Docking Station Lenovo ThinkPad Ultra Docking Black 135W Ethernet 4096x2160

The Lenovo ThinkPad Ultra Docking Station (40AJ) is a docking solution for ThinkPad notebooks that provides multiple ports and 135W external power to support peripherals and external displays. It delivers Ethernet connectivity at 10/100/1000 Mbit/s, supports a maximum digital resolution of 4096 x 2160, and includes legacy and modern video outputs together with USB Type-A ports for accessories. The dock is compact, black, and designed for enterprise use where easy connection and device management are important.

Advantages

The docking station uses a ThinkPad-specific side connector for a secure, driver-free connection and offers rapid charging support and a mirrored power button for convenient mobile transitions. It supports PXE boot, Wake-on-LAN and MAC address pass-through to simplify IT asset management. With a mix of HDMI and VGA video outputs, a Gigabit Ethernet port and four USB 3.2 Gen 2 Type-A ports, it balances compatibility with modern performance requirements.

Suitable for

• Office workstations requiring multi-port connectivity
• Enterprise environments with centralized IT management
• Users who need external displays up to 4096 x 2160
• Setups needing wired Gigabit Ethernet access
• ThinkPad users seeking a driver-free docking experience

Key specifications

• Model: Lenovo ThinkPad Ultra Docking Station (40AJ, MPN 40AJ0135SA)
• Power supply: external 135W
• Ethernet: 1 × RJ-45, 10/100/1000 Mbit/s
• Digital video: up to 4096 × 2160 pixels
• Analog video: VGA up to 2048 × 1536 pixels
• Video ports: 1 × HDMI, 1 × VGA (D-Sub)
• USB: 4 × USB 3.2 Gen 2 (Type-A), 0 × USB 2.0
• Color: Black; Weight: 0.81 kg

How to use

Attach the dock to a compatible ThinkPad notebook using the dedicated side connector to establish a secure, driver-free connection. Connect external displays via HDMI or VGA, plug network cable into the RJ-45 port for wired LAN access, and attach peripherals to the USB Type-A ports. Ensure the external 135W power adapter is connected to supply charging and full dock functionality. Use the mirrored power button on the dock to turn the notebook on or resume from sleep if supported.

Recommendations

For best results in managed enterprise environments, use the docking station with supported ThinkPad models and ensure BIOS/network settings allow PXE boot, Wake-on-LAN and MAC address pass-through when required by IT policies. Use a high-quality HDMI cable for 4K output and a Gigabit Ethernet cable for stable network performance.