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header-product Mars Gaming MPB550SI Power Supply Unit 550 W ATX 24-pin 80 PLUS Bronze Black Non-Modular
41.49 €

Mars Gaming MPB550SI Power Supply Unit 550 W ATX 24-pin 80 PLUS Bronze Black Non-Modular

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Mars Gaming MPB550SI 550W Power Supply Unit Photo 1
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Mars Gaming MPB550SI 550W Power Supply Unit Photo 9
Mars Gaming MPB550SI 550W Power Supply Unit Photo 1
Mars Gaming MPB550SI 550W Power Supply Unit Photo 2
Mars Gaming MPB550SI 550W Power Supply Unit Photo 3
Mars Gaming MPB550SI 550W Power Supply Unit Photo 4
Mars Gaming MPB550SI 550W Power Supply Unit Photo 5
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Mars Gaming MPB550SI 550W Power Supply Unit Photo 8
Mars Gaming MPB550SI 550W Power Supply Unit Photo 9
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Short description

Mars Gaming MPB550SI power supply unit delivers 550 W of total power for PC systems. It features an ATX form factor, non-modular cabling, and 80 PLUS Bronze certification for efficient energy usage. Equipped with an active cooling system and a 12 cm fan, it ensures stable and reliable performance. Ideal for standard desktop computer builds requiring consistent power delivery.
Available for order: 2 pcs.
Warranty: 2 Years
SKU: 11476357
free shipment

Cheapest delivery:

Unisend LV

Pick-up points

Unisend LV

Cost

1.99 €

Deliver

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Customer service center
2b. Kengaraga str., Riga, Latvia, LV-1063
Tuesday {{selectedOffer.officeDeliveryString}}
free
Courier Delivery Please note that in case of a large parcel additional delivery costs may apply!
23.10.2026 {{selectedOffer.courierDeliveryString}}
From 4.99 € (Weight: 1.60 kg)
Parcel couriers
Unisend LV / Venipak Pickup LV / Venipak Locker LV / DPD Paku skapis / Omniva LV / Latvijas Pasts pakomāts / Latvijas Pasts nodaļa
23.10.2026 {{selectedOffer.parcelStationDeliveryString}}
From 1.99 €
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Product information

Description

The Mars Gaming MPB550SI Power Supply Unit 550 W ATX 24-pin 80 PLUS Bronze Black Non-Modular delivers reliable and stable power for desktop computer builds. Designed to provide 550 watts of total power, this unit features an ATX form factor, non-modular cabling, and 80 PLUS Bronze certification to ensure efficient energy usage during daily operation. Equipped with an active cooling system featuring a 12 cm fan, it maintains optimal operating temperatures while supporting standard PC configurations.

Advantages

This power supply utilizes advanced DC-DC conversion technology alongside SMD manufacturing to enhance overall durability and deliver precise voltage regulation. The integrated active cooling system uses a 12 cm fan paired with intelligent AI2-RPM control, which adjusts fan speed dynamically to balance effective heat dissipation with quiet operation. Energy efficiency is supported by the 80 PLUS Bronze certification, helping to minimize power loss. Additionally, the inclusion of standard connectors such as the 24-pin ATX motherboard connector and peripheral Molex connectors ensures broad compatibility with standard PC hardware components.

Suitable for

  • Standard desktop computer builds and upgrades
  • Office and home productivity PC systems
  • Configurations requiring a reliable ATX form factor power supply
  • Systems utilizing 220 - 240 V AC input voltage

When it may not be suitable

This power supply unit may not be suitable for high-end gaming rigs or workstation builds that demand exceptionally high wattage outputs exceeding 550 watts. Furthermore, users who prefer a modular cable management system to reduce unused cables inside the PC case may find the non-modular design less ideal for compact builds.

