# Power Adapter Lenovo 4X21U28818 140W Indoor Black

**URL:** https://aio.lv/en/product--lenovo-4x21u28818--11617867
**Data updated:** 2025-12-31 08:59 (EET)
**Category:** Portable Device Chargers
**Manufacturer:** Lenovo
**Manufacturer code:** 4X21U28818
**Warranty:** 3 Years
**Availability:** Available for order
**Price:** 82.49 €
**Prices and availability valid until:** 2026-08-20 23:59
**Price without VAT (21%):** 68.17 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--lenovo-4x21u28818--11617867

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | Thursday | free |
| Pickup points | 28.07.2026 | 1.79 EUR |
| Courier delivery to door | 28.07.2026 | 4.99 EUR |

## Summary description

The Lenovo 4X21U28818 power adapter is designed for laptops, providing 140W of power. It features an input voltage range of 115-230V and comes in black. The adapter is certified with UL, CB, CE, and more, ensuring safety and reliability. With a cable length of 1m, it is suitable for indoor use. Dimensions are 120mm width and 62.5mm depth, packaged in a box.

## Long description

The ThinkPad Mobile Workstation 140W USB-C GaN Slim AC Adapter (Lenovo 4X21U28818) is a compact, GaN-based replacement or spare power adapter for laptops and workstations with a USB-C power input. It delivers up to 140 W of output power, accepts 115–230 V input at 50/60 Hz, and is intended for indoor use. The unit includes a 1.0 m power cord, comes in black, and is compatible with Lenovo workstations that use a USB-C power plug.
Advantages
GaN technology reduces size and weight compared with traditional silicon adapters, offering a smaller profile while maintaining high power delivery. With 140 W output the adapter supports fast charging for compatible laptops and workstations. The adapter is UL/CB/CE certified for safety and reliability and includes a standard 1.0 m cable for typical indoor setups.
Suitable for
Lenovo ThinkPad and mobile workstation models with USB-C power input
Laptops requiring up to 140 W USB-C PD charging
Replacement or spare adapter for office or home use
Key specifications
Model: Lenovo 4X21U28818
Output power: 140 W
Output voltage: 28 V
Input voltage: 115–230 V
Input frequency: 50/60 Hz
Power cord length: 1.0 m
Colour: Black
Intended use: Indoor (laptop/workstation)
Certifications: UL, CB, CE (manufacturer stated)
Quantity: 1 pc
Weight: 0.5 kg
How to use
Connect the adapter to an appropriate AC mains outlet using the supplied line cord. Plug the USB-C output into the compatible laptop or workstation USB-C power port. Ensure the device supports USB-C PD charging at the adapter’s power level; the connected device will negotiate appropriate power delivery automatically. Disconnect from mains before storing or cleaning.
Usage recommendations
Use the adapter indoors and avoid exposure to moisture or extreme temperatures. Check device compatibility with a 140 W USB-C power source and follow the laptop manufacturer’s guidelines for charging to ensure safe operation.

## Specifications

### Performance

| Feature | Value |
|---|---|
| Compatibility | ThinkPad P16v Gen 3 (Intel)
ThinkPad T1g Gen 8 |
| Brand compatibility | Lenovo |
| Purpose | Laptop |

### Power

| Feature | Value |
|---|---|
| Output power | 140 W |
| Input voltage | 115 - 230 |
| Output voltage | 28 |
| Input frequency | 50/60 |
| Output current | 5 A |

### Design

| Feature | Value |
|---|---|
| Product colour | Black |
| Cable length | 1 m |

### Weight & dimensions

| Feature | Value |
|---|---|
| Weight | 0.5 kg |
| Height | 22 mm |
| Width | 120 mm |
| Depth | 62.5 mm |

### Other features

| Feature | Value |
|---|---|
| Power supply type | Indoor |

### Operational conditions

| Feature | Value |
|---|---|
| Operating relative humidity (H-H) | 8 - 80 |
| Operating temperature (T-T) | 0 - 40 |

### Packaging data

| Feature | Value |
|---|---|
| Package type | Box |

### Packaging content

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

### Certificates

| Feature | Value |
|---|---|
| Certification | UL/CB/CE EMC/CE Doc/PSE/IRAM/NOM/DOE,ErP,CoC/Nrcan/FCC and ICES/Mexico MEPS/PSB/CCC/CECP/KC,MSIP/Korea MEPS/RCM/Australia safety/NZ Doc/BSMI/EAC/Serbia/Ukraine/SII/NRCS/SABS/SIRIM/ISC/SONCAP/KEBS/STZ/INSM/KUCAS/BIS/Morocco/SEC/TISI |

## FAQ

### How much does the Power Adapter Lenovo 4X21U28818 cost, and is it available for purchase?

The price is 82.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 26 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 Thursday 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, Installment. All transactions are 100% secure and encrypted.

### Can Power Adapter Lenovo 4X21U28818 be purchased with a lease?

Yes, the purchase is available both on credit and with an interest-free installment plan. Learn more about installments and credit options: https://aio.lv/en/payment#b3

### 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: weight, 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/11617867/66842895_large.webp