SKU: 50552186313

MSI MAG A550BN 550W 80+ Bronze ATX Power Supply

$476.10 $529.00
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Ships within 48 hours · Estimated delivery Jul 30 - Aug 4

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Description

MSI MAG A550BN 550W 80+ Bronze ATX Power SupplyQuick Specs Provides 550W of reliable power for gaming and everyday use. Offers 80 PLUS Bronze certification for up to 85% energy efficiency. Keeps your system safe with OCP, OVP, OPP, OTP, and SCP protection. Maintains quiet operation with a 120mm sleeve bearing fan. Ensures broad compatibility with essential connectors including ATX, EPS, and PCIe. Reliable Power for Your Gaming Rig Powering your gaming PC with a dependable PC power supply is

Quick Specs

Provides 550W of reliable power for gaming and everyday use.
Offers 80 PLUS Bronze certification for up to 85% energy efficiency.
Keeps your system safe with OCP, OVP, OPP, OTP, and SCP protection.
Maintains quiet operation with a 120mm sleeve bearing fan.
Ensures broad compatibility with essential connectors including ATX, EPS, and PCIe.

Reliable Power for Your Gaming Rig

Powering your gaming PC with a dependable PC power supply is critical for smooth component operation during intense gaming. The MSI MAG A550BN provides stable and efficient power, serving as a solid foundation for any gaming build.

80 PLUS Bronze Certification

The 80 PLUS Bronze certification ensures up to 85% energy efficiency, reducing heat and electricity costs while extending the power supply's lifespan for long-term reliability. This makes it an efficient computer power supply choice.

Comprehensive Protection Features

Protect your valuable components with comprehensive protection. The MAG A550BN includes OCP, OVP, OPP, OTP, and SCP, safeguarding your system from potential damage and ensuring stable computer power supply performance.

Silent and Efficient Cooling

The 120 mm sleeve bearing fan delivers excellent cooling performance quietly, keeping the power supply cool under heavy loads without distracting fan noise, allowing you to focus on your game. Its design is optimised for efficient PC power supply cooling.

Durable and Reliable Design

Built with high-quality components, the MSI MAG A550BN ensures stable power delivery, minimizing system instability and ensuring reliable operation for years. This computer power supply is a long-term investment in your gaming setup.

Wide Compatibility and Easy Installation

The non-modular design simplifies installation and ensures compatibility with various PC cases. Featuring ATX, EPS, PCI-E, SATA, and Peripheral connectors, the MAG A550BN accommodates diverse components, making it ideal for different system configurations as a dependable computer power supply.

FEATURES:

80 Plus Bronze certified for high efficiency
120mm Low Noise Fan
Industrial-level protection with OVP, OCP, OPP, OTP, and SCP
DC-DC Circuit Design
Active PFC design

SPECIFICATIONS:

Efficiency Rating 80 PLUS Bronze (up to 85%)
Modular Non-modular
Fan Size 120 mm
Fan Bearing Sleeve Bearing
PFC Type Active PFC
Input Voltage Range 100~240 VAC
Power Watt 550W
Input Frequency Range 50~60 Hz
Protection OCP / OVP / OPP / OTP / SCP
Connectors ATX (24 pin): 1EPS (4+4 pin): 1PCI-E (6+2 pin): 2SATA (15 pin): 5PERIPHERAL (4 pin): 2FDD (4 pin): 2
ATX (24 pin) 1
EPS (4+4 pin) 1
PCI-E (6+2 pin) 2
SATA (15 pin) 5
PERIPHERAL (4 pin) 2
FDD (4 pin) 2
Product Dimensions 14 x 15 x 8.6 cm

WHAT'S IN THE BOX:

  • MSI MAG A550BN 550W 80 PLUS Bronze Non-modular ATX Power Supply x1

Why MSI?

MSI, a trusted name in gaming and PC components, offers quality and reliability with the MAG A550BN computer power supply. Designed for consistent performance and equipped with essential protection, this PSU ensures system stability and security. Choose MSI for a power supply that enhances your gaming experience.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 50552186313

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4.0 ★★★★★
Based on 5 reviews
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Product Reviews
R
Verified Purchase
Random shopper
Grantham, US
★★★★★ 1
Rope comes out at the slightest force. Pointless tug toy!
Color: Four colors, Size: 6cm (with rope)
If your dog pulls on these (and why wouldn’t he?), the rope immediately comes out. Turns out they just fuse the ends of the nylon rope together, which is no match for a dog playing tug. Any dog, any level of pulling will dismantle these. We’ve managed to reinsert the rope to a couple of these and KNOT it, which gives you a shorter rope but a toy that can withstand some play. But if I had wanted a DIY toy, I’d have used the balls and rope I already own.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 11, 2025
L
Verified Purchase
Lesly
Louisville, US
★★★★★ 3
Not for super chewers!
Color: Four colors, Size: 5cm (with rope), Color: Four colors, Size: 5cm (with rope)
These rope ball toys arrived today. My poodle puppy loves rope ball toys and playing tug of war. These didn’t last 10 minutes. For context, she is 1 y.o., 30 lbs., is not teething & has her adult teeth. She did this on her own- we were not playing tug of war at the time the toy fell apart. At least there are 3 more in the package & when the rope is done, we’ll still have the balls to play with.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 15, 2026
K
Verified Purchase
Kimberly Farnham
Port Orchard, US
★★★★★ 4
Great for small dogs
Color: Four colors, Size: 5cm (ball only)
Durability
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 28, 2026
O
Verified Purchase
OhThoseTervs
Belleville, US
★★★★★ 5
What I've been looking for
Size: Large (Pack of 1)
Just got my Nero Ball. Only used it once, but really like it. I've tried other "ball on a string" type toys, with unsatisfactory results. I'll be using it as a training reward, and my boy, who is a pretty ferocious tugger, is going to learn 2 new things with this ball. 1st, to target the ball instead of the rope, and 2nd, that it's for a little gentle tugging instead of the full throttle stuff he does otherwise. After our 1st session with the Nero Ball, he's picking up on the new rules quickly. We'll see how it does long term, but I think this is one I'll stay with. *UPDATE* Been using my Nero Ball for a month now. I'm tempted to call it the 'Hero Ball' because it's just that terrific!! For me, the key has been putting in the time to allow both myself & my dog to develop the skill to use this tool smoothly. May sound strange, but using a toy as a training reward requires practice, and each different toy configuration requires different handling. It's time well spent - we're both having a lot of fun! Kudos to the designer of this ball. Every detail has been carefully considered, from the length & material of the rope (just the right length that the dog won't step on it; material is easy on the hand while still being tough enough to withstand a few toothy grabs; the loop is the perfect size to grab for a little tug or to pass the ball through to slip-knot it onto a belt loop). The ball is also just right. The knobs make it non-slip, the rubber eliminates tennis ball fuzz concerns, and being semi-hard and hollow makes it slightly compress-able, which makes it a higher value reward than a solid ball that can't be compressed. While this ball will not work for every application or for every dog, if you carefully read & understand the information provided and don't expect it to work outside those parameters, you will be pleasantly surprised by a very well designed, well constructed tool that you can use to enhance your training or play sessions with your dog.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 27, 2016
L
Verified Purchase
LRG
Grantham, US
★★★★★ 5
Great Quality!
Size: Large (Pack of 1)
Great quality!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 4, 2026

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