---
product_id: 1325490
title: "ThinkPad USA Ultra Dock With 90W 2 Prong AC Adapter (40A20090US, Retail Packaged), Black"
brand: "lenovo"
price: "R$1199"
currency: BRL
in_stock: true
reviews_count: 8
category: "Lenovo"
url: https://www.desertcart.com.br/products/1325490-thinkpad-usa-ultra-dock-with-90w-2-prong-ac-adapter
store_origin: BR
region: Brazil
---

# 90W power delivery 6 USB ports (3x USB 3.0 + 3x USB 2.0) Dual DisplayPort 1.2 support ThinkPad USA Ultra Dock With 90W 2 Prong AC Adapter (40A20090US, Retail Packaged), Black

**Brand:** lenovo
**Price:** R$1199
**Availability:** ✅ In Stock

## Summary

> ⚡ Power up your productivity with Lenovo’s Ultra Dock — where connectivity meets convenience!

## Quick Answers

- **What is this?** ThinkPad USA Ultra Dock With 90W 2 Prong AC Adapter (40A20090US, Retail Packaged), Black by lenovo
- **How much does it cost?** R$1199 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.br](https://www.desertcart.com.br/products/1325490-thinkpad-usa-ultra-dock-with-90w-2-prong-ac-adapter)

## Best For

- lenovo enthusiasts

## Why This Product

- Trusted lenovo brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Powerful 90W Charging:** Keep your ThinkPad fully charged and ready with a robust 90W AC adapter designed for optimal performance.
- • **Trusted Lenovo Durability:** Built to last with classic ThinkPad ruggedness and compatibility across a wide range of Lenovo laptops, ensuring long-term reliability.
- • **Ultimate Connectivity Hub:** Six USB ports including three USB 3.0 for lightning-fast data transfer and multiple device connections without compromise.
- • **Seamless Multi-Display Setup:** Extend your workspace effortlessly with dual DisplayPort 1.2 and HDMI outputs for up to two external monitors plus your laptop screen.
- • **Effortless Docking Experience:** Slide your laptop on and off smoothly with a secure, noise-free docking mechanism that enhances your workflow.

## Overview

The Lenovo ThinkPad USA Ultra Dock (model 40A20090US) is a versatile docking station designed for select Lenovo ThinkPad laptops, featuring a 90W AC adapter, six USB ports (3 USB 3.0 and 3 USB 2.0), and multiple video outputs including dual DisplayPort 1.2, HDMI, DVI-D, and VGA. It supports up to two external displays plus the laptop screen, delivering seamless multi-monitor setups. Engineered for durability and ease of use, it offers smooth docking and broad compatibility with many ThinkPad models, making it an essential accessory for professionals seeking enhanced connectivity and workspace efficiency.

## Description

Lenovo ThinkPad 90W US Ultra Dock Laptop Notebook Port Replicator Docking Station for ThinkPad L440, ThinkPad L540, ThinkPad X240, ThinkPad T440 (Integrated graphics models only; discrete graphics model not compatible), ThinkPad T440p, ThinkPad T440s (Integrated graphics models only; discrete graphics model not compatible), and ThinkPad T540p.

