# Keyboard for HP ProBook 4540 / 4540s / 4045 / 4045s (replacement, model KB310876)

**URL:** https://aio.lv/en/product--hp-kb310876--4112950
**Data updated:** 2025-12-29 15:38 (EET)
**Category:** Replacement Keyboards
**Manufacturer:** HP
**Manufacturer code:** KB310876
**EAN:** 9990000310876
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 25.49 €
**Prices and availability valid until:** 2026-07-13 23:59
**Price without VAT (21%):** 21.07 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--hp-kb310876--4112950

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 22.06.2026 | free |
| Pickup points | 29.06.2026 | 1.99 EUR |
| Courier delivery to door | 29.06.2026 | 4.99 EUR |

## Summary description

Replacement keyboard compatible with HP ProBook laptop models 4540, 4540s, 4045 and 4045s, model KB310876. Designed as a direct fit for the original keyboard slot, it provides standard laptop key layout and connection interface for quick installation. Suitable for repairing damaged or worn keyboards, restoring typing functionality and usability.

## Long description

Replacement keyboard compatible with HP ProBook models 4540, 4540s, 4545 and 4545s. Model KB310876 is designed as a direct-fit spare part to restore the laptop’s typing functionality and replace damaged or worn keyboards. The keyboard uses the standard US layout and comes in black.
Advantages
The keyboard is a direct replacement for the original HP ProBook keyboard, offering the standard US key layout and a compatible connector for straightforward installation. It is supplied as a single unit and backed by a six-month warranty. The black finish matches the typical laptop design and provides consistent appearance and key labeling.
Suitable for
Repairing HP ProBook 4540, 4540s, 4545, 4545s with non-functioning keys
Replacing worn or damaged laptop keyboards
Restoring full typing functionality for office or home use
Key specifications
Model: KB310876
Compatible models: HP ProBook 4540, 4540s, 4545, 4545s (list may be incomplete)
Layout: US
Color: Black
Type: Replacement laptop keyboard
Warranty: 6 months
How to use
Power off the laptop and disconnect the battery if possible. Remove the bezel or retaining screws per the notebook service manual to access the keyboard. Disconnect the keyboard cable from the motherboard, remove the old keyboard and fit the replacement KB310876 in the slot, then reconnect the cable and reassemble the laptop. Power on and test all keys to confirm correct operation.
Usage recommendations
Handle the keyboard and its ribbon cable carefully to avoid bending or damaging the connector. Follow HP service guidance or a professional repair manual for safe disassembly and reassembly. Keep the original screws and small parts organized during replacement.

## FAQ

### How much does the Keyboard HP ProBook 4540 / 4540s KB310876 cost, and is it available for purchase?

The price is 25.49 € (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 22.06.2026 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 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/4112950/10509403_large.webp