Lenovo ThinkPad USB-C Dock Gen 2 40AS, 90W Docking, P52s, P53s, P43s 193124916453 | eBay
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Amazon.com: Lenovo ThinkPad USB-C UltraDock With 90W 2 Prong AC Adapter (40A90090US, USA Retail Packaged) : Electronics
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Amazon.com: Lenovo ThinkPad USB 3.0 Pro Dock (40A70045US) 45W AC Adapter With 2 Pin Power Cord Included, Item Does Not Charge The Laptop Or Tablet When Attached : Electronics