# Laptop power adapter Energy4U PA121 — 40 W, 12 V, 3.33 A

**URL:** https://aio.lv/en/product--energy4u-pa121--11836652
**Data updated:** 2026-03-09 14:50 (EET)
**Category:** Portable Device Chargers
**Manufacturer:** Energy4U
**Manufacturer code:** PA121
**EAN:** 5901571082028
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 16.99 €
**Prices and availability valid until:** 2026-07-27 23:59
**Price without VAT (21%):** 14.04 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--energy4u-pa121--11836652

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 14.07.2026 | free |
| Pickup points | 17.07.2026 | 1.89 EUR |
| Courier delivery to door | 17.07.2026 | 4.99 EUR |

## Summary description

Energy4U PA121 is a laptop power adapter rated 40 W with output 12 V and 3.33 A. Designed to supply stable DC power to compatible notebooks and devices, it provides overcurrent and short-circuit protection and a compact external design for portable use. Suitable for on‑desk charging, travel, and replacement of original chargers with matching voltage and connector specification.

## Long description

Energy4U PA121 is a 40 W laptop power adapter with a 12 V, 3.33 A DC output designed to deliver stable power to compatible notebooks and portable devices. The adapter features built-in protection against overcurrent and short circuit, and its compact external design makes it suitable for desk use and travel. Intended as a replacement for original chargers when voltage and connector type match, this adapter provides a straightforward power solution for everyday charging needs.
Advantages
The Energy4U PA121 offers a reliable 12 V / 3.33 A output that maintains consistent voltage under normal load conditions. Its 40 W power rating supports a range of small to mid‑size laptops and other devices that accept a 12 V input. Integrated safety protections reduce the risk of damage from short circuits or overcurrent events, while the compact form factor improves portability and convenient storage. The external adapter design keeps heat-generating components outside the host device, simplifying thermal management.
Suitable for
 Replacement charger for laptops and notebooks requiring 12 V, 3.33 A input
 Charging small-form-factor laptops, netbooks, and some ultrabooks compatible with 12 V adapters
 Use at home, in the office, or while travelling where a compact, lightweight adapter is needed
 Powering compatible external devices that accept a 12 V, 3.33 A DC input
Key specifications
 Output voltage: 12 V DC
 Output current: 3.33 A
 Maximum output power: 40 W
 Protection features: overcurrent protection, short‑circuit protection
 Form factor: external compact AC/DC adapter
How to use
Confirm that your laptop or device requires a 12 V, 3.33 A supply and that the adapter connector matches the device input before connecting. Connect the adapter to the AC mains using the supplied or compatible mains lead, then plug the DC connector into the device power socket. Ensure connections are secure and the adapter is placed on a flat, well‑ventilated surface during operation. Disconnect from mains before cleaning or when the adapter is not in use for extended periods.
Usage recommendations
Use the adapter only with devices that match the 12 V and 3.33 A requirements and have a compatible connector. Avoid blocking ventilation around the adapter, do not expose it to liquids, and replace any damaged mains cable immediately. For intermittent heavy loads, allow the adapter to cool periodically to maintain performance and longevity.

## FAQ

### How much does the Energy4U PA121 laptop power adapter 40 W 12 V cost, and is it available for purchase?

The price is 16.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 5 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 14.07.2026 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: 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 Energy4U 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 Energy4U 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/11836652/67236275_large.webp