{"product_id":"asus-prime-b550m-k-amd-b550-micro-atx-motherboard","title":"ASUS PRIME B550M-K AMD B550 Micro ATX Motherboard","description":"\u003cp\u003eThe ASUS PRIME B550M-K is a micro-ATX motherboard for AMD Ryzen processors, built for system builders who need a compact platform with modern storage and connectivity without paying for features they won't use. It delivers PCIe 4.0 support, dual M.2 slots, and comprehensive tuning controls in a smaller footprint.\u003c\/p\u003e\u003ch5\u003eWhy This Product\u003c\/h5\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual M.2 with PCIe 4.0 support\u003c\/strong\u003e — The primary M.2 slot runs at PCIe 4.0 x4 on Ryzen 5000\/3000 processors (PCIe 3.0 on 4000 G-Series), delivering 64 Gb\/s bandwidth. The secondary slot runs PCIe 3.0 x4 for a second drive.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMicro-ATX form factor for smaller builds\u003c\/strong\u003e — At 9.6 × 8.7 inches, it fits compact cases and smaller desk footprints while retaining 4 SATA ports and full rear I\/O.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExtensive cooling and tuning\u003c\/strong\u003e — Fan Xpert 2+ software and UEFI BIOS controls let you manage hybrid fan headers and monitor system temps under load. PCH heatsink keeps chipset stable during sustained workloads.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUSB 3.2 Gen 2 on rear panel\u003c\/strong\u003e — Two Type-A ports at up to 10 Gbps give direct access to fast external storage and peripherals without front panel headers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBroad Ryzen processor support\u003c\/strong\u003e — The AM4 socket accepts Ryzen 5000, 3000, and 4000 G-Series desktop CPUs. Check ASUS support list for your specific model.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch5\u003eAt a Glance\u003c\/h5\u003e\u003ctable style=\"width:100%;border-collapse:collapse;font-size:14px;margin-bottom:10px;\"\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px 12px;border:1px solid #ddd;font-weight:bold;width:35%;\"\u003eChipset\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px;border:1px solid #ddd;\"\u003eAMD B550\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px 12px;border:1px solid #ddd;font-weight:bold;width:35%;\"\u003eSocket\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px;border:1px solid #ddd;\"\u003eAMD AM4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px 12px;border:1px solid #ddd;font-weight:bold;width:35%;\"\u003eForm Factor\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px;border:1px solid #ddd;\"\u003eMicro-ATX (9.6 × 8.7 inches)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px 12px;border:1px solid #ddd;font-weight:bold;width:35%;\"\u003eMemory Slots\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px;border:1px solid #ddd;\"\u003e4 x DIMM, up to 128 GB DDR4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px 12px;border:1px solid #ddd;font-weight:bold;width:35%;\"\u003eM.2 Slots\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px;border:1px solid #ddd;\"\u003e2 (1 x PCIe 4.0 x4 on Ryzen 5000\/3000; 1 x PCIe 3.0 x4)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px 12px;border:1px solid #ddd;font-weight:bold;width:35%;\"\u003eRear USB 3.2 Gen 2\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px;border:1px solid #ddd;\"\u003e2 x Type-A (10 Gbps)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px 12px;border:1px solid #ddd;font-weight:bold;width:35%;\"\u003eSATA Ports\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px;border:1px solid #ddd;\"\u003e4 x 6 Gb\/s\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch5\u003eCompatibility\u003c\/h5\u003e\u003cul\u003e\n\u003cli\u003e✓ Fits AMD Ryzen 5000, 3000, and 4000 G-Series desktop processors in AM4 socket.\u003c\/li\u003e\n\u003cli\u003e✓ Supports DDR4 memory up to 4600 MHz (O.C.) in dual-channel configuration across 4 DIMM slots.\u003c\/li\u003e\n\u003cli\u003e✓ Accepts M.2 NVMe drives in 2242, 2260, 2280, and 22110 form factors (22110 only on primary slot).\u003c\/li\u003e\n\u003cli\u003e✓ Supports standard ATX power supplies with 24-pin EATX and 8-pin 12V connectors.\u003c\/li\u003e\n\u003cli\u003eNote: PCIe 4.0 M.2 bandwidth is available only on Ryzen 5000 and 3000 Series processors; Ryzen 4000 G-Series drops to PCIe 3.0 on the primary slot.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch5\u003eBest For \/ Trade-offs\u003c\/h5\u003e\u003cp\u003e\u003cstrong\u003eBest for:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eCompact system builders who need PCIe 4.0 storage in a micro-ATX chassis.