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header-product Power Supply COUGAR ATLAS 550W ATX, 80 PLUS Bronze, 20+4‑pin, 120 mm fan, black
67.49 €

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

COUGAR ATLAS 550W ATX power supply Photo 1
COUGAR ATLAS 550W ATX power supply Photo 2
COUGAR ATLAS 550W ATX power supply Photo 3
COUGAR ATLAS 550W ATX power supply Photo 4
COUGAR ATLAS 550W ATX power supply Photo 5
COUGAR ATLAS 550W ATX power supply Photo 6
COUGAR ATLAS 550W ATX power supply Photo 7
COUGAR ATLAS 550W ATX power supply Photo 1
COUGAR ATLAS 550W ATX power supply Photo 2
COUGAR ATLAS 550W ATX power supply Photo 3
COUGAR ATLAS 550W ATX power supply Photo 4
COUGAR ATLAS 550W ATX power supply Photo 5
COUGAR ATLAS 550W ATX power supply Photo 6
COUGAR ATLAS 550W ATX power supply Photo 7
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Power Supply COUGAR ATLAS 550W ATX, 80 PLUS Bronze, 20+4‑pin, 120 mm fan, black

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

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Short 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.
Available for order: 19 pcs.
Warranty: 2 Years
SKU: 12035030
Manufacturer: SilentiumPC
free shipment

Cheapest delivery:

Unisend LV

Pick-up points

Unisend LV

Cost

1.79 €

Deliver

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Customer service center
2b. Kengaraga str., Riga, Latvia, LV-1063
17.08.2026 {{selectedOffer.officeDeliveryString}}
free
Courier Delivery Please note that in case of a large parcel additional delivery costs may apply!
20.08.2026 {{selectedOffer.courierDeliveryString}}
From 4.99 € (Weight: 1.55 kg)
Parcel couriers
Unisend LV / Venipak Pickup LV / Venipak Locker LV / Latvijas Pasts pakomāts / DPD Paku skapis / Omniva LV / Latvijas Pasts nodaļa
20.08.2026 {{selectedOffer.parcelStationDeliveryString}}
From 1.79 €
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Product information

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

80 PLUS certification:
80 PLUS Bronze
Purpose: What the product is used for.
PC/Server
Motherboard power connector: The way in which the motherboard is connected to the power supply.
20+4 pin ATX
AC input voltage: The voltage of the AC electricity that is inputted into the product.
100 - 240
Total power: The total power that is needed by the device, or the total power produced by the device.
550 W
All features

Packaging data

Package type: The type of product package e.g. box.
Box
Package weight: Weight of the packaged product.
1850 g
Package height: The distance from the top to the bottom of the packaging.
165 mm
Package depth: The distance from the front to the back of the packaging.
187 mm
Package width: The distance from one side of the packaging to the other.
158 mm

Weight & dimensions

Weight: Weight of the product without packaging (net weight). If possible, the net weight is given including standard accessories and supplies. Please note that sometimes the manufacturer leaves out the weight of accessories and/or supplies.
1.55 kg
Height: The measurement of the product from head to foot or from base to top.
86 mm
Depth: The distance from the front to the back of something.
140 mm
Width: The measurement or extent of something from side to side.
150 mm

Certificates

Compliance certificates: Indicates which regulatory, safety, and environmental standards the product complies with, as verified by recognized authorities or certification bodies.
RoHS, Federal Communications Commission (FCC), EAC, CE, CCC

Design

On/off switch: The button which is pressed to switch the device on or off.
Yes
Fan location:
Top
Number of fans: The quantity of fans (apparatus with rotating blades that creates a current of air for cooling or ventilation).
1 fan(s)
Fan diameter: The size of the fan, measured by the distance from one side of the fan to the other, via a straight line going through the middle of the fan.
120 mm
Cooling type: The method used to cool the device or to cool the air around the device.
Active
Product colour: The colour e.g. red, blue, green, black, white.
Black

Performance

80 PLUS certification:
80 PLUS Bronze
Purpose: What the product is used for.
PC/Server

Ports & interfaces

Cabling type:
Non-Modular
PCI Express connector:
Yes
CPU power cable length:
700 mm
CPU power connector (4+4 pin):
Yes
PCI Express power cable length:
550 mm
PCI Express power connectors (6+2 pin):
2
SATA power cable length:
450, 150
Number of SATA power connectors:
6
Number of PATA power connectors:
2
Motherboard power cable length:
500 mm
Motherboard power connector: The way in which the motherboard is connected to the power supply.
20+4 pin ATX

Power

Power protection features: Features that protect the device against power problems e.g. overload.
Over current, Under voltage, Short circuit, Overheating, Over voltage, Over power
Efficiency:
87 %
Max output current (+5Vsb):
3 A
Max output current (-12V):
0.3 A
Max output current (+5V):
20 A
Max output current (+12V):
44 A
Max output current (+3.3V):
24 A
Combined power (+5Vsb):
15 W
Combined power (-12V):
3.6 W
Combined power (+5V):
120 W
Combined power (+12V):
528 W
Combined power (+3.3V):
120 W
Input current:
10 - 5
AC input frequency:
50/60
AC input voltage: The voltage of the AC electricity that is inputted into the product.
100 - 240
Total power: The total power that is needed by the device, or the total power produced by the device.
550 W

Description

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Customer reviews

Customer questions

FAQ

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

The price is 67.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 19 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 17.08.2026 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. We will assist with consultation, warranty claim processing, and coordination with certified service centers.

How can I tell if this product suits my needs?

When making a choice, we recommend paying attention to the key features: 80 plus certification, purpose, motherboard power connector, ac input voltage, total power, 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.
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