MSI
MSI MAG A550BN 550W 80 Plus Bronze Non-Modular ATX Power Supply
In stock
SKU MAG A550BN
R 949,00
Or pay in up to 6 interest-free instalments from R 158,16 with Stitch Pay Later.
Courier delivery R180 (free on orders of R2 500 or more): 1–3 working days to Johannesburg, Pretoria, Cape Town, Durban and within 100km of them, 2–4 working days further out. Express 1–2 working days for R210 (R150 on orders of R2 500 or more).
| Delivering to | Time | Cost |
|---|---|---|
| Major centres: Johannesburg, Pretoria, Cape Town, Durban and within 100km of them | 1–3 working days | R180, free from R2 500 |
| More than 100km from a major centre | 2–4 working days | R180, free from R2 500 |
| Express delivery, anywhere | 1–2 working days | R210, R150 from R2 500 |
| Collect from Edenvale | When we tell you it’s ready | Free |
- Courier delivery is R180 on orders under R2 500 and free on orders of R2 500 or more. Choose express or collection at checkout.
- Times count from the day your order is dispatched. Orders placed before 12:00 on a working day ship the same day; after 12:00, on weekends or on public holidays they ship the next working day.
- Pre-built PCs and PC Builder builds need 2–4 extra working days to assemble and test before they ship.
- The area check is a guide based on your postal code, and delivery times are the courier’s estimates. Please make sure your address and postal code are correct — an incorrect address delays delivery.
- Full shipping policy
- Free courier delivery over R2 500 Anywhere in South Africa. R180 on orders under R2 500
- Official warranty Local South African warranty and support
- Expert help Talk to a builder before you buy
The entry rung of MSI's Bronze ladder: two 6+2-pin PCIe connectors and one CPU connector, which tells you exactly what it was designed to run.
Quick Specs
- 550W continuous output
- 80 PLUS Bronze certified, up to 85% efficiency
- Non-modular fixed cabling
- 1x EPS 4+4-pin CPU connector, 2x PCIe 6+2-pin
- 120 mm sleeve bearing fan
Who This Is Built For
550W is a budget gaming or office build: a Ryzen 5 or Core i5 with an RTX 5060, RX 9060 or similar 60-class card, one or two drives, nothing exotic. That combination sits comfortably under 400W in real use, so the supply spends its life in the efficient part of its curve. It is the wrong unit for anything higher. A single EPS connector rules out enthusiast motherboards that want two, and two 6+2-pin PCIe leads will not feed a card that asks for three. If your shortlist includes an RTX 5070 or above, start at the A650BN or A750BN instead.
The Non-Modular Trade-Off
Every cable is permanently attached. In a 550W build you will genuinely use the 24-pin, the CPU lead and probably one PCIe lead, leaving five SATA connectors, two Molex and an FDD lead to hide somewhere. In a case with a decent shroud and 20 mm of rear clearance that is a non-issue. In a compact chassis with a cramped cable channel it is an afternoon of coaxing. The upside is price: nothing here is paid for connector housings you will never plug into, and the full protection set is the same one MSI fits further up the range.
FEATURES:
- 80 PLUS Bronze efficiency for lower heat and running cost than an uncertified unit
- 120 mm fan sized for low-noise operation at typical budget-build loads
- Industrial protection set: OCP, OVP, OPP, OTP and SCP
- Compact 140 mm depth that clears cable routing in most mid-tower cases
- Fixed cabling keeps the purchase price down on entry builds
SPECIFICATIONS:
- Model: MSI MAG A550BN
- Maximum Output: 550W
- Efficiency: 80 PLUS Bronze, up to 85%
- Modularity: Non-modular
- Connectors: 1x ATX 24-pin, 1x EPS 4+4-pin, 2x PCIe 6+2-pin, 5x SATA 15-pin, 2x Peripheral 4-pin, 1x FDD 4-pin
- Fan: 120 mm, sleeve bearing
- Dimensions: 140 x 150 x 86 mm
- Protections: OCP / OVP / OPP / OTP / SCP
- Warranty: 5 Year
WHAT'S IN THE BOX:
- MSI MAG A550BN power supply with attached cabling
- AC power cord
- Mounting screws
- Documentation
Why MSI?
MSI fits the same five-way protection circuit to its entry Bronze units as to units several times the price, so a budget build is not a less protected one. The MAG A550BN is covered by a 5 year warranty.
Key details
| Wattage | 550 W |
|---|---|
| Efficiency | 80 Plus Bronze |
| Modularity | Non-Modular |
| PSU form factor | ATX |
| Category | Power Supplies |
| Brand | MSI |
| Warranty | 5 Years |
Questions
Before you buy
Is this enough power for my build?
It is a 550W supply rated 80 Plus Bronze. Add up what your parts need - the graphics card is usually the biggest single draw, and every card we sell lists its recommended system wattage - then leave headroom above that figure. A supply running at roughly half its rating is quieter and lasts longer than one held near its limit.
Is it modular?
It is Non-Modular. Fully modular means every cable unplugs, so you only fit the ones you need; semi-modular keeps the motherboard and CPU cables attached and makes the rest optional; non-modular has them all permanently fixed. It is a tidiness and airflow question rather than a performance one. Never reuse cables from a different supply - the pinouts differ between brands.
Is it in stock, and when will it ship?
Yes - this one is in stock. Order before 12:00 on a working day and it ships the same day; after that it goes out the next working day. We are open 09:00 to 16:30, Monday to Friday, so an order placed over a weekend or a public holiday ships on the next working day.
What does delivery cost, and how long does it take?
We deliver by courier anywhere in South Africa, and delivery is R180 on orders under R2 500 and free on orders of R2 500 or more. It takes 1-3 working days to Johannesburg, Pretoria, Cape Town, Durban and areas within 100km of them, and 2-4 working days to areas more than 100km from a major centre, counted from the day the order is dispatched. Need it sooner? Express delivery is 1-2 working days for R210, or R150 on orders of R2 500 or more - choose it at checkout. We do not ship outside South Africa.
Can I collect instead of having it delivered?
Yes. Collection is from 11 Voortrekker Avenue, Edenvale, Gauteng, by arrangement - message us first so we can have the order picked and waiting. We are open 09:00 to 16:30, Monday to Friday.
What warranty does it carry, and how do I claim?
The warranty period for this product is listed at the end of the Specifications section above. Claims go through us, not the manufacturer - contact us with your order number and a description of the fault and we will handle it from there. Separately from any warranty, the Consumer Protection Act gives you six months from delivery to return goods that are defective, unsafe or not fit for their intended purpose.
What if I change my mind?
You have 14 days from delivery to change your mind - longer than the seven days the Electronic Communications and Transactions Act requires. The item needs to be unused and in its original packaging, and we pay the return shipping. Refunds go back to the payment method you used, within 30 days of the return reaching us.
How can I pay?
Payments are processed by Stitch. At the last step of checkout you are taken to Stitch’s secure page to pay, and brought back here once it is done. Your card details are entered on Stitch’s secure, PCI-compliant page and never touch our systems.
Something not covered here? Read the full FAQ, or WhatsApp us on 079 491 0181.
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