\u003c\/li\u003e\n\u003cli\u003eUsers upgrading from older AM4 boards who want modern M.2 and USB 3.2 Gen 2 connectivity.\u003c\/li\u003e\n\u003cli\u003eContent creators and gamers with Ryzen 5000\/3000 chips who benefit from PCIe 4.0 SSD speeds.\u003c\/li\u003e\n\u003cli\u003eDIY builders who want flexible fan and voltage tuning without paying for high-end RGB or WiFi.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eTrade-offs:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eITX builds.\u003c\/b\u003e This is micro-ATX, not mini-ITX; it will not fit ultra-compact cases.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eRyzen 4000 G-Series with high-speed NVMe.\u003c\/b\u003e The primary M.2 slot drops to PCIe 3.0, losing PCIe 4.0 bandwidth. \u003cem\u003e(Default Title only)\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eWireless networking requirements.\u003c\/b\u003e It has wired Gigabit Ethernet only; no WiFi or Bluetooth onboard.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eSystems needing more than 4 SATA drives.\u003c\/b\u003e The board maxes out at 4 SATA 6 Gb\/s ports.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eUsers needing USB-C on rear panel.\u003c\/b\u003e All rear USB ports are Type-A; USB-C is not present.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch5\u003eDescription\u003c\/h5\u003e\u003cp\u003eAMD B550 (Ryzen AM4) micro ATX motherboard with dual M.2, PCIe 4.0, 1 Gb Ethernet, HDMI\/D-Sub\/DVI, SATA 6 Gbps, USB 3.2 Gen 2 Type-A\u003c\/p\u003e\u003cp\u003eComprehensive controls form the foundation of the ASUS Prime series. The Prime B550 motherboard packs flexible tools to tune every aspect of your system, enabling you to tweak performance settings to perfectly match the way you work – maximizing your productivity.\u003c\/p\u003e\u003cp\u003eASUS Prime series is expertly engineered to unleash the full potential of 3rd Generation AMD Ryzen platform. Boasting a robust power design, comprehensive cooling solutions and intelligent tuning options, Prime B550 series motherboards provide daily users and DIY PC builders a range of performance tuning options via intuitive software and firmware features.\u003c\/p\u003e\u003cp\u003ePrime B550M-K is engineered with an array of hybrid fan headers and features comprehensive cooling controls that are configurable via Fan Xpert 2+ software or via the UEFI BIOS, ensuring your rig stays cool and stable under intense workloads.\u003c\/p\u003e\u003ch5\u003eSpecifications\u003c\/h5\u003e\u003cp\u003e\u003cstrong\u003eGeneral\u003c\/strong\u003e\u003c\/p\u003e\u003ctable style=\"width:100%;border-collapse:collapse;font-size:14px;margin-bottom:10px;\"\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px 12px;border:1px solid #ddd;font-weight:bold;width:35%;\"\u003eBrand\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px;border:1px solid #ddd;\"\u003eASUS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003cp\u003e\u003cstrong\u003eProcessor \u0026amp; Memory\u003c\/strong\u003e\u003c\/p\u003e\u003ctable style=\"width:100%;border-collapse:collapse;font-size:14px;margin-bottom:10px;\"\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px 12px;border:1px solid #ddd;font-weight:bold;width:35%;\"\u003eCPU Socket\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px;border:1px solid #ddd;\"\u003eAMD AM4 (Ryzen 5000, 3000, 4000 G-Series)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px 12px;border:1px solid #ddd;font-weight:bold;width:35%;\"\u003eMemory Type\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px;border:1px solid #ddd;\"\u003eDDR4 unbuffered, dual-channel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px 12px;border:1px solid #ddd;font-weight:bold;width:35%;\"\u003eMemory Capacity\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px;border:1px solid #ddd;\"\u003e4 x DIMM slots, max. 128 GB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px 12px;border:1px solid #ddd;font-weight:bold;width:35%;\"\u003eMemory Speeds\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px;border:1px solid #ddd;\"\u003e2133–4600 MHz (overclocked speeds supported)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px 12px;border:1px solid #ddd;font-weight:bold;width:35%;\"\u003eECC Support\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px;border:1px solid #ddd;\"\u003eYes (varies by CPU)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003cp\u003e\u003cstrong\u003eStorage \u0026amp; Expansion\u003c\/strong\u003e\u003c\/p\u003e\u003ctable style=\"width:100%;border-collapse:collapse;font-size:14px;margin-bottom:10px;\"\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px 