Lenovo ThinkPad 40AN Thunderbolt 3 Dock Gen 2 with 135w PSU and Extra Cables
Model: ThinkPad 40AN Thunderbolt 3 Dock Gen 2. Part Number: 40AN / DK1841 / 03X7538 / SD20M70247. Make: Lenovo. Photos may not show all marks but will show the most significant.