Title:Lenovo ThinkPad USB 3.0 Ultra Dock DK1523 4K DisplayLink |UNIT ONLYItem Specifics:

• Brand:Lenovo
• Model:DK1523 / 40A8
• Ports:DisplayPort, HDMI, Gigabit Ethernet, 3x USB 3.0, 2x USB 2.0
• Max Resolution:4K UHD Supported (via DisplayLink)
• Power Input:Lenovo Slim Tip (Rectangle)

Description:
Genuine Lenovo ThinkPad USB 3.0 Ultra Dock (Model DK1523). High-performance docking station featuring DisplayLink 4K technology for ultra-high-definition video output. Perfect for expanding your laptop's capabilities with a single USB 3.0 cable. Includes 4K-ready HDMI and DisplayPort, plus 6 total USB ports.
PLEASE NOTE: UNIT ONLY.No power adapter or USB 3.0 host cable included. Requires a standard Lenovo Slim Tip power supply.Collector's Notes:The "Ultra" designation is key here. While most docks of this era struggled with high resolutions, this unit uses the DL-5xxx series chipset from DisplayLink, allowing for smooth 4K output. It's a robust, fanless design that’s a favorite for quiet home office setups.Condition:

• Technical Labels:Bottom labels with Serial Number (SN: UJ700M44) and MAC address are fully intact and legible.
• Chassis:Clean condition, rubber feet are present. Wall-mount holes are clean and ready for use.