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header-product Power supply unit ENERMAX EMP550W 550 W 20+4 pin ATX Non‑Modular Black
42.99 €

Power supply unit ENERMAX EMP550W 550 W 20+4 pin ATX Non‑Modular Black

Power supply ENERMAX EMP550W 550 W Photo 1
Power supply ENERMAX EMP550W 550 W Photo 2
Power supply ENERMAX EMP550W 550 W Photo 3
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Power supply ENERMAX EMP550W 550 W Photo 5
Power supply ENERMAX EMP550W 550 W Photo 6
Power supply ENERMAX EMP550W 550 W Photo 1
Power supply ENERMAX EMP550W 550 W Photo 2
Power supply ENERMAX EMP550W 550 W Photo 3
Power supply ENERMAX EMP550W 550 W Photo 4
Power supply ENERMAX EMP550W 550 W Photo 5
Power supply ENERMAX EMP550W 550 W Photo 6
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Power supply unit ENERMAX EMP550W 550 W 20+4 pin ATX Non‑Modular Black

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Power supply unit ENERMAX EMP550W 550 W 20+4 pin ATX Non‑Modular Black

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Short description

ENERMAX EMP550W is a 550 W non-modular ATX power supply designed for desktop PCs. It supports 20+4 pin motherboard connection, operates from 200–240 V AC at 50/60 Hz and has 80 PLUS efficiency certification. Features a 120 mm cooling fan, MTBF ~100,000 h and compact dimensions (150 × 140 × 86 mm) in black finish.
Available at price 42.99 €: 5 pcs.
Total available for order: 46 pcs.
Warranty: 2 Years
SKU: 11386088
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
15.10.2026 {{selectedOffer.officeDeliveryString}}
free
Courier Delivery Please note that in case of a large parcel additional delivery costs may apply!
20.10.2026 {{selectedOffer.courierDeliveryString}}
From 4.99 € (Weight: 3.78 kg)
Parcel couriers
Unisend LV / Venipak Pickup LV / Venipak Locker LV / DPD Paku skapis / Omniva LV / Latvijas Pasts pakomāts / Latvijas Pasts nodaļa
20.10.2026 {{selectedOffer.parcelStationDeliveryString}}
From 1.99 €
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Payment Methods:
Bank transfer, Bank cards on-line, Apple Pay, Google Pay
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Product information

Description

The ENERMAX EMP550W is a 550 W non-modular ATX power supply designed for desktop PCs. It supports a 20+4 pin ATX motherboard connector and operates on 200–240 V AC at 50/60 Hz. The unit is 80 PLUS 230V EU certified and includes a 120 mm cooling fan in a compact black housing.

Advantages

This power supply meets the 80 PLUS 230V EU standard, delivering up to 85% efficiency at 50% load. It uses a Japanese primary capacitor to improve component lifespan and is built with comprehensive industrial-grade protection circuitry to safeguard connected components. Non-modular mesh-sleeved cables simplify cable management while improving airflow and interior appearance. The unit is ErP-ready with standby power consumption below 0.5 W when used with compatible motherboards.

Suitable for

  • Entry-level and mid-range desktop gaming PCs
  • Home and office desktop systems requiring reliable 550 W power
  • PC builds where compact PSU size and tidy cable routing are important

Key specifications

  • Total output power: 550 W
  • Input voltage: 200–240 V AC, 50/60 Hz
  • Efficiency certification: 80 PLUS 230V EU (up to 85% at 50% load)
  • Cooling: 120 mm fan
  • Connector: 20+4 pin ATX motherboard connector
  • Form factor: ATX non-modular
  • Colour: Black
  • Typical MTBF: ~100,000 hours
  • Dimensions (approx.): 150 × 140 × 86 mm

How to use

Install the ENERMAX EMP550W into a compatible ATX case, align and secure the unit with screws, then connect the 20+4 pin ATX cable to the motherboard. Attach the necessary peripheral and CPU power connectors from the PSU to the system components. Ensure the input voltage selector (if present) and mains wiring match the local supply and that the case offers adequate ventilation for the 120 mm fan.

Usage recommendations

For stable operation, use this 550 W PSU with systems whose total power draw stays below the rated output, and allow clearance for airflow around the PSU. When building or upgrading, verify connector compatibility and enable ErP settings on compatible motherboards to achieve low standby consumption.

Specifications

80 PLUS certification:
80 PLUS
Purpose: What the product is used for.
PC
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.
200 - 240
Total power: The total power that is needed by the device, or the total power produced by the device.
550 W
All features

Weight & dimensions

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

Design

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
Product colour: The colour e.g. red, blue, green, black, white.
Black

Performance

Mean time between failures (MTBF): Statistical model used to indicate product/mechanism reliability; expressed in hours and percentage of duty cycle. This number (in hours) does not indicate the mean time before failure for a single unit/mechanism.
100000 h
80 PLUS certification:
80 PLUS
Purpose: What the product is used for.
PC

Ports & interfaces

Cabling type:
Non-Modular
PCI Express power connectors (6+2 pin):
2
EPS power connector (4+4 pin):
Yes
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.
Under voltage, Over voltage, Over power
Max output current (+5Vsb):
2.5 A
Max output current (-12V):
0.3 A
Max output current (+5V):
15 A
Max output current (+12V):
41 A
Max output current (+3.3V):
15 A
Combined power (+5Vsb):
12.5 W
Combined power (-12V):
3.6 W
Combined power (+5V):
100 W
Combined power (+12V):
492 W
Combined power (+3.3V):
100 W
Input current:
5
AC input frequency:
50/60
AC input voltage: The voltage of the AC electricity that is inputted into the product.
200 - 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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Stock data
Warehouse Stock Delivery to the store Store Price
EU16 5 15.10.2026 Best delivery
42.99 € Best price
EU3 13 15.10.2026 Best delivery
47.49 €
WH357 13 15.10.2026 Best delivery
50.99 €
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Available only for legal entities
Warehouse Stock Delivery to the store Store Price
WH109 2 29.10.2026
53.49 €
42.99 €
Stock: 5
Delivery Date: 15.10.2026 Best delivery
Warehouse: EU16
47.49 €
Stock: 13
Delivery Date: 15.10.2026 Best delivery
Warehouse: EU3
50.99 €
Stock: 13
Delivery Date: 15.10.2026 Best delivery
Warehouse: WH357
51.49 €
Stock: 13
Delivery Date: 15.10.2026 Best delivery
Warehouse: WH320
Available only for legal entities
53.49 €
Stock: 2
Delivery Date: 29.10.2026
Warehouse: WH109

Customer reviews

Customer questions

FAQ

How much does the Power supply ENERMAX EMP550W 550 W cost, and is it available for purchase?

The price is 42.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 46 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 15.10.2026 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 ENERMAX 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 ENERMAX 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.
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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Fast Delivery Get your orders as quickly as possible — right to your door, parcel lockers, or pickup points across Latvia and the EU.
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Secure Payment Pay the way you prefer: cash, VISA, MasterCard, Apple Pay, Google Pay, bank transfer, or 0% installment plan.
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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.