# Mechanical Keyboard A4Tech Bloody S520N Pudding Black with BLMS Blue Switch

**URL:** https://aio.lv/en/product--a4tech-a4tkla47788--11965360
**Data updated:** 2026-03-11 15:41 (EET)
**Category:** Keyboards
**Manufacturer:** A4Tech
**Manufacturer code:** A4TKLA47788
**EAN:** 4711421002042
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 48.49 €
**Prices and availability valid until:** 2026-08-28 23:59
**Price without VAT (21%):** 40.07 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--a4tech-a4tkla47788--11965360

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | Monday | free |
| Pickup points | 06.08.2026 | 1.79 EUR |
| Courier delivery to door | 06.08.2026 | 4.99 EUR |

## Summary description

A4Tech Bloody S520N is a mechanical 'Pudding' style keyboard in Black featuring BLMS Blue Switches. Designed for tactile feedback and responsive keypresses, it suits typing and gaming where clear actuation and audible feedback are required. The pudding design enhances keycap lighting diffusion; practical for desktop setups requiring durable mechanical keys and visible backlighting.

## Long description

The A4Tech Bloody S520N Pudding Black mechanical keyboard with BLMS Blue Switch delivers tactile, clicky feedback and pronounced actuation for both typing and gaming. Its pudding-style double-shot keycaps are designed to improve backlight diffusion, making legend visibility clearer in dim environments while maintaining a full-sized layout suitable for desktop use. The keyboard combines a durable mechanical switch design with a standard compact footprint to meet requirements for responsive input and visible RGB illumination.
Advantages
The BLMS Blue switches provide defined tactile bumps and audible clicks for precise actuation recognition, which helps reduce input errors during fast typing or gaming sessions. Pudding-style keycaps allow more even and vibrant light dispersion, improving key visibility without compromising keycap durability. The keyboard construction focuses on reliability with mechanical switch longevity and a layout that supports common desktop workflows.
Suitable for
 Typing and transcription tasks requiring tactile feedback
 PC gaming where audible and tactile actuation aids input timing
 Users who want enhanced backlight visibility in low-light environments
 Desktop setups that require a full-sized mechanical keyboard with clear legends
Key specifications
 Switch type: BLMS Blue mechanical switches with tactile and clicky actuation
 Keycap style: Pudding-style double-shot keycaps for improved light diffusion
 Layout: Full-sized keyboard layout suitable for standard desktop use
 Backlighting: Enhanced keycap light transmission for improved visibility (RGB illumination supported)
 Primary use: Typing and gaming with focus on tactile feedback and responsive keystrokes
How to use
Connect the keyboard to a compatible computer using the USB connection and allow the operating system to recognize the device. Adjust backlight settings and any available macros or function-layer options according to the keyboard software or onboard controls. For daily use, press keys with normal typing force to make use of the tactile BLMS Blue actuation. Keep the keyboard on a stable, flat surface to maintain consistent ergonomics and key response.
Usage recommendations
To preserve switch performance and keycap appearance, keep liquids away from the keyboard and clean periodically with compressed air or a soft brush. If using the backlight often, set brightness according to ambient light to balance visibility and power usage. For optimal typing comfort, pair the keyboard with an appropriate wrist rest and adjust desk height to maintain a neutral wrist position.

## FAQ

### How much does the A4Tech Bloody S520N Mechanical Keyboard cost, and is it available for purchase?

The price is 48.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 24 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 Monday 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 A4Tech 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 A4Tech 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