# Air cooler Thermalright Peerless Assassin 120 SE ARGB 12 cm Black 1550 RPM

**URL:** https://aio.lv/en/product--thermalright-pa120-se-argb-1700--10887225
**Data updated:** 2026-01-14 13:04 (EET)
**Category:** CPU Coolers & PC Cooling Systems
**Manufacturer:** Thermalright
**Manufacturer code:** PA120 SE ARGB 1700
**EAN:** 814256003766
**Warranty:** 2 Years
**Availability:** Out of stock

## Summary description

The Thermalright Peerless Assassin 120 SE ARGB is a 12 cm air cooler designed for efficient CPU cooling. It features a maximum rotational speed of 1550 RPM and a maximum air pressure of 1.53 mmH2O. The cooler is equipped with Fluid Dynamic Bearing (FDB) for quiet operation. Its dimensions are 110 mm in width, 125 mm in depth, and 155 mm in height, all in a sleek black finish.

## Long description

The Thermalright Peerless Assassin 120 SE ARGB 12 cm Black 1550 RPM is a compact air cooler engineered for consumer and enthusiast desktop CPUs. This cooler combines a 120 mm fan with Fluid Dynamic Bearing (FDB) for quieter operation, a maximum rotational speed of 1550 RPM and a reported maximum air pressure of 1.53 mmH2O. The unit has a slim footprint with dimensions of 110 mm (W) x 125 mm (D) x 155 mm (H) in a black finish, and is intended to fit a wide range of mainstream processor sockets.
Advantages
The cooler offers a balance of cooling performance and low acoustic output through its 120 mm FDB fan and moderate maximum speed. Its compact dimensions make it suitable for systems with limited clearance while still providing directed airflow over the heatsink. ARGB lighting integration allows synchronization with supported motherboard or controller ecosystems for visual customization. Compatibility with multiple modern and legacy sockets reduces the need for alternative mounting solutions.
Suitable for
Compact desktop builds where space is limited
Mainstream gaming and productivity systems using supported CPU sockets
Upgrades from stock coolers to improve thermal performance and noise
Systems requiring ARGB lighting for aesthetic integration
Key specifications
Type: Air cooler
Fan diameter: 120 mm
Maximum fan speed: 1550 RPM
Maximum air pressure: 1.53 mmH2O
Bearing type: Fluid Dynamic Bearing (FDB)
Dimensions (W×D×H): 110 × 125 × 155 mm
Weight: 0.73 kg
Colour: Black
Supported sockets: Socket AM5, Socket AM4, LGA 1700, LGA 1200, LGA 1150/1151/1155/1156
How to use
Install the cooler following the manufacturer’s mounting instructions for the specific CPU socket in use. Prepare the CPU surface and apply an appropriate amount of thermal paste if it is not pre-applied. Secure the heatsink to the motherboard using the included brackets and fasteners, ensuring even pressure across the CPU heatspreader. Connect the fan power cable to the CPU\_FAN or designated fan header and connect the ARGB cable to a compatible lighting header or controller for illumination control. Verify fan operation and monitor temperatures after initial startup to confirm correct installation.
Usage recommendations
For reliable operation, ensure adequate case airflow and clearances around the cooler; maintain periodic dust removal from the fan and heatsink fins. When adjusting fan curves or ARGB settings, use motherboard or controller software compatible with the cooler’s connectors. Confirm support for your specific CPU socket before installation.

## Specifications

### Performance

| Feature | Value |
|---|---|
| Type | Air cooler |
| Fan diameter | 120 mm |
| Supported processor sockets | Socket AM5, LGA 1150 (Socket H3), LGA 1151 (Socket H4), LGA 1155 (Socket H2), LGA 1156 (Socket H), LGA 1200 (Socket H5), LGA 1700, Socket AM4 |
| Noise level (high speed) | 25.6 dB |
| Rotational speed (max) | 1550 RPM |
| Maximum airflow | 66.17 cfm |
| Maximum air pressure | 1.53 mmH2O |
| Bearing type | Fluid Dynamic Bearing (FDB) |
| Suitable location | Processor |
| Quantity per pack | 1 pc(s) |
| Fan bearing technology | Fluid Dynamic Bearing (FDB) |

### Design

| Feature | Value |
|---|---|
| Product colour | Black |
| Illumination colour | Multi |
| Number of fans | 2 fan(s) |
| Number of heat pipes | 6 |
| Base plate material | Copper |
| Fan connector | 4-pin |
| Illumination LED | Yes |
| LED connector type | 3-pin |

### Weight & dimensions

| Feature | Value |
|---|---|
| Heat pipes diameter | 6 mm |
| Weight | 0.73 kg |
| Height | 155 mm |
| Width | 110 mm |
| Depth | 125 mm |
| Fan weight | 120 g |
| Fan dimensions (W x D x H) | 120 x 120 x 25 |

### Power

| Feature | Value |
|---|---|
| Fan current | 0.2 A |
| LED voltage | 5 V |

### Packaging content

| Feature | Value |
|---|---|
| Package type | Box |
| Screws included | Yes |

## FAQ

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer. 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 Thermalright 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 Thermalright 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, 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 Thermalright Peerless Assassin 120 SE ARGB?

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

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