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

**URL:** https://aio.lv/en/product--enermax-emp550w--11386088
**Data updated:** 2026-02-10 16:13 (EET)
**Category:** Power Supplies (PSU)
**Manufacturer:** ENERMAX
**Manufacturer code:** EMP550W
**EAN:** 4713157729101
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 47.99 €
**Prices and availability valid until:** 2026-07-14 23:59
**Price without VAT (21%):** 39.66 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--enermax-emp550w--11386088

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 01.07.2026 | free |
| Pickup points | 06.07.2026 | 1.99 EUR |
| Courier delivery to door | 06.07.2026 | 4.99 EUR |

## Summary 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.

## Long 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

### Power

| Feature | Value |
|---|---|
| Total power | 550 W |
| Power protection features | Over power, Over voltage, Under voltage |
| Combined power (+3.3V) | 100 W |
| Combined power (+12V) | 492 W |
| Combined power (+5V) | 100 W |
| Combined power (-12V) | 3.6 W |
| Combined power (+5Vsb) | 12.5 W |
| Max output current (+3.3V) | 15 A |
| Max output current (+12V) | 41 A |
| Max output current (+5V) | 15 A |
| Max output current (-12V) | 0.3 A |
| Max output current (+5Vsb) | 2.5 A |
| Input current | 5 |
| AC input frequency | 50/60 |
| AC input voltage | 200 - 240 |

### Ports & interfaces

| Feature | Value |
|---|---|
| Motherboard power connector | 20+4 pin ATX |
| PCI Express power connectors (6+2 pin) | 2 |
| Cabling type | Non-Modular |
| EPS power connector (4+4 pin) | Yes |

### Performance

| Feature | Value |
|---|---|
| Purpose | PC |
| 80 PLUS certification | 80 PLUS |
| Mean time between failures (MTBF) | 100000 h |

### Design

| Feature | Value |
|---|---|
| Fan diameter | 120 mm |
| Product colour | Black |

### Weight & dimensions

| Feature | Value |
|---|---|
| Height | 86 mm |
| Width | 150 mm |
| Depth | 140 mm |

## FAQ

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

The price is 47.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 154 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 01.07.2026 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 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. 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, motherboard power connector, 80 plus certification, fan diameter, 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.

## Image

https://aio.lv/img/cache/product/11386088/67044068_large.webp