ASUS PRIME B550M-K
Prices & availability
Where to buy the ASUS PRIME B550M-K
| Store | Condition | Price (snapshot) | Value | Checked | Offer link |
|---|---|---|---|---|---|
| Newegg | New | $129 | 31 | Go to offer → | |
| Amazon Affiliate | Not tracked | Not tracked | Not ranked | On Amazon | Check on Amazon |
The ASUS PRIME B550M-K ranks #418 of 846 in-stock motherboards by Relative Value under the balanced preset in the 2026-09-11 offer frame. Below: how it scores per scenario and what the math says about alternatives.
Is the ASUS PRIME B550M-K worth it in September 2026? (value analysis)
It sits at #418 of 846 in balanced value — the "would enter" prices above show where it starts beating this frame's leaders. The current top 3 are within 14 points of each other.
Each letter answers “how well does this product handle that job?” — price is never part of it.
You pay 46% more than ASUS PRIME B450M-A CSM, which reaches the same level for this use.
Not known for this board: fan and pump headers. · Evidence confidence 65%
Near this price: #42 value · #21 capability within ±15% of this price · ±15% band
Scenario Tiers grade capability for each use — price excluded, identical to the tier list.
The scenario matrix below adds prices from the 2026-09-11 offer frame back in as Relative Value.
Value and price targets for every scenario (detailed table)
| Scenario (preset) | Relative Value | Strong Value at ≤ | Excellent Value at ≤ | Market-leading Value (100) at ≤ | Top value pick here |
|---|---|---|---|---|---|
| Balanced | 31 | $33 | $28 | $24 | Gigabyte X870 GAMING WIFI6 |
| Gaming Build | 21 | $5 | $4 | $3 | Gigabyte X870 GAMING WIFI6 |
| Workstation | 8 | no price reaches 80+ here — other products dominate this scenario | ASUS ROG CROSSHAIR X870E GLACIAL | ||
| Small-Case Fit | 30 | $11 | $8 | $7 | Gigabyte Z790M AORUS ELITE AX ICE |
| Strict Budget | 48 | $77 | $69 | $62 | ASRock B550 Phantom Gaming 4 |
Relative Value is the 0–100 benefit/cost result computed within the current in-stock frame for each preset; the frame leader is 100 and other products show their relative share. Target prices are calculation thresholds under today's dataset; where none exist, the row says so instead of showing blanks. Recalculated on every data refresh.
Price & value history
What we actually observed — lowest tracked offer, average offer price, and value/rank position among products on sale now in this category.
- 📈 Up 19.4% since tracking began ($108 → $129).
- ↕️ Swing of $52 between $101 (2026-08-30) and $153 (2026-09-08).
Across 30 tracked days we recorded the ASUS PRIME B550M-K on 29 of them. The lowest tracked offer was $101 on 2026-08-30 and the highest $153 on 2026-09-08. Today's lowest total is $129, 18.3% above the 30-day average of $109. The average offer price across 1 retailer is $129 (0% above the cheapest). Price volatility is moderate (10.1% CV).
Prices are the cheapest total (item plus shipping) we recorded for a New, in-stock offer on that day. Value and rank here are measured against products on sale now — the set this product actually competes in — so they will not match a Value Score computed over the whole catalogue elsewhere on this page. A previous-generation part is ranked among previous-generation parts, because that is the choice a buyer of one is actually making.
ASUS PRIME B550M-K CPU, case, memory & storage compatibility
| CPU socket | AM4 |
| Chipset | AMD B550 |
| Form factor | Micro ATX |
| Memory generation / slots | DDR4 · 4 slots |
| Maximum memory | 128 GB |
| M.2 / SATA | 2 M.2 · 4 SATA |
| Wi-Fi / Ethernet | No integrated Wi-Fi tracked · 1 Gb/s |
Socket support is necessary but not sufficient: confirm the exact CPU on the board vendor's support list and the required BIOS version. Also match case form factor, DDR generation, front-panel headers and the number of M.2/SATA devices you plan to install.
Best alternatives to the ASUS PRIME B550M-K at similar prices
Chosen for Gaming Build, not for general performance — a product that suits a different job is not an alternative here. Tiers come from the same rubric as the tier list; products we can't grade for this job are left out rather than guessed at. Prices use the page's dated offer frame.
FAQ
- What is a good price for the ASUS PRIME B550M-K right now?
- The price targets at the top of this page are calculation thresholds, not forecasts: they say what the competing offers in the 2026-09-11 frame would have to be beaten by under the balanced weighting. Two caveats worth knowing — they move when the rest of the market moves, even if this product's own price doesn't; and hitting a target says the PRICE is good, not that the product suits your job (that's what the tier badges above answer). Change the weighting in the calculator and the targets change with it.
- Where can I buy the ASUS PRIME B550M-K?
- We track 1 offer(s) across stores, variants and conditions — the first 1 useful price highlights are shown above, which is the complete currently tracked set. Each row keeps its own checked date; always confirm the final price at the retailer.
- Is the ASUS PRIME B550M-K worth it in September 2026?
- That depends on your scenario: its Relative Value ranges across presets in the scenario matrix above (currently #418 of 846 in-stock by balanced value in the 2026-09-11 offer frame). Use the live calculator to weigh your own priorities.
- Which CPUs work with the ASUS PRIME B550M-K?
- The board uses AM4 with the AMD B550 chipset. Confirm the exact CPU and required BIOS version on the manufacturer's CPU-support page; matching the socket alone does not guarantee firmware support.
- What is the ASUS PRIME B550M-K best suited for?
- It provides 2 M.2 slots, 4 RAM slots and the connectivity summarized above. Gaming, workstation and compact-build tiers grade different board capabilities; a higher tier does not imply more FPS.
Offer frame: 2026-09-11 · dataset generated 2026-09-11 · formula mobo-value-v1.4-benefit-cost-product · Value Score is an estimate based on our current dataset, selected weights, market prices and methodology — not an official product rating or a price forecast. Target prices are calculation thresholds, not predictions. Methodology · Report a data error We are not a shop. Affiliate links may earn us a commission; they never change the calculations or the ranking.