# Keyboard Dell for Inspiron 17 3721 laptop — replacement keyboard, model KB311378

**URL:** https://aio.lv/en/product--dell-kb311378--4128663
**Data updated:** 2026-02-07 21:02 (EET)
**Category:** Replacement Keyboards
**Manufacturer:** Dell
**Manufacturer code:** KB311378
**EAN:** 9990000311378
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 37.49 €
**Prices and availability valid until:** 2026-07-14 23:59
**Price without VAT (21%):** 30.98 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--dell-kb311378--4128663

## 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 Dell Inspiron 17 3721 laptops, model KB311378. Designed as a direct-fit spare part for restoring typing functionality after damage or wear. Easy to install following service guides, it includes standard laptop key layout for the 17.3" Inspiron series. Suitable for repairs, refurbishments, and part swaps to return the notebook to normal operation.

## Long description

Replacement keyboard for Dell Inspiron 17 3721 laptops, model KB311378. Designed as a direct-fit spare part to restore typing functionality for 17.3" Inspiron series notebooks. The keyboard uses a standard US layout in black and is intended for repairs, refurbishments, or part swaps to return the notebook to normal operation.
Advantages
The keyboard is a compatible replacement for certain Dell Inspiron 17 series models and offers a straightforward swap to recover full keyboard functionality. Its US layout and black color match common original configurations for the specified laptop models. The part is covered by a six-month warranty.
Suitable for
Repairing a Dell Inspiron 17 3721 with a damaged or non-functional keyboard
Refurbishing used Inspiron 17 series laptops
Replacing worn or missing keys on a 17.3" Inspiron laptop
Key specifications
Compatibility: Dell Inspiron 17 3721 and certain 17R 5721 configurations
Layout: US (English) keyboard layout
Color: Black
Form factor: Laptop replacement keyboard for 17.3" Inspiron series
Warranty: 6 months
How to use
Power off the laptop and disconnect any power sources and battery according to service guidelines before replacing the keyboard. Remove the appropriate bezel or screws to access the keyboard assembly, disconnect the keyboard ribbon cable from the motherboard, and replace with the KB311378 unit. Reassemble components in reverse order and verify keyboard operation after powering on.
Usage recommendations
Use anti-static precautions during installation and follow Dell service manuals or a qualified technician's instructions when performing the replacement to avoid damage to the keyboard or laptop components.

## FAQ

### How much does the Keyboard Dell Inspiron 17 3721 KB311378 cost, and is it available for purchase?

The price is 37.49 € (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 Dell 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 Dell 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/4128663/10548780_large.webp