# WLAN card Lenovo 04W3842 ThinkPad T431s X230s

**URL:** https://aio.lv/en/product--lenovo-fru04w3842--565070
**Data updated:** 2026-01-13 15:25 (EET)
**Category:** Other Repair Parts
**Manufacturer:** Lenovo
**Manufacturer code:** FRU04W3842
**EAN:** 5712505079454
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 54.99 €
**Prices and availability valid until:** 2026-08-09 23:59
**Price without VAT (21%):** 45.45 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--lenovo-fru04w3842--565070

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 10.08.2026 | free |
| Pickup points | 13.08.2026 | 1.89 EUR |
| Courier delivery to door | 13.08.2026 | 4.99 EUR |

## Summary description

The Lenovo 04W3842 WLAN card is designed for ThinkPad T431s and X230s models, ensuring reliable wireless connectivity. This high-quality component supports various Wi-Fi standards, providing fast and stable internet access. Easy to install, it enhances your laptop's performance and allows for seamless online experiences, whether for work or leisure.

## Long description

The Lenovo 04W3842 WLAN card is a compact internal wireless adapter designed specifically for Lenovo ThinkPad T431s and X230s laptops. It provides stable Wi‑Fi connectivity and supports common wireless standards to enable reliable internet access for everyday tasks. The module is a direct-replacement component that fits into the compatible Mini PCIe/half‑size slot used by these ThinkPad models and is intended to restore or upgrade a laptop's wireless capability.
Advantages
This WLAN card offers consistent wireless performance with a small form factor that preserves internal space. It is engineered to be compatible with the ThinkPad T431s and X230s hardware and firmware environments, reducing the risk of driver and connection issues. The card supports standard encryption and network protocols to maintain secure connections, and its straightforward installation makes it suitable for technicians and experienced users performing repairs or upgrades.
Suitable for
 Replacing a faulty or damaged wireless module in ThinkPad T431s and X230s
 Repairing laptops after motherboard or wireless subsystem service
 Restoring Wi‑Fi connectivity on systems that previously relied on external adapters
 Technical refurbishment of ThinkPad T431s and X230s units for resale
Key specifications
 Form factor: internal half‑size Mini PCIe wireless card compatible with specific ThinkPad models
 Wireless standards: supports common IEEE 802.11 wireless protocols (backward compatible)
 Security: supports standard Wi‑Fi security protocols for encrypted connections
 Interface: internal PCIe Mini Card electrical and mechanical interface used by compatible laptops
 Compatibility: manufactured for installation in Lenovo ThinkPad T431s and X230s model series
How to use
Power off the laptop, disconnect power and remove the battery if applicable. Open the service access panel to reach the Mini PCIe slot following the laptop manufacturer’s service manual. Carefully remove the existing wireless card if present by unscrewing the retention screws and detaching antenna leads, then install the replacement card into the slot at the correct angle, secure it with screws and reconnect antenna cables to the appropriate terminals. Reassemble the access panel and battery, then power on the laptop. Install or update drivers as required by the operating system to enable full functionality.
Usage recommendations
Use static-safe handling when installing the WLAN card, ensure antenna connectors are fully seated for optimal signal, and obtain the latest compatible drivers from Lenovo or the operating system provider to ensure stable performance and security.

## Specifications

| Feature | Value |
|---|---|
| Type | WLAN card |
| Certification | CE
PTCRB
R & TTE |
| Compatibility | ThinkPad T431s
ThinkPad X230s |
| Product colour | Multicolour |
| Brand compatibility | Lenovo |
| Quantity per pack | 1 pc(s) |

## FAQ

### How much does the WLAN card Lenovo 04W3842 cost, and is it available for purchase?

The price is 54.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 2 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 10.08.2026 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: Bank transfer. 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

## Image

https://aio.lv/img/cache/product/565070/56143336_large.webp