Review: An astonishing value - I've been a Thinkpad user for decades. There are certain aspects of the brand that just work for me. The dull black plastic looks good after years, the clunky look is durable and timeless, the keyboards are almost always very pleasant and easy to type on, even on an airplane, and these docks. This dock looks very similar to the one I had 15 years ago for my IBM built thinkpad. I'm using this with my pair of T440 laptops, cheap old laptops that have excellent keyboards and are a steal to buy refurbished. though it's not listed in the compatibility list, it works flawlessly. The laptop slides very easily onto the dock, even with the extended life battery, and pops off very smoothly, without a click or any real mechanical noise. It's a nice improvement over the older docks. You get tons of USB ports, an HDMI port, a few other video ports. Truthfully the T440 isn't powerful enough to support a bunch of screens anyway, but you could run a pair if you wanted, and there are much more powerful laptops compatible with the dock. For the low price of this product, you get a really convenient way to connect a desk of accessories, and the T440 didn't have a normal HDMI port anyway. If this is compatible with your Thinkpad, it's a really good bargain and I found no defect with the way the laptop docks (some reviews for some docks complain about design flaws, but this model doesn't seem to have them.
Review: A must have for home office lenovo laptops - Pro: 1. Extra ports 2. Easy docking 3. No issues with dual monitor (2 Display port). Can extend desktop 1 & 2 just fine. Laptop can be a 3rd screen, but i usually just go with the two monitors. 4. USB ports work fine. Even multiple usb keyboard/mouse dongles, recognizes more than one keyboard & mouse if you have them. 5. Mic port works fine also for head set. (trrs) Neutral: 6. Had some compatibility issue with a KVM switch, it may be the kvm / driver. It didn't recognize the keyboard and mouse from KVM. con: 1. none for now. Had it for a few months, so far so good, no issues.

## Features

- 3x USB 2.0 and 3x USB 3.0
- 2x DisplayPort 1.2, 1x DVI-D, 1x HDMI 1.4 and 1x VGA (max two displays, including laptop screen)
- Comes with ThinkPad US AC adapter (90W) Does not support ThinkPad T460p quad-core models with discrete graphics. Please use the ThinkPad Ultra Dock 170W.
- COMPATIBLE with select 65w and 90w Lenovo laptops - NOT recommended for laptops with 170W AC adapters
- A475, L570, L470, L460, L560, L450, ThinkPad 25, T470p, T470s, T570, T470, T460s, T560, T460, T460p, T550, T450, T450s, P51s, X270, X260, X250
- Lenovo ThinkPad Ultra Dock - 90W US - for Notebook - Proprietary Interface - 6 x USB Ports - Network (RJ-45) - HDMI - DVI - VGA - Display Port
- Lenovo ThinkPad Ultra Dock - 90W US
- for Notebook - Proprietary Interface - 6 x USB Ports - Network (RJ-45) - HDMI - DVI - VGA - Display Port

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00E0E2DIE |
| Best Sellers Rank | #14,715 in Computers & Accessories ( See Top 100 in Computers & Accessories ) #913 in Laptop Docking Stations |
| Brand | Lenovo |
| Color | Black |
| Computer Memory Type | DDR5 SDRAM |
| Customer Reviews | 4.6 4.6 out of 5 stars (2,076) |
| Date First Available | April 13, 2017 |
| Item Dimensions LxWxH | 6.4 x 13.6 x 2.2 inches |
| Item Weight | 1 pounds |
| Item model number | 40A20090US |
| Number of USB 2.0 Ports | 3 |
| Number of USB 3.0 Ports | 3 |
| Product Dimensions | 6.4 x 13.6 x 2.2 inches |
| RAM | 8 GB |
| Series | ThinkPad Ultra Dock |
| Standing screen display size | 15.6 Inches |

## Product Details

- **Brand:** Lenovo
- **Color:** Black
- **Hardware Interface:** USB 2.0
- **Has webcam capability?:** No
- **Item Weight:** 1 Pounds
- **Lithium Battery Energy Content:** 45 Kilowatt Hours
- **Model Name:** ThinkPad Ultra Dock
- **Screen Size:** 15.6 Inches
- **Specific Uses For Product:** personal
- **Total USB Ports:** 3

## Images

![ThinkPad USA Ultra Dock With 90W 2 Prong AC Adapter (40A20090US, Retail Packaged), Black - Image 1](https://m.media-amazon.com/images/I/5146UX5WuLL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ An astonishing value
*by C***N on July 2, 2020*

