MSI MAG A550BN Gaming Power Supply Unit, 80 Plus Bronze Certified Power Supply, 550 Watt, 12V Single-Rail, DC-to-DC Circuit, 120mm Fan, 5-Year Limited Warranty

Price: ₹6,600 - ₹4,049.00
(as of Oct 15, 2025 11:58:33 UTC – Details)

From the manufacturer

MSI: For Gamers & Creators

MSI is one of the most trusted names in gaming and esports with countless hours and significant resources invested into premier esports leagues and tier-1 gaming teams. By supporting and working with the best of the best, MSI is able to integrate competitive gaming knowledge and aspirations with technological innovation to create new products that shatter today’s performance limits.

MAG A550BN

Your Power, Right Away

MSI MAG power supplies are designed to provide a safe, reliable, and efficient foundation for PC systems with 80 PLUS Bronze-certified efficiency, DC-to-DC circuit design, 12V single rail, active PFC, and a low-noise fan.

For first-time DIY system builders, MSI MAG power supplies offer an excellent balance of quality & simplicity of design.

80 PLUS Bronze certified Active PFC design Industrial level protection with OVP, OCP, OPP, OTP, SCP DC-to-DC circuit design Quiet 120mm cooling fan

80 PLUS Bronze

The efficiency of a power supply directly influences system performance and power consumption.

An 80 PLUS Bronze certified rating means higher efficiency (up to 87%) and reduces internal thermal loading.

120mm Low Noise Fan

A 120mm sleeve bearing fan provides self-regulating cooling, while generating very little noise during operation.

DC-to-DC Circuit Design

A core DC-to-DC circuit design reduces output voltage instability to PC components.

Comprehensive Circuit Protection

A 12V single-rail design delivers stable output currents under heavy loading.

Includes an active PFC design (OCP, OVP, OPP, OTP, SCP protections).

Extensive Connectivity

Connect to multiple hard drives, SSDs, graphics cards and other components with a broad array of cables (non-modular).

Output Specifications

Robust internals support a wide range of AC inputs, while delivering stable output for high performance components.

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Customer Reviews

4.5 out of 5 stars 5,677

4.5 out of 5 stars 5,677

4.5 out of 5 stars 5,677

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Price

₹4,049.00₹4,049.00 ₹4,958.00₹4,958.00
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Form Factor
ATX ATX ATX ATX

Rated Wattage
550 Watts 650 Watts 750 Watts 850 Watts

Efficiency Rating
80 PLUS Bronze (up to 85%) 80 PLUS Bronze (up to 85%) 80 PLUS Gold (up to 90%) 80 PLUS Gold (up to 90%)

Input Voltage Range
100~240 VAC 100~240 VAC 100~240 VAC 100~240 VAC

Cooling
120 mm Sleeve Bearing fan 120 mm Sleeve Bearing fan 140 mm FDB fan 140 mm FDB fan

Protection
OCP / OVP / OPP / OTP / SCP OCP / OVP / OPP / OTP / SCP OCP / OVP / OPP / OTP / SCP / UVP OCP / OVP / OPP / OTP / SCP / UVP

Dimensions
150 x 140 x 86 mm 150 x 140 x 86 mm 150 x 160 x 86 mm 150 x 160 x 86 mm

Modular
No No Yes (fully modular) Yes (fully modular)

Accessories
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Cable bag Cable bag

80 PLUS BRONZE CERTIFICATION: This PSU Cooler has a bronze certification rating that ensures high efficiency, delivering more power with less energy consumption, resulting in lower energy bills and a more eco-friendly system.
550W POWER OUTPUT: This power output is perfect for gaming systems, providing ample power to handle demanding games & applications, even with multiple components running simultaneously. The adopted DC-DC circuit design reduces the instability of output voltage & adds stability to the power supply.
12V SINGLE Rail DESIGN: This design ensures stable, consistent power delivery to all components, preventing power fluctuations that could cause instability, crashes, or damage to sensitive components. It delivers stable currents even under heavy loading.
LOW NOISE: The 120mm fan provides efficient and quiet cooling, keeping the unit and other system components cool and reducing noise levels. Additionally, this PSU comes with a 5-year warranty ensuring quality and value for your money.
ADVANCED CIRCUIT DESIGN: The advanced circuit design and high-quality components ensure stable performance even under heavy loads, making this PSU a great choice for gamers and professionals alike.