# Cable Gender Changer Lenovo 03X6840

**URL:** https://aio.lv/en/product--lenovo-03x6840--3201633
**Data updated:** 2025-12-29 10:49 (EET)
**Category:** Cable Adapters & Converters
**Manufacturer:** Lenovo
**Manufacturer code:** 03X6840
**EAN:** 5711045899713
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 44.99 €
**Prices and availability valid until:** 2026-08-11 23:59
**Price without VAT (21%):** 37.18 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--lenovo-03x6840--3201633

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 27.07.2026 | free |
| Pickup points | 30.07.2026 | 1.89 EUR |
| Courier delivery to door | 30.07.2026 | 4.99 EUR |

## Summary description

The Lenovo 03X6840 cable gender changer features RJ-45 and USB 2.0 Type-A connectors. It allows for easy conversion between different cable types, ensuring compatibility with various devices. The sleek black design adds a professional touch, making it suitable for both home and office use. Lightweight and portable, this adapter is perfect for on-the-go connectivity needs.

## Long description

The ThinkPad USB 3.0 Ethernet (4X90E51405) adapter provides wired network connectivity for systems that lack an RJ-45 Ethernet port by using an available USB port. It offers Gigabit Ethernet performance over USB 3.0, falls back to 100/10 Mbps on USB 2.0, and on selected ThinkPad models supports booting from the LAN to load a remote image.
Advantages
The adapter features a full-size RJ45 connector with two LEDs that indicate power (green) and network activity (yellow). It supports Quality of Service (QoS) tagged packets, duplicate address detection, full-duplex flow control (IEEE 802.3x), and complies with IEEE 802.3, IEEE 802.3u and IEEE 802.3az requirements. Its small form factor makes it easy to carry with an Ultrabook or tablet for travel and remote work.
Suitable for
Connecting Ultrabooks, tablets or laptops without an RJ-45 port to wired Gigabit networks
Office environments requiring stable wired VPN or network access
Booting selected ThinkPad systems from a network image (PXE/boot over LAN)
Temporary wired connections in hotels or conference centers
Key specifications
Model: ThinkPad USB 3.0 Ethernet (4X90E51405)
Interface: USB 3.0 (backward compatible with USB 2.0)
Network port: Full-size RJ-45 with status LEDs (green = power, yellow = activity)
Data rates: Gigabit (1000 Mbps) on USB 3.0; 100/10 Mbps on USB 2.0
Standards: IEEE 802.3, IEEE 802.3u, IEEE 802.3x flow control, IEEE 802.3az
Features: QoS tagged packets, duplicate address detection, no Power over Ethernet (PoE) support
Supported OS: Windows 7, Windows 8, Windows 8.1 (32-bit & 64-bit)
How to use
Plug the adapter into an available USB port on the computer and connect a network cable to the RJ-45 port. On systems with USB 3.0, ensure the host port is USB 3.0 for Gigabit speeds; when connected to USB 2.0 ports the adapter will operate at 100/10 Mbps. Install drivers if required by the operating system or download them from the manufacturer support site. For network booting, enable LAN boot in the target ThinkPad’s BIOS/UEFI if the feature is supported.
Usage recommendations
Use a USB 3.0 host port and a CAT5e or better Ethernet cable for optimal Gigabit performance. Refer to Lenovo support pages for a list of ThinkPad systems that support boot from LAN and for driver downloads. Do not expect PoE functionality; power over Ethernet is not supported.

## Specifications

### Weight & dimensions

| Feature | Value |
|---|---|
| Height | 30 mm |
| Width | 50 mm |
| Depth | 180 mm |

### Packaging content

| Feature | Value |
|---|---|
| Quantity per pack | 1 pc(s) |

### Features

| Feature | Value |
|---|---|
| Product colour | Black |
| Connector 1 | RJ-45 |
| Connector 2 | USB 2.0 Type-A |
| Connector 1 gender | Male |
| Connector 2 gender | Female |

### Performance

| Feature | Value |
|---|---|
| Compatible operating systems | Microsoft Windows 7 (32-bit and 64-bit)
Microsoft Windows 8 (32-bit and 64-bit)
Microsoft Windows 8.1 (32-bit and 64-bit) |

### Other features

| Feature | Value |
|---|---|
| Compatible products | ThinkPad T530, T430, T430s, T430u, T431s, W530, X230s, X230t, X230, X131e, L530, L430, L330
ThinkPad Edge E530, E430, E330，E130, E135, E535, E435, E335
ThinkPad X240, T440, T440s, T440p, W540, X240s, T540p, L440, L540
ThinkPad S240, S431, S440, S531, S540 S430, S230u
ThinkPad Edge E431/E531
ThinkPad Edge E440/540
ThinkPad Edge E445/545
ThinkPad Helix (Type 3xxx) |

### Operational conditions

| Feature | Value |
|---|---|
| Operating temperature (T-T) | 0 - 70 |

## FAQ

### How much does the Cable Gender Changer Lenovo 03X6840 cost, and is it available for purchase?

The price is 44.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 170 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 27.07.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Cash payment, Bank transfer, Bank cards on-line, Apple Pay, Google Pay. All transactions are 100% secure and encrypted.

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All Lenovo products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized Lenovo service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

### How can I tell if this product suits my needs?

When making a choice, we recommend paying attention to the key features: connector 1, connector 2, product colour, compatibility with your devices or usage conditions, material quality, functionality, and warranty terms. These characteristics will help you determine how well the model meets your needs.

## Image

https://aio.lv/img/cache/product/3201633/56577790_large.webp