Lenovo Thinkpad Mini Dock Plus Series 3

https://support.lenovo.com/us/en/solutions/pd008390-thinkpad-mini-dock-series-3-overview I used it for my W520. If youre seeing this post, it is available. No shipping/cash pick-up only. The ThinkPad Mini Dock Series 3 (433710U* - United States) is ideal for notebook users who need easy access to the Internet/LAN, multiple USB devices, audio and video equipment, and robust key lock security. Features and benefits: Left corner alignment for easy system attachment Convenient eject button for one-step system removal Six USB 2.0 ports Three video ports: Any two, of the three, video ports can be used simultaneously: ThinkPad systems with NVIDIA Optimus technology: ThinkPad display is enabled. ThinkPad systems with integrated graphics, or other discrete graphics: Disables the ThinkPad display. The ThinkPad display is blank. VGA analog monitor supporting 1920 x 1200 resolution One Single-Link DVI-D digital monitor supporting 1920 x 1200 resolution Single-Link DVI-D port does not support attachment of a DVI-to-VGA monitor adapter. One DisplayPort monitor supporting 2560 x 1600 resoltion Supports attachment (compatibility varies by ThinkPad system) of DisplayPort monitor cables; Using DisplayPort monitor cables reduces resolution to 1920 x 1200 Audio ports*: Analog microphone in, headphone out RJ-45 Ethernet port Integrated key lock and cable lock slot physically secures the ThinkPad and ThinkPad Mini Dock Series 3 The cable lock and key lock operate seperately The cable lock secures the ThinkPad Mini Dock Series 3 to the workspace (desk, table, pole, furniture, wall) The cable lock slot supports attachment of Kensington Cable Locks from Lenovo. The separate key lock, on the side of the ThinkPad Mini Dock Series 3, secures the ThinkPad to the ThinkPad Mini Dock Series 3 To remove the ThinkPad, from the ThinkPad Mini Dock Series 3, the user turns the seperate key. The user does not need to remove the cable lock from the ThinkPad Mini Dock Series 3 Includes two security keys Compatible to Lenovo Easy Reach Monitor Stand (55Y9258)