# Power Supply Unit Cooler Master MWE 550 White 550W

**URL:** https://aio.lv/en/product--cooler-master-mpe-5501-acabw-eu--2121079
**Data updated:** 2025-12-01 16:58 (EET)
**Category:** Power Supplies (PSU)
**Manufacturer:** Cooler Master
**Manufacturer code:** MPE-5501-ACABW-EU
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 51.99 €
**Prices and availability valid until:** 2026-07-21 23:59
**Price without VAT (21%):** 42.97 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--cooler-master-mpe-5501-acabw-eu--2121079

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 09.07.2026 | free |
| Pickup points | 14.07.2026 | 1.89 EUR |
| Courier delivery to door | 14.07.2026 | 4.99 EUR |

## Summary description

The Cooler Master MWE 550 White 230V - V2 is a reliable 550W power supply unit designed for PCs. It features a 24-pin ATX connector, active cooling with a 12 cm fan, and is certified with 80 PLUS for energy efficiency. With an AC input voltage range of 200-240V and a frequency of 50-60Hz, it ensures stable performance. The PSU includes SATA power cables of varying lengths (400, 550, 700 mm) and a motherboard power cable length of 50 cm, making it versatile for different setups.

## Long description

The MWE 550 WHITE 230V - V2 is a 550W ATX power supply with 80 PLUS Standard 230V EU certification, designed to provide reliable core power for desktop systems. It features a single +12V rail, DC-to-DC + LLC circuit design, active PFC and a thermally controlled 120mm HDB fan. The unit also includes a silent mode for low-load operation and flat black cables to simplify cable management and preserve airflow in compact builds.
Advantages
The power supply delivers consistent power through a single +12V rail, reducing variance between connectors. Its DC-to-DC + LLC topology ensures stable 3.3V and 5V outputs with low ripple, while the 80 PLUS Standard rating provides typical efficiency around 85%. A temperature-sensitive 120mm HDB fan and a built-in silent mode minimize noise during light use. Flat black cables improve routing and aesthetic integration in modern PC cases.
Key specifications
Model: MWE 550 WHITE 230V - V2
Power: 550 W
Efficiency certification: 80 PLUS Standard 230V EU (typical ~85%)
Rail design: Single +12V rail
Topology: DC-to-DC + LLC (Dual Forward layout)
Fan: 120mm HDB, thermally controlled, silent mode
Cables: Flat black flexible cables
Features: Active PFC
How to use
Install the PSU into a compatible ATX case, secure it with the provided screws and connect the main 24-pin ATX connector to the motherboard. Attach the 4/8‑pin CPU power connector and PCIe, SATA and peripheral connectors as required by your components. Ensure adequate ventilation around the unit; the 120mm fan operates automatically based on temperature and load, and silent mode will keep the fan off at low wattage. Verify all connections before powering on the system.
Recommendations
For reliable operation, pair the MWE 550 WHITE with systems whose total power draw under load stays comfortably below 550 W. Use proper cable routing to maintain case airflow and avoid obstructing the fan intake. Regularly inspect connectors for secure seating and ensure the PSU receives adequate case ventilation.

## Specifications

### Power

| Feature | Value |
|---|---|
| Total power | 550 W |
| Efficiency | 85 % |
| Power Factor Correction (PFC) type | Active |
| Hold time | 14 ms |
| Power protection features | Over power, Over voltage, Overheating, Short circuit, Under voltage |
| Combined power (+3.3V) | 110 W |
| Combined power (+12V) | 540 W |
| Combined power (+5V) | 110 W |
| Combined power (-12V) | 3.6 W |
| Combined power (+5Vsb) | 15 W |
| Max output current (+3.3V) | 17 A |
| Max output current (+12V) | 45 A |
| Max output current (+5V) | 17 A |
| Max output current (-12V) | 0.3 A |
| Max output current (+5Vsb) | 3 A |
| Input current | 5 |
| AC input frequency | 50 - 60 |
| AC input voltage | 200 - 240 |
| Power Good signal delay range | 100 - 500 |

### Ports & interfaces

| Feature | Value |
|---|---|
| Motherboard power connector | 24-pin ATX |
| Number of SATA power connectors | 6 |
| Peripheral (Molex) power connectors (4-pin) | 3 |
| CPU power connector (4+4 pin) | Yes |
| PCI Express power connectors (6+2 pin) | 2 |
| Cabling type | Non-Modular |
| Motherboard power cable length | 500 mm |
| SATA power cable length | 550, 400, 700 |
| CPU power cable length | 550 mm |
| Peripheral (Molex) power cable length | 700, 400, 550 |
| PCI Express power cable length | 600 mm |

### Performance

| Feature | Value |
|---|---|
| Purpose | PC |
| 80 PLUS certification | 80 PLUS |
| Mean time between failures (MTBF) | 100000 h |
| Bearing technology | HDB |
| ATX version | 2.52 |
| Supported motherboard form factors | ATX |
| Power supply unit (PSU) form factor | ATX |

### Design

| Feature | Value |
|---|---|
| Fan diameter | 120 mm |
| Number of fans | 1 fan(s) |
| Cooling type | Active |
| Fan speed | 0 - 1500 |
| Product colour | Black |

### Certificates

| Feature | Value |
|---|---|
| Certification | CCC, CE, TUV-RH, EAC, RCM, cTUVus, FCC, BSMI, KC, CB |

### Weight & dimensions

| Feature | Value |
|---|---|
| Weight | 1.375 kg |
| Height | 86 mm |
| Width | 150 mm |
| Depth | 140 mm |

### Operational conditions

| Feature | Value |
|---|---|
| Operating temperature (T-T) | 0 - 40 |

### Packaging data

| Feature | Value |
|---|---|
| Package weight | 1773 g |
| Package depth | 245 mm |
| Package height | 110 mm |
| Package width | 190 mm |
| Package type | Box |

### Other features

| Feature | Value |
|---|---|
| Noise level (quiet mode, 50%) | 18.4 dB |
| Noise level (full-load mode, 100%) | 31.2 dB |
| Noise level (silent mode, | 13.8 dB |

### Logistics data

| Feature | Value |
|---|---|
| Products per pallet | 32 pc(s) |
| Master (outer) case height | 215 mm |
| Master (outer) case width | 260 mm |
| Master (outer) case length | 570 mm |
| Products per master (outer) case | 5 pc(s) |
| Harmonized System (HS) code | 84733020 |

## FAQ

### How much does the Power Supply Cooler Master MWE 550 White cost, and is it available for purchase?

The price is 51.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 10 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 09.07.2026 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 Cooler Master 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 Cooler Master 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 Power Supply Cooler Master MWE 550 White?

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/2121079/64782369_large.webp