# Power Supply COUGAR ATLAS 550W ATX, 80 PLUS Bronze, 20+4‑pin, 120 mm fan, black

**URL:** https://aio.lv/en/product--silentiumpc-cgr-bd-550--12035030
**Data updated:** 2026-03-12 16:43 (EET)
**Category:** Power Supplies (PSU)
**Manufacturer:** SilentiumPC
**Manufacturer code:** CGR BD-550
**EAN:** 4710483776793
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 63.99 €
**Prices and availability valid until:** 2026-07-17 23:59
**Price without VAT (21%):** 52.88 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--silentiumpc-cgr-bd-550--12035030

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 13.07.2026 | free |
| Pickup points | 16.07.2026 | 1.99 EUR |
| Courier delivery to door | 16.07.2026 | 4.99 EUR |

## Summary description

ATX power supply COUGAR ATLAS 550W provides 550 W total output with 80 PLUS Bronze efficiency (approx. 87%). Designed for PCs and small servers, it features a 20+4‑pin motherboard connector, SATA power cables (lengths up to 450 mm), active cooling with a 120 mm fan, universal 100–240 V AC input and compliance certificates (CCC, CE, EAC, FCC, RoHS). Colour: black.

## Long description

COUGAR ATLAS 550W ATX is a black 80 PLUS Bronze certified power supply designed for desktop PCs and small servers. It delivers up to 550 W total output with approximately 87% efficiency, uses a standard 20+4‑pin ATX motherboard connector and includes SATA power cables with lengths up to 450 mm. The unit supports universal 100–240 V AC input and features active cooling with a 120 mm fan. Compliance certifications include CCC, CE, EAC, FCC and RoHS.
Advantages
The ATLAS 550W combines 80 PLUS Bronze efficiency with a stable DC-DC design that keeps voltage variation low. It uses high-quality 105°C Japanese standby capacitors for improved longevity and consistent power delivery. An ultra-silent 120 mm fan with thermal speed control balances cooling performance and acoustic level. The PSU’s full-black cabling and practical cable lengths simplify tidy installation and routing inside most ATX cases.
Suitable for
Home and office desktop PCs requiring a reliable 550 W supply
Small servers and workstations with ATX form-factor motherboards
Systems where energy efficiency and lower operating costs are important
Builds that benefit from quiet cooling and clean cable management
Key specifications
Total power: 550 W
Efficiency: approx. 87% (80 PLUS Bronze)
Motherboard power connector: 20+4 pin ATX
Fan diameter: 120 mm
Input voltage range: 100–240 V AC, 50/60 Hz
Product colour: Black
Weight: 1.55 kg
How to use
Install the COUGAR ATLAS 550W into a compatible ATX power supply bay in your PC case, aligning the mounting holes and securing it with the supplied screws. Connect the 20+4 pin ATX plug to the motherboard main power socket, and route SATA and peripheral cables to storage devices and other components as required. Ensure the input voltage selector (if present) matches your mains supply or verify automatic switching for 100–240 V operation. Power on the system and monitor for normal operation; the fan will adjust speed automatically based on internal temperature.
Usage recommendations
For reliable operation, keep case airflow unobstructed and periodically remove dust from the PSU intake and fan. Match the PSU’s power capacity to your system’s combined component requirements and allow headroom for peak loads. Use the full-black cables and recommended routing to improve airflow and maintain tidy internal layout.

## Specifications

### Power

| Feature | Value |
|---|---|
| Total power | 550 W |
| Efficiency | 87 % |
| Power protection features | Over current, Over power, Over voltage, Overheating, Short circuit, Under voltage |
| Combined power (+3.3V) | 120 W |
| Combined power (+12V) | 528 W |
| Combined power (+5V) | 120 W |
| Combined power (-12V) | 3.6 W |
| Combined power (+5Vsb) | 15 W |
| Max output current (+3.3V) | 24 A |
| Max output current (+12V) | 44 A |
| Max output current (+5V) | 20 A |
| Max output current (-12V) | 0.3 A |
| Max output current (+5Vsb) | 3 A |
| Input current | 10 - 5 |
| AC input frequency | 50/60 |
| AC input voltage | 100 - 240 |

### Ports & interfaces

| Feature | Value |
|---|---|
| Motherboard power connector | 20+4 pin ATX |
| PCI Express connector | Yes |
| Number of SATA power connectors | 6 |
| CPU power connector (4+4 pin) | Yes |
| PCI Express power connectors (6+2 pin) | 2 |
| Cabling type | Non-Modular |
| Number of PATA power connectors | 2 |
| Motherboard power cable length | 500 mm |
| SATA power cable length | 450, 150 |
| CPU power cable length | 700 mm |
| PCI Express power cable length | 550 mm |

### Performance

| Feature | Value |
|---|---|
| Purpose | PC/Server |
| 80 PLUS certification | 80 PLUS Bronze |

### Design

| Feature | Value |
|---|---|
| Fan diameter | 120 mm |
| Number of fans | 1 fan(s) |
| Cooling type | Active |
| Fan location | Top |
| On/off switch | Yes |
| Product colour | Black |

### Certificates

| Feature | Value |
|---|---|
| Compliance certificates | Federal Communications Commission (FCC), RoHS, CCC, CE, EAC |

### Weight & dimensions

| Feature | Value |
|---|---|
| Weight | 1.55 kg |
| Height | 86 mm |
| Width | 150 mm |
| Depth | 140 mm |

### Packaging data

| Feature | Value |
|---|---|
| Package weight | 1850 g |
| Package depth | 187 mm |
| Package height | 165 mm |
| Package width | 158 mm |
| Package type | Box |

## FAQ

### How much does the COUGAR ATLAS 550W ATX power supply cost, and is it available for purchase?

The price is 63.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 27 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 13.07.2026 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 SilentiumPC 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 SilentiumPC 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: total power, efficiency, motherboard power connector, 80 plus certification, fan diameter, weight, 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 COUGAR ATLAS 550W ATX power supply?

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/12035030/67607450_large.webp