Montech APX550 power supply unit APX550

Name: Montech APX550 power supply unit APX550
Brand: Montech
SKU: 11675071
Price: 45.99 EUR
Availability: InStock

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Montech APX550 power supply unit 550 W 20+4 pin ATX ATX Black

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Short description

Montech APX550. Total power: 550 W, AC input voltage: 100 - 240 V, AC input frequency: 50/60 Hz. Motherboard power connector: 20+4 pin ATX. Purpose: PC, Power supply unit (PSU) form factor: ATX, 80 PLUS certification: 80 PLUS White. Product colour: Black, Fan diameter: 12 cm, Number of fans: 1 fan(s). Compliance certificates: CB, CE, EAC, Federal Communications Commission (FCC), RCM, RoHS, UKCA, cTUVus

Available at price 45.99 €: 14 pcs.

Total available for order: 28 pcs.

Warranty: 3 Years

SKU: 11675071

Manufacturer: Montech

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Deliver the order:

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to the Customer Service Center at Kengaraga 2b, Riga

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Customer service center

2b. Kengaraga str., Riga, Latvia, LV-1063

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From 4.99 € (Weight: 1.82 kg)

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Product information

Description

The Montech APX550 power supply unit delivers up to 550 W of continuous power in an ATX form factor designed for standard desktop PCs. It accepts a wide AC input range (100–240 V) with 50/60 Hz frequency compatibility and provides a 20+4 pin ATX motherboard connector. The unit comes in a black finish, includes a single 120 mm fan for thermal management, and holds 80 PLUS White certification for basic efficiency standards. Compliance certificates include CB, CE, EAC, FCC, RCM, RoHS, UKCA and cTUVus.

Advantages

The Montech APX550 combines a compact ATX design with a 550 W total power rating suitable for typical office, home and entry-level gaming systems. The broad AC input range supports international voltage standards, while the 20+4 pin ATX connector ensures compatibility with a wide range of motherboards. A single 120 mm fan provides active cooling without adding excessive noise, and the black exterior integrates unobtrusively into most PC builds. The 80 PLUS White certification verifies baseline energy efficiency and the listed safety and regulatory certificates confirm compliance with common regional requirements.

Suitable for

Office and home desktop computers
Entry-level or budget gaming builds
System upgrades where a reliable 550 W supply is required
Small form factor ATX cases that accept standard ATX PSUs

Key specifications

Total power: 550 W
AC input voltage: 100–240 V
AC input frequency: 50/60 Hz
Motherboard connector: 20+4 pin ATX
Form factor: ATX
Efficiency certification: 80 PLUS White
Cooling: 1 × 120 mm fan
Colour: Black
Compliance: CB, CE, EAC, FCC, RCM, RoHS, UKCA, cTUVus

How to use

Install the Montech APX550 into a compatible ATX PSU bay in your PC case, aligning screw holes and securing the unit with the supplied screws. Connect the 20+4 pin ATX connector to the motherboard main power socket, and attach any additional peripheral or CPU power connectors if present and required by your system. Ensure the AC mains cable is unplugged during installation. After all connections are secure, plug the AC cable into a properly grounded outlet and switch on the system while observing normal safety precautions.

Usage recommendations

For stable operation, match the Montech APX550 to systems whose combined component power draw remains comfortably below 550 W. Maintain adequate case airflow to complement the PSU's single 120 mm fan, and use a grounded power source or surge protector to reduce risk from voltage spikes. Periodically clean dust from the fan and vents to preserve cooling efficiency and prolong service life.

Specifications

Total power:: 550 W
Motherboard power connector:: 20+4 pin ATX
80 PLUS certification:: 80 PLUS White
Fan diameter:: 120 mm
Product colour:: Black

All features

Power

Total power:: 550 W
Power protection features:: Under voltage, Short circuit, Overheating, Over voltage, Over power, Over current
Combined power (+3.3V):: 100 W
Combined power (+12V):: 549.6 W
Combined power (+5V):: 100 W
Combined power (-12V):: 3.6 W
Combined power (+5Vsb):: 2.5 W
Max output current (+3.3V):: 18 A
Max output current (+12V):: 45.8 A
Max output current (+5V):: 18 A
Max output current (-12V):: 0.3 A
Input current:: 12
AC input frequency:: 50/60
AC input voltage:: 100 - 240

Ports & interfaces

Motherboard power connector:: 20+4 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

Performance

Purpose:: PC
80 PLUS certification:: 80 PLUS White
Bearing technology:: HDB
Power supply unit (PSU) form factor:: ATX

Design

Fan diameter:: 120 mm
Number of fans:: 1 fan(s)
Product colour:: Black

Certificates

Compliance certificates:: EAC, cTUVus, UKCA, RoHS, RCM, Federal Communications Commission (FCC), CE, CB

Weight & dimensions

Height:: 86 mm
Width:: 150 mm
Depth:: 140 mm

Operational conditions

Operating temperature (T-T):: 0 - 40

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Warehouse	Stock	Delivery to the store	Store Price
BT19	14	Tuesday Best delivery	45.99 € Best price
WH355	14	29.06.2026	63.99 €

45.99 €

Stock: 14

Delivery Date: Tuesday Best delivery

Warehouse: BT19

63.99 €

Stock: 14

Delivery Date: 29.06.2026

Warehouse: WH355

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Customer questions

FAQ

How much does the Montech APX550 power supply unit APX550 cost, and is it available for purchase?

The price is 45.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 28 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 Montech 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 Montech 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: 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.

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