I've been a Thinkpad user for decades. There are certain aspects of the brand that just work for me. The dull black plastic looks good after years, the clunky look is durable and timeless, the keyboards are almost always very pleasant and easy to type on, even on an airplane, and these docks. This dock looks very similar to the one I had 15 years ago for my IBM built thinkpad. I'm using this with my pair of T440 laptops, cheap old laptops that have excellent keyboards and are a steal to buy refurbished. though it's not listed in the compatibility list, it works flawlessly. The laptop slides very easily onto the dock, even with the extended life battery, and pops off very smoothly, without a click or any real mechanical noise. It's a nice improvement over the older docks. You get tons of USB ports, an HDMI port, a few other video ports. Truthfully the T440 isn't powerful enough to support a bunch of screens anyway, but you could run a pair if you wanted, and there are much more powerful laptops compatible with the dock. For the low price of this product, you get a really convenient way to connect a desk of accessories, and the T440 didn't have a normal HDMI port anyway. If this is compatible with your Thinkpad, it's a really good bargain and I found no defect with the way the laptop docks (some reviews for some docks complain about design flaws, but this model doesn't seem to have them.

### ⭐⭐⭐⭐⭐ A must have for home office lenovo laptops
*by D***5 on July 27, 2020*

Pro: 1. Extra ports 2. Easy docking 3. No issues with dual monitor (2 Display port). Can extend desktop 1 & 2 just fine. Laptop can be a 3rd screen, but i usually just go with the two monitors. 4. USB ports work fine. Even multiple usb keyboard/mouse dongles, recognizes more than one keyboard & mouse if you have them. 5. Mic port works fine also for head set. (trrs) Neutral: 6. Had some compatibility issue with a KVM switch, it may be the kvm / driver. It didn't recognize the keyboard and mouse from KVM. con: 1. none for now. Had it for a few months, so far so good, no issues.

### ⭐⭐⭐⭐⭐ Killer deal, all features work on Linux
*by P***K on October 10, 2019*

tl;dr: • multimonitor works on Linux • 75-85% off makes it a hell of a deal • Lenovo cheaped out on the AC adapter, but it's fine I picked this thing up because it's compatible with my personal laptop, which despite having a Thunderbolt port, doesn't support my existing TB3 docks. (I think this is for want of PCI-E bandwidth; my TB docks are dual 4k but the laptop's TB3 lane is only 2x.) My first complaint about this thing is that it didn't actually come with a slim-tip AC adapter. Instead, it came with the old barrel-type and a very short adapter cable. That adapter cable caused problems for me, but I only noticed the problem after I had dropped and stepped on it, so that may not be Lenovo's fault at all. The problem is that due to slight tweaks or a will o' the wisp, the power would get cut to the device, and when it powercycled, my monitors didn't come back. I picked up a very cheap, third-party, aftermarket slim tip adapter with decent reviews, and I've had no problems of that kind since. LIMITATIONS: For multi-monitor use, the bandwidth limitations on the two DisplayPort ports on the dock allow only 3840x2160@30Hz each. This can be troublesome if your monitors use more bandwidth than that. Both monitors I have hooked up are that way: one is 3840x2160@60Hz and the other is 2560x1440p@165Hz. This means that with both plugged into the dock, sometimes only one will show up or give any output, but this can be worked around. Additionally, each DisplayPort port is paired with another video port of a different type, and only one of each pair can be used together. So it supports only two monitors. I have had no success daisy-chaining standalone MST hubs to try to add a third monitor, but I have only tried with one so far. LINUX QUIRKS You will need a recent Linux kernel for this to work. I'm running Linux 5.3 on NixOS. Additionally, sometimes a monitor will not show up in the KDE graphical display management tools, even though it is visible in the output of `xrandr -q`. Even when the graphical display is broken, however, VTs pretty much always work. So I have gotten my monitors to behave by instructing xrandr to set the resolutions and refresh rates from the virtual terminal, then quickly switching back. My shell is Fish, so the command in my specific case is this: sleep 10s; xrandr --output DP2-1 --mode 2560x1440 -r 60; xrandr --output DP2-2 -m 2560x1440 -r 60 and then switching back to the VT of the display server. OTHER NOTES: The laptop runs really hot most of the time when it's closed and pushing as many pixels as it can on the two external monitors.

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*Product available on Desertcart Brazil*
*Store origin: BR*
*Last updated: 2026-02-26*