Wtf is this thing under Lenovo ThinkPad laptops? I've always wondered

[omonoiatis9]

https/s7.postimg.org/p4bvsednv/P1450501_1920.jpg

What's that? It can be pushed in and stuff but I'm scared to meddle with it. What's its purpose?

 

[kerberos_20]

https/s7.postimg.org/p4bvsednv/P1450501_1920.jpg

What's that? It can be pushed in and stuff but I'm scared to meddle with it. What's its purpose?

docking station

 

[jeffrey.beardsley]

If you have a Lenovo docking station, this is where it will plug in.