The ThinkPad Advanced Dock (250310U) is ideal for notebook users who work with high-end graphics, multiple monitors, digital media, or who require a second optical or hard drive. Features of the ThinkPad Advance Dock include:

• Left corner alignment for easy system attachment
• Step-by-step LED's and convenient buttons for easy system ejection
• Ultrabay Enhanced for device expansion - Supports the following bay options:
• ThinkPad Ultrabay Slim DVD Burner - Parallel ATA (41N5643)
• ThinkPad CD-RW/DVD-ROM Combo Ultrabay Enhanced Drive (73P3275)
• ThinkPad Serial ATA Hard Drive Bay Adapter (40Y8725)
• One half-size PCI Express card slot - Supports half-size PCI Express cards, including graphics adapters that enable multi-monitoring
• Six-in-one media card reader; Supports xD, SD, CompactFlash, Multi Media Card, SmartMedia, and Memory Stick
• Standard device ports - 5 USB 2.0 ports, 1 PS/2 port for mouse, serial, and parallel (keyboard supported via separately purchased Y cable)
• Audio Ports - Microphone in, headphone out, S/PDIF (digital audio)
• Video Ports - DVI-D (digital), VGA (analog) allow for two monitors (one digital and one analog) to attach. For more information, go to: ThinkPad Digital Video Interface (DVI) and DVI Pass-Through
• Communication ports - Gigabit Ethernet (RJ-45) and modem (RJ-11)
• Integrated key lock and optional Kensington Cable Locks from Lenovo for the cable lock slot to secure your ThinkPad notebook and your ThinkPad Advanced Dock Internal hardware
• Integrated power supply - Recharges the ThinkPad system battery while fueling all functions of the ThinkPad Advanced Dock

Notes:

• Ultrabay Enhanced second ThinkPad hard drive requires an Hard disk drive (HDD) installation kit.
• The DVI-D (digital) video port does not support attachment of a DVI-I to VGA monitor cable.