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Small square dock with integrated USB-C cable and multiple ports on front, side and back

HP

HP 3TR87AA Thunderbolt Dock G2 Combo Cable ZBook

SKU CH-SQ53-4E55T

Thunderbolt 3 docking station delivers up to 230W system power and drives four 4096 x 2160 displays via two DisplayPort, one VGA and one USB-C video output

  • Port detailsFront: 1 USB-C port with data and power out (15 W) 1 USB-C c
  • Measurements3.86 in × 3.86 in × 2.72 in
  • Product weight1.76 lb (0.8 kg)
  • Key featuresThunderbolt 3 / Power Combo Cable (2.3') Supports Four Displ
  • Thunderbolt 3 dock drives four 4096 x 2160 displays
  • 230 W system power keeps high-performance ZBooks charged
  • 7 m combo cable plus 2.3 ft power lead for flexible desk layout
  • Front USB-C and side USB 3.0 deliver 15 W and powered peripheral charging
  • VGA, dual DisplayPort, RJ45 and audio jack cover legacy and modern I/O

Thunderbolt 3 dock with combo cable for ZBook

The HP 3TR87AA is a Thunderbolt 3 docking station built for ZBook mobile workstations. It uses a 2.3 foot Thunderbolt 3 / Power Combo Cable to deliver up to 230 W of system power while providing data, video and peripheral connectivity through a single port. The compact 3.86 by 3.86 by 2.72 inch enclosure weighs 1.76 lbs and adds front, side and rear I/O for professional workflows.

Sustained 230 W delivery over the combo cable

The dock provides system power up to 230 W continuously through the combo cable, supporting Power Delivery 3.0 at 20 V / 5 A. Front and rear USB-C ports each supply 15 W for charging accessories while the host remains powered. Four video outputs (two DisplayPort, one USB-C DisplayPort alt mode, one VGA) can drive four displays at 4096 x 2160 simultaneously without reducing the power budget for the notebook.

Thunderbolt 3 bandwidth and display limits

Thunderbolt 3 carries PCIe and DisplayPort traffic over the 0.7 metre host cable, capping total throughput at the interface's 40 Gbit/s nominal rate. Four 4096 x 2160 streams share this pipe, so sustained high-refresh or high-colour-depth configurations may hit the bandwidth ceiling. The single rear Thunderbolt port allows daisy-chaining one additional Thunderbolt device within the same bandwidth envelope.

How it compares

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

Price $312.99
Pricier than about 90% of the 1,971 comparable items (median $81.99).

Specifications

Product
Brand nameHP
Model name3TR87AA
Ports & slots
Thunderbolt 3 supportYes
Size & build
Measurements3.86 in × 3.86 in × 2.72 in
Product weight1.76 lb (0.8 kg)

Questions about this item

How much power does the HP 3TR87AA Thunderbolt Dock G2 draw while running all day?

The dock delivers up to 230W system power and supports Power Delivery 3.0 at 20V/5A, so its own draw scales with the attached laptop and peripherals.

Which host connection must my laptop provide for the HP 3TR87AA to work?

Your laptop needs a Thunderbolt 3 port that accepts the 0.7 metre combo cable included with the dock.

Will the HP 3TR87AA drive my older VGA monitor alongside newer DisplayPort screens?

Yes — the dock offers one VGA port and two DisplayPort ports, supporting up to four displays at 4096 x 2160 simultaneously.

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