Dell Thunderbolt Dock TB18DC with 240W Adapter with Intel Thunderbolt 3 allows you to connect up to three FHD displays, two 4K displays, or one 5K display at 60Hz; and data transfers up to 40 Gbps.
The Dell Precision Dual USB Type-C Thunderbolt 3 Dock - TB18DC is designed for use only with the Dell Precision 7000 Series laptops (7730/7530) with dual Thunderbolt 3 ports.

Dock + 240 Watt Power Adapter Kit DPart Number: 1RPC0
TB18 Dock unit DPart Number: 2RRTM

Video Ports:
mini DisplayPort x 1 (supports DP 1.2)
DisplayPort x 1•HDMI x 1 (supports HDMI 1.4a)
VGA Port x 1

I/O Ports:
Headset connector x 1
Line out x 1

Network Port:
Gigabit Ethernet (RJ-45) x 1

USB Ports:
2 Front USB 3.0 Ports (one with PowerShare)
1 Rear USB 3.0 Port
2 Rear USB 2.0 Ports

DC-in Port:
one 7.4 mm DC-in port

USB Type-C cable length: 0.5 m
Buttons: Sleep/Wakeup
LED: Front status indicator –Connected Mode - White

What's in the Box:
Dell TB18 Docking Station
240 watt AC Power Adapter
Documentation