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MSI MAG A550BN

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MSI MAG A550BN Review & Specifications

The MSI MAG A550BN by MSI is a power supply unit that provides 550 watts of power output. This unit follows the 2.3 standard and comes in a ATX size. It is certified with 80 PLUS® Standard and rated at Bronze efficiency, reaching a peak efficiency of 85%. It features a 120 mm cooling fan , and is actively cooled. This PSU is non-modular . It delivers:

  • 45 A on the 12V rail (1 rail(s))
  • 20 A on the 5V rail
  • 20 A on the 3.3V rail
Operating at 100-240 V input, it includes a 5-year warranty. Physical dimensions are 150 x 140 x 86 mm.

Power Supply Performance

The MSI MAG A550BN is a mid-range power supply, suitable for mainstream gaming builds and entry-level workstation setups. It offers enough capacity for systems using efficient CPUs and mid-tier graphics cards, striking a good balance between efficiency and power needs.

This PSU offers a mid-range efficiency of 85%, suitable for entry-level to mid-tier systems. It may have a shorter warranty, but it still provides acceptable performance and value for standard computing needs.

This PSU delivers excellent value, with a competitive cost of only $87.3 per kilowatt. While it may not offer high-end performance, it is still recommended at this price point due to its outstanding cost-effectiveness and suitability for entry-level or low-power systems.

General Information

ManufacturerMSI
Power Supply NameMSI MAG A550BN
Current Price Amazon $48❗N/A
Amazon Price Updated 1 week, 5 days ago.
Power Supply AvailableFalse

Specification

Power Output550 W
ATX Version / Form Factor2.3 / ATX
Certifications80 PLUS® Standard
Efficiency RatingBronze
Modular / FanlessFalse / False
Fan Size / Fan Stop120 mm / False
Dimensions150 x 140 x 86 mm
Warranty5 years

Performance

Input Voltage100-240 V
Number of 12 V Rails1
Output 12V / 5V / 3.3V 45 A / 20 A / 20 A
Maximum Efficiency85%
Price per kW87.3 USD/kW

MSI MAG A550BN Compared to Similar Performance PSUs

Power Supply Price / Performance Table

Power_Supply (Desc) Price (Desc) Quality_&_Perf (Desc) Q&P/Price (Desc) USD/Kilowatt (Desc)
Thermaltake Smart BM3 650W 80Plus Bronz…
$80 | ↑ 33.3%
57.2%
71.5%
123.1
123.1
Thermaltake Smart BX1 650W Bronze
$120 | ↑ 100.0%
57.2%
47.6%
184.6
184.6
be quiet! System Power 11 550W
$150 | ↑ 0.0%
56.6%
37.7%
272.8
272.8
CORSAIR CX550
$69 | ↓ -1.4%
56.2%
81.5%
125.5
125.5
Thermaltake SMART 600W ATX 12V V2.3/EPS
$43 | 0.0%
55.3%
128.6%
79.6
79.6
MSI MAG A550BN
$48 | 0.0%
55.1%
114.9%
87.3
87.3
Thermaltake Smart BX3 550W 80Plus Bronz…
$64 | 0.0%
55.1%
86.3%
116.1
116.1
Thermaltake Smart 500W
$40 | 0.0%
52.5%
131.3%
95.2
95.2
MSI MAG A600DN
$46 | 0.0%
49.2%
106.9%
76.7
76.7