Key specifications

  • Total power: 550 W
  • Form factor: ATX
  • 80 PLUS certification: 80 PLUS Bronze
  • AC input voltage: 220 - 240 V
  • Cooling type: Active with 12 cm fan
  • Motherboard power connector: 24-pin ATX
  • Peripheral Molex power connectors: 2
  • Cabling type: Non-Modular

How to use

Begin by ensuring your computer system is powered off and disconnected from the main electrical outlet. Open your PC case and mount the power supply unit securely into the designated bay using standard screws. Connect the 24-pin ATX cable to the corresponding port on your motherboard and attach any necessary peripheral cables to your hardware components. Double-check all connections to ensure they are secure before plugging the power cord into a 220 - 240 V wall outlet and turning on the system.

What to consider before purchase

  • Verify that the 550-watt capacity is sufficient for your PC components and total system load
  • Check that your computer case supports the standard ATX power supply dimensions
  • Confirm compatibility with your motherboard and internal hardware connectors
  • Consider whether non-modular cabling fits your cable management preferences
Usage recommendations: Install the power supply in a well-ventilated PC case to ensure unobstructed airflow around the 12 cm fan. Avoid exposing the unit to excessive moisture or dust, and periodically check that internal cables are properly organized to maintain optimal cooling performance.

Specifications

80 PLUS certification:
80 PLUS Bronze
Power supply unit (PSU) form factor:
ATX
Purpose: What the product is used for.
PC
Peripheral (Molex) power connectors (4-pin): White 4-pinned connector used to connect a peripheral to the power supply.
2
Motherboard power connector: The way in which the motherboard is connected to the power supply.
24-pin ATX
AC input voltage: The voltage of the AC electricity that is inputted into the product.
220 - 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 weight: Weight of the packaged product.
1596 g
Package height: The distance from the top to the bottom of the packaging.
125 mm
Package depth: The distance from the front to the back of the packaging.
240 mm
Package width: The distance from one side of the packaging to the other.
205 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.
1.4 kg
Height: The measurement of the product from head to foot or from base to top.
85 mm
Depth: The distance from the front to the back of something.
145 mm
Width: The measurement or extent of something from side to side.
150 mm

Certificates

Certification:
CE, RoHS

Design

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

Noise level: The amplitude level of the undesired background noise, usually measured in decibels (db).
12 dB
80 PLUS certification:
80 PLUS Bronze
Power supply unit (PSU) form factor:
ATX
Purpose: What the product is used for.
PC

Ports & interfaces

Cabling type:
Non-Modular
CPU power connector (4+4 pin):
Yes
PCI Express power connectors (6+2 pin):
1
Peripheral (Molex) power connectors (4-pin): White 4-pinned connector used to connect a peripheral to the power supply.
2
Number of SATA power connectors:
4
Motherboard power connector: The way in which the motherboard is connected to the power supply.
24-pin ATX

Power

Power protection features: Features that protect the device against power problems e.g. overload.
Under voltage, Short circuit, Over current, Over power, Over voltage
Efficiency:
90 %
Max output current (+5Vsb):
2.5 A
Max output current (-12V):
0.3 A
Max output current (+5V):
18 A
Max output current (+12V):
45.5 A
Max output current (+3.3V):
18 A
Combined power (+5Vsb):
12.5 W
Combined power (-12V):
3.6 W
Combined power (+5V):
100 W
Combined power (+12V):
546 W
Combined power (+3.3V):
100 W
Power Factor Correction (PFC) type:
Active
Input current:
5
AC input frequency:
47 - 63
AC input voltage: The voltage of the AC electricity that is inputted into the product.
220 - 240
Total power: The total power that is needed by the device, or the total power produced by the device.
550 W

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Customer reviews

Customer questions

FAQ

How much does the Mars Gaming MPB550SI 550W Power Supply Unit cost, and is it available for purchase?

The price is 41.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 2 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 Tuesday 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 mars gaming 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 mars gaming 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, power supply unit (psu) form factor, purpose, peripheral (molex) power connectors (4-pin), 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 Mars Gaming MPB550SI 550W Power Supply Unit?

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.
warranty
14-Day Return Policy We are confident in our quality, but if the purchase doesn’t fit — you have 14 days to return the product with peace of mind.
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Quality Since 2008 AiO.lv has been on the market for over 18 years and has earned trust — with more than 6000 genuine positive reviews on Google.