ASUS
ASUS Prime B550M-K ARGB AM4 Micro-ATX Motherboard
In stock
SKU PRIME B550M-KARGB
R 2 099,00
Or pay in up to 6 interest-free instalments from R 349,83 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 dependable AM4 starting point, now with addressable RGB headers built in
Quick Specs
- AMD B550 chipset on Socket AM4 for Ryzen 3000, 4000G and 5000 series CPUs
- Four DDR4 slots with dual-channel support up to 128GB
- PCIe 4.0 x16 graphics slot fed directly by the CPU
- M.2 NVMe socket plus multiple SATA 6Gb/s ports
- Micro-ATX layout with addressable Gen2 RGB and Aura Sync headers
A safe foundation for a first Ryzen build
The Prime line exists to be predictable, and that is exactly what you want under a first gaming PC. You get ASUS firmware that is easy to navigate, sensible fan control through Fan Xpert, and a memory layout that lets you fill all four slots as budget allows. B550 keeps PCIe 4.0 where it counts, so a Gen4 SSD and a modern graphics card both run at full bandwidth. Paired with a Ryzen 5 5600 and 16GB of DDR4, this makes a machine that handles 1080p gaming, streaming and study work without any drama, and AM4 parts remain widely stocked locally.
Know the ceiling before you buy
This is a value board and it shows in the places you would expect. There is no onboard Wi-Fi or Bluetooth, networking is Gigabit rather than 2.5G, and the power delivery is sized for mid-range Ryzen chips rather than a 5950X pushed hard. Rear I/O is functional rather than generous, and Micro-ATX limits how many add-in cards you can fit. If you are planning heavy multi-core rendering, want wireless without an adapter, or need lots of storage and expansion, look at a higher-tier B550 or an X570 ATX board instead.
FEATURES:
- PCIe 4.0 for graphics and NVMe storage on a mainstream AM4 platform
- Addressable Gen2 RGB header with ASUS Aura Sync lighting control
- ASUS Fan Xpert fan tuning and comprehensive UEFI BIOS with EZ Mode
- DIMM Fit and memory training features for more reliable DDR4 kit compatibility
- Onboard heatsinking and protective circuitry from the ASUS 5X Protection design philosophy
SPECIFICATIONS:
- Model: ASUS Prime B550M-K ARGB
- Chipset: AMD B550
- Socket: AMD Socket AM4
- Form Factor: Micro-ATX
- Memory: 4 x DDR4 DIMM, dual channel, up to 128GB, supports overclocked memory profiles
- Expansion Slots: 1 x PCIe 4.0 x16, plus additional PCIe slots for add-in cards
- Storage: M.2 socket for NVMe SSD, 4 x SATA 6Gb/s ports
- Networking: Gigabit Ethernet LAN
- Audio: Realtek HD audio with dedicated rear audio jacks
- Rear I/O Highlights: HDMI and D-Sub video output for AM4 APUs, LAN, audio and legacy PS/2 connectivity
- USB: USB 3.2 Gen1 and USB 2.0 rear ports with front-panel USB headers onboard
- Warranty: 3 Year
WHAT'S IN THE BOX:
- ASUS Prime B550M-K ARGB motherboard
- SATA data cables
- I/O shield
- M.2 mounting screw package
- User manual and driver documentation
Why ASUS?
ASUS builds some of the most consistently reliable firmware and validation testing in the industry, which is why Prime boards remain the default recommendation for first-time builders. Every ASUS motherboard from AZonline is genuine stock carrying a 3 Year warranty.
Key details
| Socket | AM4 |
|---|---|
| Chipset | B550 |
| Form factor | Micro-ATX |
| Memory type | DDR4 |
| DIMM slots | 4 |
| Maximum memory | 128 GB |
| Category | Motherboards |
| Brand | ASUS |
| Warranty | 3 Years |
Questions
Before you buy
Which processors fit this board?
It takes AM4 processors on the B550 chipset. Socket and chipset together decide what will run: the socket has to match physically, and the chipset decides which generations on that socket are supported. For a chip released after the board, check the manufacturer’s CPU support list to see whether a BIOS update is needed first.
Which cases will this board fit?
It is Micro-ATX. A case supports its own size and anything smaller - an ATX case takes ATX, Micro-ATX and Mini-ITX boards, a Micro-ATX case takes Micro-ATX and Mini-ITX. Each case we sell lists the board sizes it accepts under Specifications.
What memory does it take?
DDR4 across 4 slots, up to 128GB in total. DDR4 and DDR5 are not interchangeable - the notch in the module is in a different place, so the wrong type will not seat. Buy the memory as a matched kit rather than as single sticks wherever you can.
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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