Lenovo

Lenovo 433715U ThinkPad Mini Dock Series 3 USB 3.0

4.4 (233 reviews)
90W65w170WUSB 3.0USB 2.0

Expand Your ThinkPad's Capabilities with the Mini Dock Series 3 Enhance your productivity with the ThinkPad Mini Dock Series 3, equipped with USB 3.0. This docking station provides instant connectivity to Ethernet, multiple USB devices, audio and video equipment, and features robust key lock sec...

$59.00*
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*Price sourced from Amazon.com. Last updated:Jun 04, 2026.Price and availability are subject to change.

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Overview

Expand Your ThinkPad's Capabilities with the Mini Dock Series 3

Enhance your productivity with the ThinkPad Mini Dock Series 3, equipped with USB 3.0. This docking station provides instant connectivity to Ethernet, multiple USB devices, audio and video equipment, and features robust key lock security. Ideal for users needing a streamlined workspace and expanded capabilities.

Key Specifications:

  • Connectivity: Ethernet, Audio and Video ports
  • USB: USB 3.0 ports
  • Security: Key lock
  • Compatibility: L330, L412, L420, L430, L512, L520, L530, T400s, T410, T410s T410i, T420, T420s, T420Ssi, T430, T430s, T431s, T430si, T430u, T510, T510i, X220, X220t, X230. Also compatible with the Dual-Core models: T520, T520i, and T530
  • Power: 90W

Key Features

1x VGA, 1x DVI-D, 1x DisplayPort, 1x USB 3.0, 5x USB 2.0, Gigabit Ethernet, Security Key, and Lock Cable Lock Slot.

Maximum supported monitors: 2 (depending on system's graphics capabilities).

Includes ThinkPad 90W AC adapter.

COMPATIBLE with select 65w and 90w Lenovo laptops - NOT recommended for laptops with 170W AC adapters.

Also supports recent models, such as the following series: T420, T430, T510, T520 (dual core), and T530 (dual core).

Specifications

Video Ports
1x VGA, 1x DVI-D, 1x DisplayPort
USB Ports
1x USB 3.0, 5x USB 2.0
Network Port
Gigabit Ethernet
Security Features
Security Key, Lock Cable Lock Slot
Power Adapter Included
ThinkPad 90W AC adapter
Maximum Supported Monitors
2 (depending on system graphics)
Compatible Laptop Series
T420, T430, T510, T520 (dual core), T530 (dual core)
Power Adapter Compatibility
Select 65w and 90w Lenovo laptops

Pros & Cons

👍 Pros

  • Expands connectivity with 1x VGA, 1x DVI-D, and 1x DisplayPort for diverse monitor setups
  • Offers a mix of modern and legacy USB ports, including 1x USB 3.0 and 5x USB 2.0, for peripheral connections
  • Includes Gigabit Ethernet, providing a stable and fast wired network connection for your ThinkPad
  • Features a security key and lock cable lock slot, enhancing the physical security of your docked laptop
  • Supports up to two external monitors, depending on the connected system's graphics capabilities
  • Comes with a ThinkPad 90W AC adapter, providing sufficient power for compatible laptops while docked
  • Compatible with a range of select 65w and 90w Lenovo ThinkPad laptops, including specific T-series models
  • Simplifies cable management and creates a more organized workspace by centralizing connections

👎 Cons

  • Not recommended for laptops that require 170W AC adapters, limiting compatibility with higher-powered models
  • The maximum supported monitors are two, which might be insufficient for users requiring a triple-monitor setup
  • Requires a compatible Lenovo laptop, making it unsuitable for other brands or non-ThinkPad models
  • A significant portion of the USB ports are USB 2.0, which are slower than USB 3.0 or newer standards
  • Legacy ports like VGA and DVI-D may be less relevant for users with only modern DisplayPort or HDMI monitors
  • The dock only lists compatibility with specific older T-series models like T420, T430, T510, T520 (dual core), and T530 (dual core), potentially excluding newer ThinkPads

Frequently Asked Questions

This docking station is compatible with select 65w and 90w Lenovo laptops, including T420, T430, T510, T520 (dual core), and T530 (dual core series).
The Lenovo 433715U ThinkPad Mini Dock Series 3 supports a maximum of two external monitors, depending on the specific graphics capabilities of the connected laptop.
Yes, a ThinkPad 90W AC adapter is included with the docking station to power both the dock and the connected laptop.
The dock features 1x VGA, 1x DVI-D, and 1x DisplayPort, providing options for various display connections.
It includes one USB 3.0 port for faster data transfer and five USB 2.0 ports for other peripherals.
No, it is specifically not recommended for laptops that require 170W AC adapters.