PSU Comparison and Detail Specifications Table

Specification
Thermaltake Smart BM3 650W 80Plus Bronze ATX 3.0 & PCIE 5.0
Thermaltake Smart BM3 650W 80…
Thermaltake Smart BX1 650W Bronze
Thermaltake Smart BX1 650W Br…
be quiet! System Power 11 550W
be quiet! System Power 11 550W
CORSAIR CX550
CORSAIR CX550
Thermaltake SMART 600W ATX 12V V2.3/EPS
Thermaltake SMART 600W ATX 12…
MSI MAG A550BN
MSI MAG A550BN
Thermaltake Smart BX3 550W 80Plus Bronze ATX 3.1
Thermaltake Smart BX3 550W 80…
Thermaltake Smart 500W
Thermaltake Smart 500W
MSI MAG A600DN
MSI MAG A600DN
Perf Chart
Price
$80 ↑ 33.3%
$120❗ ↑ 100.0%
$150 ↑ 0.0%
$69 ↓ -1.4%
$43 0.0%
$48❗ 0.0%
$64❗ 0.0%
$40 0.0%
$46❗ 0.0%
Price per kW 123.1 USD/kW 184.6 USD/kW 272.8 USD/kW 125.5 USD/kW 79.6 USD/kW 87.3 USD/kW 116.1 USD/kW 95.2 USD/kW 76.7 USD/kW
Manufacturer Thermaltake Thermaltake Technology Co., Ltd be quiet! Corsair Thermaltake USA Direct MSI Thermaltake Thermaltake USA Direct MSI
Wattage 650 W 650 W 550 W 550 W 540 W 550 W 550 W 420 W 600 W
Ver. / FF 3.0 / ATX 2.3 / ATX 3.1 / ATX 2.3 / ATX 2.3 / ATX 2.3 / ATX 3.1 / ATX 2.3 / ATX 2.3 / ATX
Efficiency Bronze (85%) Bronze (85%) Bronze (89%) Gold (88%) 80 PLUS (86%) Bronze (85%) Bronze (85%) 80 PLUS (85%) 80 PLUS (81%)
12V Rails 1 / 54 A 1 / 54 A 1 / 46 A 1 / 44 A 1 / 42 A 1 / 45 A 1 / 46 A 1 / 35 A 2 / 25 A
12V/5V/3.3V 54 A / 18 A / 18 A 54 A / 20 A / 20 A 45 A / 20 A / 20 A 44 A / 20 A / 24 A 42 A / 17 A / 22 A 45 A / 20 A / 20 A 46 A / 16 A / 16 A 35 A / 15 A / 20 A 50 A / 14 A / 14 A
Fan Size 120 mm 140 mm 120 mm 120 mm 120 mm 120 mm 120 mm 120 mm 120 mm
Modular ✔️ ✔️
Fan Stop ✔️ ✔️
Fanless
Dimensions 150mm(W)x86mm(H)x140mm(D) 150mm(W) x 86mm(H) x 160mm(D) 150 x 140 x 86 mm 4.92 x 5.91 x 3.39 inches 150 x 85 x 140 mm 150 x 140 x 86 mm 150mm(W)x86mm(H)x140mm(D) 150 x 85 x 140 mm 150mm x 140mm x 86mm
Warranty 5 years 5 years 5 years 5 years 5 years 5 years 5 years 5 years 3 years

Power Supply Specification Table

Power_Supply (Desc) Wattage (Desc) ATX Ver / FF / Modular Efficiency 12V Rails / Amp Output 12V/5V/3.3V Warranty
Thermaltake Smart BM3 650W 80Plus Bronz…
650 W 3.0 / ATX / True Bronze, 85% 1 / 54.00 A 54 A / 18 A / 18 A 5 years
Thermaltake Smart BX1 650W Bronze
650 W 2.3 / ATX / True Bronze, 85% 1 / 54.00 A 54 A / 20 A / 20 A 5 years
be quiet! System Power 11 550W
550 W 3.1 / ATX / False Bronze, 89% 1 / 45.83 A 45 A / 20 A / 20 A 5 years
CORSAIR CX550
550 W 2.3 / ATX / False Gold, 88% 1 / 44.00 A 44 A / 20 A / 24 A 5 years
Thermaltake SMART 600W ATX 12V V2.3/EPS
540 W 2.3 / ATX / False 80 PLUS, 86% 1 / 42.00 A 42 A / 17 A / 22 A 5 years
MSI MAG A550BN
550 W 2.3 / ATX / False Bronze, 85% 1 / 45.00 A 45 A / 20 A / 20 A 5 years
Thermaltake Smart BX3 550W 80Plus Bronz…
550 W 3.1 / ATX / False Bronze, 85% 1 / 46.00 A 46 A / 16 A / 16 A 5 years
Thermaltake Smart 500W
420 W 2.3 / ATX / False 80 PLUS, 85% 1 / 35.00 A 35 A / 15 A / 20 A 5 years
MSI MAG A600DN
600 W 2.3 / ATX / False 80 PLUS, 81% 2 / 25.00 A 50 A / 14 A / 14 A 3 years


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