The device in the image is a dell wd15 docking station (model k17a),
key specifications
model number: k17a (also referred to as k17a001).
connectivity: connects to laptops via a permanent usb type-c cable that supports displayport over usb-c or thunderbolt.
video output: supports up to 4k resolution at 30hz or dual full hd displays.
power supply: typically requires a 130w or external dell ac adapter to power both the dock and the connected laptop.
available ports
the back and sides of the dock include the following ports:
video: 1x hdmi, 1x mini displayport, and 1x vga.
usb: 3x usb 3.0 ports and 2x usb 2.0 ports.
networking: 1x rj-45 gigabit ethernet port.
audio: 1x audio line-out (rear) and 1x headphone/mic combo jack (front).