LENOVO THINKPAD THUNDERBOLT 4 WORKSTATION DOCK THINKPAD THUNDERBOLT 4 WORKSTATION DOCK ColorBlackRed Max Number of External Monitors4 Weight0.45 kg Refresh Rate1* 8K 30Hz Via HDMI 2.1 4*4K 60 Hz AC PlugSlim Tip Hardware RequirementsHost with USB-CThunderbolt port Warranty TypeCRU Output PowerMax 230W BrandThinkPad OS RequirementsWin10 64 bit, Win11 64 bit Packed Weight1.9 kg Agency ApprovalsCB Audio Ports1* 3.5 mm Audio combo Jack Charging PortDC-IN Thunderbolt Port1* Thunderbolt Port – for Host connect 1* Thunderbolt Port – for Device connect USB Ports4* USB-A 1*USB-C Video Ports1* HDMI 2.1 2* DP 1.4 Ethernet1* Gigabit Ethernet Package Typebrown box Packed Dimensions (L x D x H)270 mm x 195 mm x 85 mm Height30 mm Length220 mm Depth80 mm Warranty PeriodThree Year Maximum Operating Temperature40 Celsius Minimum Operating Temperature0 Celsius Maximum Relative Humidity (%)95% Minimum Relative Humidity (%)5% Driver NeededYes Input Power20V 15A Physical Security Feature1* NanoSaver lock slot 1*MicroSaver lock slot Power ButtonYes Power DeliveryYes Shipment GroupThinkPad Universal TBT 4 Dock; 300W AC Power adaptor; Power cord; Setup poster&Warranty Poster Standard TBT 4 Cable