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Compact black and silver Thunderbolt 3 mini dock with attached 28cm cable, two DisplayPort outputs, USB-A and Gigabit Ethernet ports

StarTech.com

STARTECH TB3DKM2DPL Thunderbolt 3 docking station 28cm cable

SKU CH-HZTM-E715Q MPN TB3DKM2DPL

A portable Thunderbolt 3 dock with dual 4K DisplayPort outputs, USB-A, Gigabit Ethernet, and a 28 cm cable to reduce port strain

  • Port details2 × 4K DisplayPort (DP) displays (up to 4096 × 2160p @ 60 Hz
  • Measurements1.1 in × 4.9 in × 2.7 in
  • Included items1 - Docking Station 1 - User Manual
  • Product colorBlack/Silver
  • Compatible withWindows 10 (32/64 bit), 8.1 (32/64bit), 7 (32/64bit) Windows
  • Product weight5.2 oz
  • Drives two 4K displays at 60 Hz via dual DisplayPort outputs
  • Adds wired network with PXE boot and Wake-on-LAN through Gigabit Ethernet port
  • Connects USB peripherals at 5 Gbps using the USB 3.2 Gen 1 Type-A port
  • 28 cm attached cable reduces strain on laptop ports and riser stands
  • Bus-powered Thunderbolt 3 design needs no external power adapter

Portable Thunderbolt 3 dock for dual 4K monitors

This StarTech.com TB3DKM2DPL adds two DisplayPort outputs, a 5 Gbps USB-A port and Gigabit Ethernet to Thunderbolt 3 laptops. The 28 cm attached cable reduces strain on ports when the computer sits on a riser stand. Bus power keeps the unit compact for mobile workstations.

Thunderbolt 3 bandwidth caps dual 4K at 60 Hz

The 40 Gbps Thunderbolt 3 link carries video and data simultaneously, limiting each DisplayPort to 4096 x 2160 at 60 Hz. Macs with Apple M1 chips support only a single external display through this dock, while Intel-based MacBooks and Windows systems can drive two. USB peripherals share the remaining bandwidth with the Ethernet controller.

28 cm cable length decides fit for raised laptops

The fixed 11 inch tether is the critical dimension; it must reach from the dock position to the host port without pulling. Buyers whose laptops sit farther away or who need a detachable cable for replacement cannot use this model.

How it compares

Measured against everything we stock in USB-C & Laptop Docking Stations, at today’s prices. Recalculated every night.

Price $28.99
Cheaper than about 90% of the 1,970 comparable items (median $81.99).

Specifications

Product
Brand nameStarTech.com
Model nameTB3DKM2DPL
Product colorBlack/Silver
Size & build
Measurements1.1 in × 4.9 in × 2.7 in
Product weight5.2 oz
Shipping weight0.27 kg
Package size203 × 152 × 38 mm
Compatibility
Compatible withWindows 10 (32/64 bit), 8.1 (32/64bit), 7 (32/64bit)
Windows Server 2008 R2, 2012(32/64bit)
Mac OS 10.1–10.15
In the box
Included items1 - Docking Station
1 - User Manual

Questions about this item

Should I pick the TB3DKM2DPL or the older TB3DKM2DP for my setup?

The TB3DKM2DPL replaces the TB3DKM2DP and adds an 11 inch attached cable for extra reach while keeping the same dual 4K 60Hz DisplayPort, USB 3.2 Gen 1 Type-A and Gigabit Ethernet ports.

What does the 40 Gbps Thunderbolt 3 throughput deliver when I connect this dock?

The 40 Gbps Thunderbolt 3 link carries video for two 4096 x 2160 displays at 60 Hz, 5 Gbps USB data and Gigabit Ethernet simultaneously over the single 28 cm cable.

How does the Thunderbolt 3 interface limit what I can plug into the DisplayPort outputs?

Thunderbolt 3 caps the dock at two 4K 60 Hz DisplayPort streams, one 5 Gbps USB 3.2 Gen 1 Type-A port and one Gigabit Ethernet connection with PXE boot and Wake-on-LAN.

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