---
product_id: 155227130
title: "Lenovo Options USB-C to Ethernet Adapter 4X90S91831"
brand: "lenovo"
price: "KSh12686"
currency: KES
in_stock: true
url: https://www.desertcart.co.ke/products/155227130-lenovo-options-usb-c-to-ethernet-adapter-4x90s91831
store_origin: KE
region: Kenya
---

# Ultra-lightweight & energy efficient design Full-size RJ45 Ethernet for stable wired networking Flippable USB-C plug for seamless connection Lenovo Options USB-C to Ethernet Adapter 4X90S91831

**Brand:** lenovo
**Price:** KSh12686
**Availability:** ✅ In Stock

## Summary

> ⚡ Stay connected, stay ahead — the power of wired speed in your pocket!

## Quick Answers

- **What is this?** Lenovo Options USB-C to Ethernet Adapter 4X90S91831 by lenovo
- **How much does it cost?** KSh12686 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.ke](https://www.desertcart.co.ke/products/155227130-lenovo-options-usb-c-to-ethernet-adapter-4x90s91831)

## 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

- • **Energy Smart:** Designed to minimize power consumption without compromising performance.
- • **Sleek & Portable:** Compact and featherlight at just 27g—perfect for on-the-go professionals.
- • **ThinkPad Optimized:** Tailored compatibility with ThinkPad X1 and ThinkPad 13 series for plug-and-play ease.
- • **Reliable Wired Speed:** Full-size RJ45 port delivers consistent, high-speed Ethernet for uninterrupted productivity.
- • **Effortless Connectivity:** Flippable USB-C plug ensures hassle-free, reversible connection every time.

## Overview

The Lenovo Options USB-C to Ethernet Adapter 4X90S91831 offers a compact, energy-efficient solution for professionals needing reliable wired internet. Featuring a reversible USB-C plug and full-size RJ45 connector, it’s optimized for ThinkPad X1 and 13 series devices, delivering stable, high-speed connectivity in a sleek, lightweight design.

## Description

Lenovo Options USB-C to Ethernet Adapter 4X90S91831

## Features

- Support flippable plug into Type C female connector
- Compatible devices include ThinkPad X1 tablet 20GG, 20GH andamp; ThinkPad 13 20GJ, 20GK All
- Full-size RJ45 connector
- Both compact and incredibly energy efficient
- Not recommended for ABS resin parts
- Country Of Origin :China

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | Lenovo |
| Product Dimensions | 11.99 x 24 x 2.01 cm; 27.22 g |
| Batteries | 1 AA batteries required. |
| Item model number | 4X90S91831 |
| Manufacturer | Exertis (UK) Limited |
| Series | 4X90S91831 |
| Colour | Black |
| Standing screen display size | 16 Inches |
| Computer Memory Type | DDR5 SDRAM |
| Graphics Card Description | Dedicated |
| Connectivity Type | WiFi |
| Wireless Type | 802.11n |
| Voltage | 28 Volts |
| Wattage | 50 watts |
| Hardware Platform | Linux |
| Operating System | Standard |
| Are Batteries Included | No |
| Lithium Battery Energy Content | 2.6 Watt Hours |
| Lithium Battery Packaging | Batteries contained in equipment |
| Lithium Battery Weight | 5 Grams |
| Number Of Lithium Ion Cells | 4 |
| Number of Lithium Metal Cells | 1 |
| Item Weight | 27.2 g |
| Guaranteed software updates until | unknown |

## Product Details

- **Brand:** Lenovo
- **Hardware interface:** Ethernet, USB
- **Colour:** Black
- **Compatible devices:** Tablet, Laptop
- **Product dimensions:** 12L x 24W x 2H centimetres
- **Data link protocol:** Ethernet, USB
- **Data transfer rate:** 1 Gigabytes Per Second
- **Item weight:** 0.06 Pounds
- **EU Spare Part Availability Duration:** 1 Years
- **UPC:** 193124150345

## Images

![Lenovo Options USB-C to Ethernet Adapter 4X90S91831 - Image 1](https://m.media-amazon.com/images/I/41vlPEUXm-L.jpg)
![Lenovo Options USB-C to Ethernet Adapter 4X90S91831 - Image 2](https://m.media-amazon.com/images/I/41W2sRME6kL.jpg)

## Frequently Bought Together

- ThinkPad Options USB C to Ethernet Adapter
- Lenovo ThinkPad USB 3.0 Ethernet Adapter
- Lenovo ThinkPad USB3.0 to Ethernet Adapter

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**Shop now:** [https://www.desertcart.co.ke/products/155227130-lenovo-options-usb-c-to-ethernet-adapter-4x90s91831](https://www.desertcart.co.ke/products/155227130-lenovo-options-usb-c-to-ethernet-adapter-4x90s91831)

---

*Product available on Desertcart Kenya*
*Store origin: KE*
*Last updated: 2026-02-08*