# Keyboard for HP ProBook 4330S 4331S 4430S 4431S 4435S (MPN KB310975)

**URL:** https://aio.lv/en/product--hp-kb310975--4112959
**Data updated:** 2025-12-29 15:38 (EET)
**Category:** Replacement Keyboards
**Manufacturer:** HP
**Manufacturer code:** KB310975
**EAN:** 9990000310975
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 28.49 €
**Prices and availability valid until:** 2026-07-14 23:59
**Price without VAT (21%):** 23.55 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--hp-kb310975--4112959

## 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 models 4330S, 4331S, 4430S, 4431S and 4435S, original MPN KB310975. Designed as a direct fit for affected laptop models, it restores full typing functionality and replaces damaged or worn keyboards. Suitable for repair or refurbishment, it helps return the laptop to working condition without modifying the chassis.

## Long description

Replacement keyboard for HP ProBook models 4330S, 4331S, 4430S, 4431S and 4435S, original MPN KB310975. This black US-layout keyboard is designed as a direct-fit spare part to restore full typing functionality in affected laptops without chassis modification. The product is intended for repair or refurbishment and matches the listed ProBook models; the compatibility list may be incomplete.
Advantages
The keyboard provides a like-for-like replacement for worn or damaged units, uses the US key layout, and comes in black to match the original appearance. It is an original-style part (MPN KB310975) that allows straightforward installation and returns the laptop to working condition when installed correctly. A six-month warranty covers manufacturing defects.
Suitable for
Repairing HP ProBook 4330S, 4331S, 4430S, 4431S and 4435S laptops
Refurbishment projects for listed ProBook models
Replacing damaged or non-functional laptop keyboards
Key specifications
Manufacturer: HP
MPN: KB310975
Compatible models: 4330S; 4331S; 4430S; 4431S; 4435S (list may be incomplete)
Layout: US
Color: Black
Warranty: 6 months
EAN: 9990000310975
How to use
Power off the laptop and remove the battery (if removable) before beginning. Follow the laptop service manual or a trusted disassembly guide to remove the bezel and retainers affecting the keyboard. Disconnect the old keyboard's ribbon cable carefully and connect the replacement, ensuring the cable is fully seated and any locking mechanisms are engaged. Reassemble the laptop in reverse order and test all keys before full reinstallation.
Usage recommendations
The keyboard should be installed by someone familiar with laptop disassembly or a qualified technician. Use anti-static precautions when handling internal components and verify model compatibility before purchase; the compatibility list may not include every variant.

## FAQ

### How much does the HP ProBook KB310975 keyboard for 4330S/4331S/4430S/4431S/4435S cost, and is it available for purchase?

The price is 28.49 € (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/4112959/10509412_large.webp