This is corporate surplus in good physical condition.
Toshiba pa3017u pa3017u-1prp 10/100 Network Port Replicator ii
Unit has the following connectors, connections and interfaces (all in good condition):

• PS2 keyboard
• PS2 mouse
• db9m serial com1 port
• db15f vga video
• db25f printer lpt1
• 2 usb ports
• line in
• line out
• 10/100 cat5 rj45 ethernet network with status lights
• notebook interface
• power input (barrel style) (power supply not included)
• kensington style notebook notelock slot tie down security point (also locks notebook into dock)

Toshiba website research indicates that this dock will work with the following Tecra models:

What does a Docking Station or Port Replicator do for me?The key purpose in a docking station is to reduce wear and tear on your notebook. When used in a home or office setting, many notebook users often have several devices plugged into their notebook. The docking station allows you to keep those devices installed for your notebook to use, but minimize the amount of times you have to plug / unplug those devices into the back or sides of your notebook.Wear and strain to the connections on the back of your notebook are some of the leading causes of damaged / broken notebooks. Specifically, the internal motherboard assembly on which those rear connections are mounted to. Over time, the constant plugging and un-plugging of a connection on the back of the notebook will strain those electrical and physical connections.Also, some Docking stations and Port Replicators may provide added functions / features normally not included with the original notebook or laptop computer.