Brand new, factory sealed in original Dell packaging. Includes Dell SD25TB4 Smart Dock, 180W AC adapter, power cord, and documentation.
Tech SpecsTechnical InformationConnectivity TechnologyWiredNumber of Displays Supported4Management FeaturesHost PC Management

• MAC address pass-through
• PXE Boot
• Dock Power Button Sync
• Wake-On-LAN
• WLAN to LAN switch
• Kernel Direct Memory Access (DMA) protection

Dock Management Features

• Remote firmware updates without a PC
• Host PC based firmware updates
• Firmware update on disconnect
• Port Disablement independent of PC

Device SupportedNotebookVideo ResolutionDP1.4 with Display Stream Compression

• 4 x WQHD (3440 x 1440) @ 60Hz
• 3 x WQHD (3440 x 1440) @ 60Hz
• 2 x 5K (5120 x 2160) @ 60Hz
• 1 x 6K (6144 x 3456) @ 60Hz

DP1.4 without Display Stream CompressionUp to:

• 4 x HD (1280x720) @ 60Hz
• 3 x FHD (1920x1080) @ 60Hz
• 2 x QHD (2560x1440) @ 60Hz
• 1 x 4K (3840 x 2160) @ 60Hz

Network & CommunicationEthernet TechnologyRJ45 Ethernet port, 2.5GbEInterfaces/PortsInterfacesVideo interfaces

• 2 x DP1.4
• 1 x HDMI 2.1
• 1 x USB-C 3.2 Gen 2 Multi-function DisplayPort 1.4

USB Ports (Data Only)

• 4 x USB-A 3.2 Gen 2 (10 Gbps)
• 1 x USB-C 3.2 Gen 2 (10 Gbps)

USB Ports (Power)

• 4 x USB-A 3.2 Gen 2 (4.5W each)
• 1 x USB-C 3.2 Gen 2 (15W)
• 1 x USB-C Multi-function DisplayPort (7.5W)
• All deliver power with or without PC

USB Power Delivery

• 130W (Dell systems)
• 96W (non-Dell systems)

SoftwareOperating System Supported

• Windows 10
• Windows 11
• Ubuntu
• Red Hat Enterprise Linux
• ChromeOS

Power DescriptionMaximum Power Supply Wattage180WPhysical (Approximate)1.24 lb