# AC adapter HP for Compaq tc4400 19V 4.74A 90W power supply

**URL:** https://aio.lv/en/product--hp-902991-002--3218335
**Data updated:** 2026-02-12 09:50 (EET)
**Category:** Other Repair Parts
**Manufacturer:** HP
**Manufacturer code:** 902991-002
**EAN:** 5706998764218
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 56.99 €
**Prices and availability valid until:** 2026-07-31 23:59
**Price without VAT (21%):** 47.10 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--hp-902991-002--3218335

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 15.07.2026 | free |
| Pickup points | 20.07.2026 | 1.89 EUR |
| Courier delivery to door | 20.07.2026 | 4.99 EUR |

## Summary description

AC adapter compatible with HP Compaq tc4400 notebooks, output 19V 4.74A (90W). Provides regulated DC power for charging the laptop battery and operating the device from mains. Suitable replacement or spare for users needing original-spec power delivery, ensuring stable voltage, connector compatibility, and protection during everyday use at home, office, or on the move.

## Long description

AC adapter HP for Compaq tc4400 19V 4.74A 90W power supply is a mains-powered external power unit designed to provide regulated DC power to HP Compaq tc4400 notebooks. It delivers 19 volts at up to 4.74 amperes (90 watts) to charge the laptop battery and run the computer when connected to an AC outlet. The adapter includes a compatible barrel connector and an integrated cable suitable for standard laptop power sockets used on Compaq tc4400 models.
Advantages
This power supply provides stable voltage output and sufficient current capacity to support normal laptop operation and battery charging under typical workloads. It is built to meet the power requirements of the HP Compaq tc4400, offering connector compatibility and thermal protection to reduce the risk of overheating. The unit is compact enough for transport and storage while offering a consistent 90W power delivery that helps maintain system performance during use from mains power.
Suitable for
Replacing a lost or damaged AC adapter for HP Compaq tc4400 notebooks
Using at home, office, or during travel when mains power is available
Charging the laptop battery and running the device under normal workload conditions
Keeping as a spare adapter for backup power needs
Key specifications
Output voltage: 19 V DC
Maximum output current: 4.74 A
Output power: 90 W
Connector type: barrel-style laptop DC plug compatible with Compaq tc4400
Input: standard AC mains (region-specific plug to be used)
Protection features: overcurrent and thermal protection (built into adapter)
Form factor: external rectangular AC adapter with attached DC cable
How to use
Connect the adapter to a suitable AC mains outlet using the correct regional mains plug. Insert the adapter's barrel connector firmly into the laptop's DC input jack. When connected, the adapter will supply power to the HP Compaq tc4400 and charge the battery if present and functioning. Avoid placing the adapter on soft or heat-retaining surfaces during extended use to ensure proper cooling. Unplug the mains connection before disconnecting the barrel plug from the laptop to reduce arcing at the connector.
Usage recommendations
Use the adapter with compatible HP Compaq tc4400 notebooks only. Verify connector fit and polarity before use. Avoid exposing the adapter to moisture, extreme temperatures, or physical damage. For long-term storage, unplug the unit and store it in a dry, cool place. If the adapter becomes unusually hot, emits an odor, or shows visible damage, discontinue use and replace it.

## FAQ

### How much does the AC adapter HP Compaq tc4400 19V 4.74A 90W cost, and is it available for purchase?

The price is 56.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 19 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 15.07.2026 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 HP 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 HP 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/3218335/68657184_large.webp