: DP2HD4KADAP - sold separately). It?s perfect for web and graphic designers, animators, or anyone who works with high-resolution videos and images.

Plus, you can connect a Thunderbolt display and a DisplayPort monitor while maintaining 4K resolution on the DP display. You can also connect multiple displays via a Thunderbolt daisy chain, giving you multiple options for expanding your viewing capabilities.

Diagram showing the Thunderbolt dock connected to a single 4K UltraHD display

Access 12 peripherals at once, including digital optical audio and eSATA devices

The Thunderbolt 2 docking station smashes connection limitations. It provides several peripheral ports, including the hard-to-find connections that are missing from most laptops and docking stations. Ports such as a built-in eSATA port and S/PDIF 5.1 digital optical audio output set this dock apart, making it easy to enhance or harness the storage and audio capabilities of your MacBook or laptop.

The dock also features an always-on USB fast-charge port, so you can quickly charge your smartphone or tablet even when your laptop is disconnected. And because it offers 20Gbps data throughput, the Thunderbolt 2 dual-video docking station lets you connect and use your peripherals at higher speeds. With faster device access you can save time and get work done more quickly.

Diagram showing the Thunderbolt 2 Docking Station's specialty ports such as eSATA and SPDIF digital optical audio

The TB2DOCK4K2DP is backed by a 3-year warranty and free lifetime technical support.

Maximum Supported Resolutions*

Video Output Configuration

Max DisplayPort Resolution
(Video 1)

Max DisplayPort Resolution
(Video 2)

Max Thunderbolt Resolution

DisplayPort 1
(Single Display)

3840 x 2160p (4K)



DisplayPort 2
(Single Display)


3840 x 2160p (4K)


(Single Display)



3840 x 2160p (4K)

DisplayPort 1 and DisplayPort2
(Two Displays)

2560 x 1600p

2560 x 1600p


DisplayPort and Thunderbolt
(Two Displays)

3840 x 2160p (4K)


3440 x 1440p (tested up to)

Thunderbolt Daisy Chain
(Tested up to two displays)



3840 x 2160p (4K) + 2560 x 1440p (tested up to)

*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.

*The docking station does not support three displays unless connected using a Thunderbolt daisy chain.

Connector Type(s)3.5 mm Mini-Jack (3 Position) Female
3.5 mm Mini-Jack (4 Position) Female
DisplayPort (20 pin) Female
eSATA (7 pin, Data) Female
RJ-45 Female
Thunderbolt? 2 (20 pin) Female
Toslink (SPDIF, Optical) Female
USB 3.0 A (Fast-Charge, 9 pin, SuperSpeed) Female
USB Type-A (9 pin) USB 3.0 Female
Humidity5~90% RH (Non-condensing)
Operating Temperature0?C to 40?C (32?F to 104?F)
Storage Temperature-20?C to 70?C (-4?F to 158?F)
4K SupportYes
Bus TypeThunderbolt 2
Chipset IDIntel - Falcon Ridge DSL5520 (Thunderbolt)
Fresco Logic - FL1100EX (USB 3.0 w/ Charge)
ASMedia - ASM1061 (eSATA)
CMedia - CM6500 (Digital Audio)
Texas Instruments - PCM2912A (Audio)
Intel - WGI210AT (LAN)
Displays Supported2
Fast-Charge Port(s)Yes
Industry StandardsThunderbolt 2 - Backward compatible with Thunderbolt 1
USB 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)
Packaging Information
Shipping (Package) Weight1.8 kg [4 lb]
Auto MDIXYes
Compatible Networks10/100/1000 Mbps
Full Duplex SupportYes
Maximum Data Transfer Rate20 Gbps (Thunderbolt 2)
5 Gbps (USB 3.0)
6 Gbps (eSATA)
2 Gbps (Ethernet; Full-Duplex)
Maximum Digital ResolutionsSingle Display:
DisplayPort or Thunderbolt (mDP) only: 3840 x 2160

Dual Display:
DisplayPort + DisplayPort: 2560 x 1600 + 2560 x 1600
DisplayPort + Thunderbolt: 3840 x 2160 + 3440 x 1440 (tested up to)

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 RateThunderbolt 2 - 20 Gbit/s
UASP SupportYes
Physical Characteristics
Enclosure TypeAluminum and Plastic
Product Height27 mm [1.1 in]
Product Length270 mm [10.6 in]
Product Weight541 g [19.1 oz]
Product Width87 mm [3.4 in]
Center Tip PolarityPositive
Input Current2 A
Input Voltage100 ~ 240 AC
Output Current6 A
Output Voltage12 DC
Plug TypeN
Power Consumption (In Watts)72
Power SourceAC Adapter Included
OS CompatibilityWindows? 7, 8, 8.1, 10
macOS 10.12 (Sierra)
Special Notes / Requirements
NoteA 4K-capable display is required to achieve 4K x 2K resolution (4K is also known as 4K x 2K)
Dual-display configuration is available when connected to two DisplayPort monitors, or a DisplayPort and a Thunderbolt monitor. Your laptop hardware must support dual-external displays through its Thunderbolt 2 port
If connected to a Thunderbolt 1 host port, performance may be limited
USB 3.0 is also known as USB 3.1 Gen 1; this connectivity standard offers speeds up to 5Gbps
System and Cable RequirementsThunderbolt 2 enabled computer with a Thunderbolt 2 port
What's in the Box
Included in Packageinstruction manual
power cords (NA/JP, EU, UK, ANZ)
Thunderbolt 2 dual-video docking station
Thunderbolt cable
universal power adapter