The ThinkPad Port Replicator Series 3 offers convenient, one step connection to the devices you use every day. You can access your LAN or Internet connection, VGA monitor, and USB attach peripherals with one simple click. Compatible with ThinkPad T400s, T410, T410s, T510, W510, L412 and L512 laptops.<br><br><b>Features and Benefits:</b><br>- Left corner alignment for easy system attachment;<br>- Convenient eject button for one-step system removal;<br>- 4 USB 2.0 ports;<br>- VGA monitor port;<br>- RJ-45 Ethernet port;<br>- Cable lock slot to secure both your port replicator and your notebook;<br>- Uses the system AC adapter, which can be purchased separately;<br>- Backed by a one-year warranty.