# Power supply unit MSI MAG A550BN 550W ATX, 80 PLUS Bronze, 120 mm fan, Active PFC

**URL:** https://aio.lv/en/product--msi-306-7zp2a11-ce0--4317036
**Data updated:** 2026-01-21 10:56 (EET)
**Category:** Power Supplies (PSU)
**Manufacturer:** MSI
**Manufacturer code:** 306-7ZP2A11-CE0
**EAN:** 4719072849603
**Warranty:** 5 Years
**Availability:** Available for order
**Price:** 48.99 €
**Prices and availability valid until:** 2026-07-17 23:59
**Price without VAT (21%):** 40.49 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--msi-306-7zp2a11-ce0--4317036

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 25.06.2026 | free |
| Pickup points | 30.06.2026 | 1.99 EUR |
| Courier delivery to door | 30.06.2026 | 4.99 EUR |

## Summary description

MSI MAG A550BN is a 550 W ATX power supply for desktop PCs with 80 PLUS Bronze efficiency and Active Power Factor Correction. It features a 120 mm cooling fan, universal 100–240 V AC input, OTP protection and multiple rails (±12V, +5V, +3.3V) with specified output currents. Suitable for mid-range systems requiring stable power delivery.

## Long description

MAG A550BN is an entry-level computer power supply designed to offer reliable and efficient performance for gamers building their first DIY systems. The unit features 80 PLUS Bronze certification, a DC-to-DC circuit design, a 12V single rail, active PFC, and a low-noise 120 mm fan, delivering stable power without requiring additional configuration after installation.
Advantages
80 PLUS Bronze certification improves energy efficiency and reduces power consumption. The DC-to-DC circuit design enhances output voltage stability. A 120 mm sleeve-bearing fan provides effective cooling with reduced noise. Built-in protections (OCP, OVP, SCP, OPP, OTP) safeguard components, and a 5-year limited warranty ensures long-term reliability.
Key specifications
Certification: 80 PLUS Bronze
Design: DC-to-DC circuit
Rail: 12V single rail
Power factor correction: Active PFC
Cooling: 120 mm low-noise fan (sleeve bearing)
Protections: OCP, OVP, SCP, OPP, OTP
Warranty: 5-year limited warranty
How to use
Install the MAG A550BN into a compatible PC case, connect the main 24-pin ATX and CPU/EPS power connectors to the motherboard, and attach required peripheral and GPU power cables. Ensure proper cable routing for airflow and verify all connections before powering on. No additional software or configuration is required for standard operation.
Recommendations
For optimal performance, use the MAG A550BN with systems whose total power draw remains within the unit’s rated capacity. Maintain adequate case ventilation and periodically check the fan and dust filters to preserve cooling efficiency and reduce noise.

## Specifications

### Power

| Feature | Value |
|---|---|
| Total power | 550 W |
| Efficiency | 85 % |
| Power Factor Correction (PFC) type | Active |
| Power protection features | Over current, Over power, Over voltage, Short circuit, Overheating |
| Combined power (+3.3V) | 110 W |
| Combined power (+12V) | 546 W |
| Combined power (+5V) | 110 W |
| Combined power (-12V) | 3.6 W |
| Combined power (+5Vsb) | 12.5 W |
| Max output current (+3.3V) | 20 A |
| Max output current (+12V) | 45.5 A |
| Max output current (+5V) | 20 A |
| Max output current (-12V) | 0.3 A |
| Max output current (+5Vsb) | 2.5 A |
| AC input frequency | 50 - 60 |
| AC input voltage | 100 - 240 |
| Maximum input current (@110V) | 8 A |
| Maximum input current (@220V) | 4 A |

### Ports & interfaces

| Feature | Value |
|---|---|
| Motherboard power connector | 20+4 pin ATX |
| ATX Power connector (24-pin) | No |
| Number of SATA power connectors | 5 |
| Peripheral (Molex) power connectors (4-pin) | 2 |
| EPS power connector (8-pin) | No |
| ATX power connector (20+4 pin) | No |
| CPU power connector (4+4 pin) | Yes |
| PCI Express power connectors (6+2 pin) | 2 |
| Cabling type | Non-Modular |
| Motherboard power cable length | 600 mm |
| EPS power connector (4+4 pin) | Yes |

### Performance

| Feature | Value |
|---|---|
| Purpose | PC |
| 80 PLUS certification | 80 PLUS Bronze |
| Power supply unit (PSU) form factor | ATX |

### Design

| Feature | Value |
|---|---|
| Fan diameter | 120 mm |
| Number of fans | 1 fan(s) |
| Cooling type | Active |
| On/off switch | Yes |
| Product colour | Black |

### Weight & dimensions

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

### Logistics data

| Feature | Value |
|---|---|
| Harmonized System (HS) code | 84733020 |

## FAQ

### How much does the MSI MAG A550BN 550W ATX power supply cost, and is it available for purchase?

The price is 48.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 526 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 25.06.2026 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 MSI 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 MSI 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, 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 MSI MAG A550BN 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.

## Image

https://aio.lv/img/cache/product/4317036/64796270_large.webp