# Air cooler be quiet! Pure Rock 3 LX 12 cm 2000 RPM Black

**URL:** https://aio.lv/en/product--bequiet-bk040--11351645
**Data updated:** 2025-12-30 21:09 (EET)
**Category:** CPU Coolers & PC Cooling Systems
**Manufacturer:** bequiet!
**Manufacturer code:** BK040
**EAN:** 4260052192498
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 38.99 €
**Prices and availability valid until:** 2026-07-21 23:59
**Price without VAT (21%):** 32.22 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--bequiet-bk040--11351645

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 09.07.2026 | free |
| Pickup points | 14.07.2026 | 1.89 EUR |
| Courier delivery to door | 14.07.2026 | 4.99 EUR |

## Summary description

The be quiet! Pure Rock 3 LX is an efficient air cooler with a 12 cm fan, maximum speed of 2000 RPM, and airflow of 105.1 m³/h. It features a rifle bearing for durability and operates quietly. Ideal for cooling processors in various builds.

## Long description

The be quiet! Pure Rock 3 LX 12 cm air cooler offers compact performance with a 120 mm Light Wings LX PWM fan that reaches up to 2000 RPM and delivers an airflow of 105.1 m³/h. Designed for efficient processor cooling in a small footprint, this black cooler supports a wide range of sockets including AM5, AM4, LGA 1700 and multiple LGA 115x/1200 variants, and features a rifle bearing for long-term durability. Preinstalled mounting makes installation quick and straightforward.
Advantages
The Pure Rock 3 LX combines a compact heatsink with a high-performance 120 mm fan to provide strong cooling while maintaining low noise levels. Its rifle bearing extends fan lifespan and the preinstalled mounting bracket reduces installation time. The cooler supports a thermal design power (TDP) up to 190 W and fits many common CPU socket types, making it compatible with a wide range of systems.
Suitable for
Small and mid-tower PC builds where space is limited
Mainstream desktop processors with moderate to high cooling needs (up to 190 W TDP)
Quiet home or office systems requiring low-noise cooling
Upgrades for systems using AM5, AM4, LGA 1700, LGA 115x or LGA 1200 sockets
Key specifications
Type: Air cooler
Fan diameter: 120 mm (Light Wings LX PWM)
Maximum fan speed: 2000 RPM
Airflow: 105.1 m³/h
Bearing: Rifle bearing
Thermal Design Power (TDP): 190 W
Supported sockets: Socket AM5, Socket AM4, LGA 1700, LGA 1150/1151/1155, LGA 1200
Colour: Black
Weight: 0.57 kg
How to use
Mount the be quiet! Pure Rock 3 LX onto the CPU following the included mounting hardware and manufacturer instructions. Ensure the cooler is properly aligned with the CPU socket for secure contact with thermal paste applied. Connect the fan to a PWM-capable fan header on the motherboard to allow automatic speed control up to 2000 RPM. Verify clearance around RAM modules and the side panel before closing the case.
Usage recommendations
For best results, use a high-quality thermal paste and ensure adequate case airflow. Regularly clean dust from the heatsink and fan to maintain cooling efficiency and quiet operation.

## Specifications

### Performance

| Feature | Value |
|---|---|
| Type | Air cooler |
| Fan diameter | 120 mm |
| Supported processor sockets | Socket AM5, Socket AM4, LGA 1700, LGA 1150 (Socket H3), LGA 1151 (Socket H4), LGA 1155 (Socket H2), LGA 1200 (Socket H5) |
| Noise level (low speed) | 12.4 dB |
| Noise level (high speed) | 31.2 dB |
| Rotational speed (max) | 2000 RPM |
| Maximum airflow | 61.8 cfm |
| Airflow | 105.1 m³/h |
| Maximum air pressure | 2.51 mmH2O |
| Bearing type | Rifle bearing |
| Pulse-width modulation (PWM) support | Yes |
| Suitable location | Processor |
| Quantity per pack | 1 pc(s) |
| Fan's mean time to failure (MTTF) | 60000 h |

### Design

| Feature | Value |
|---|---|
| Product colour | Black |
| Illumination colour | Multi |
| Number of fans | 1 fan(s) |
| Number of heat pipes | 4 |
| Fins material | Aluminium |
| Base plate material | Copper |
| Fan connector | 4-pin |
| Illumination LED | Yes |

### Weight & dimensions

| Feature | Value |
|---|---|
| Cable length | 0.12 m |
| Heat pipes diameter | 6 mm |
| Fan thickness | 25 mm |
| Weight | 0.57 kg |
| Package weight | 900 g |
| Height | 154 mm |
| Width | 124 mm |
| Depth | 71 mm |
| Package depth | 133 mm |
| Package height | 210 mm |
| Package width | 163 mm |
| Radiator width | 124 mm |
| Radiator depth | 46 mm |
| Radiator height | 154 mm |
| Fan dimensions (W x D x H) | 120 x 120 x 25 |

### Technical details

| Feature | Value |
|---|---|
| Sustainability certificates | Triman |
| Warranty period | 3 year(s) |
| Compliance certificates | CE, RoHS, UKCA, UL, WEEE |

### Power

| Feature | Value |
|---|---|
| Thermal Design Power (TDP) | 190 W |
| Fan voltage | 12 V |
| Fan current | 0.15 A |
| Fan power consumption | 3.6 W |

### Packaging content

| Feature | Value |
|---|---|
| Mounting kit | Yes |

### Logistics data

| Feature | Value |
|---|---|
| Shipping (inner) case width | 342 mm |
| Shipping (inner) case length | 552 mm |
| Shipping (inner) case height | 450 mm |
| Shipping (inner) case gross weight | 14800 g |
| Products per shipping (inner) case | 16 pc(s) |

## FAQ

### How much does the Air cooler be quiet! Pure Rock 3 LX cost, and is it available for purchase?

The price is 38.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 194 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 09.07.2026 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: 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 bequiet! 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 bequiet! 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

### How can I tell if this product suits my needs?

When making a choice, we recommend paying attention to the key features: type, fan diameter, weight, thermal design power (tdp), supported processor sockets, product colour, compatibility with your devices or usage conditions, material quality, functionality, and warranty terms. These characteristics will help you determine how well the model meets your needs.

### Where can I download the instructions for Air cooler be quiet! Pure Rock 3 LX?

You can download the instructions in PDF format from the “Instructions” section on the product description page. The file contains complete information about installation, setup, and usage.

## Image

https://aio.lv/img/cache/product/11351645/65817062_large.webp