12px;border:1px solid #ddd;font-weight:bold;width:35%;\"\u003eM.2 Slot 1\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px;border:1px solid #ddd;\"\u003ePCIe 4.0 x4 (Ryzen 5000\/3000) or PCIe 3.0 x4 (Ryzen 4000 G), also supports SATA mode, types 2242\/2260\/2280\/22110\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px 12px;border:1px solid #ddd;font-weight:bold;width:35%;\"\u003eM.2 Slot 2\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px;border:1px solid #ddd;\"\u003ePCIe 3.0 x4 and SATA mode, types 2242\/2260\/2280\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px 12px;border:1px solid #ddd;font-weight:bold;width:35%;\"\u003eSATA Ports\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px;border:1px solid #ddd;\"\u003e4 x SATA 6 Gb\/s, RAID 0, 1, 10 supported\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px 12px;border:1px solid #ddd;font-weight:bold;width:35%;\"\u003ePCIe Slots\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px;border:1px solid #ddd;\"\u003e1 x PCIe x16 (Gen 4 on Ryzen 5000\/3000, Gen 3 on Ryzen 4000 G), 2 x PCIe x1 (Gen 3)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003cp\u003e\u003cstrong\u003eConnectivity \u0026amp; Audio\u003c\/strong\u003e\u003c\/p\u003e\u003ctable style=\"width:100%;border-collapse:collapse;font-size:14px;margin-bottom:10px;\"\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px 12px;border:1px solid #ddd;font-weight:bold;width:35%;\"\u003eEthernet\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px;border:1px solid #ddd;\"\u003eRealtek RTL8111H, 1 Gb with LANGuard protection\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px 12px;border:1px solid #ddd;font-weight:bold;width:35%;\"\u003eRear USB Ports\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px;border:1px solid #ddd;\"\u003e2 x USB 3.2 Gen 2 Type-A (10 Gbps), 4 x USB 3.2 Gen 1 Type-A (5 Gbps)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px 12px;border:1px solid #ddd;font-weight:bold;width:35%;\"\u003eFront Panel USB Headers\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px;border:1px solid #ddd;\"\u003e1 x USB 3.2 Gen 1 (5 Gbps), 2 x USB 2.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px 12px;border:1px solid #ddd;font-weight:bold;width:35%;\"\u003eVideo Outputs\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px;border:1px solid #ddd;\"\u003e1 x HDMI 2.1 (4K@60Hz), 1 x DVI-D, 1 x D-Sub\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px 12px;border:1px solid #ddd;font-weight:bold;width:35%;\"\u003eAudio Codec\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px;border:1px solid #ddd;\"\u003eRealtek ALC887\/897, 7.1 surround, up to 24-bit\/192 kHz playback\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px 12px;border:1px solid #ddd;font-weight:bold;width:35%;\"\u003eAudio Features\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px;border:1px solid #ddd;\"\u003eShielded design, dedicated PCB layers, premium Japanese capacitors, S\/PDIF output header\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003cp\u003e\u003cstrong\u003eCooling \u0026amp; Power\u003c\/strong\u003e\u003c\/p\u003e\u003ctable style=\"width:100%;border-collapse:collapse;font-size:14px;margin-bottom:10px;\"\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px 12px;border:1px solid #ddd;font-weight:bold;width:35%;\"\u003eFan Headers\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px;border:1px solid #ddd;\"\u003e1 x CPU, 2 x chassis (hybrid, configurable)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px 12px;border:1px solid #ddd;font-weight:bold;width:35%;\"\u003eFan Control\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px;border:1px solid #ddd;\"\u003eFan Xpert 2+ software and UEFI BIOS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px 12px;border:1px solid #ddd;font-weight:bold;width:35%;\"\u003eChipset Cooling\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px;border:1px solid #ddd;\"\u003ePCH heatsink\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px 12px;border:1px solid #ddd;font-weight:bold;width:35%;\"\u003ePower Connectors\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px;border:1px solid #ddd;\"\u003e1 x 24-pin EATX, 1 x 8-pin 12V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px 12px;border:1px solid #ddd;font-weight:bold;width:35%;\"\u003eSystem Protection\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px;border:1px solid #ddd;\"\u003e5X Protection III (multiple hardware safeguards)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003cp\u003e\u003cstrong\u003ePhysical \u0026amp; Accessories\u003c\/strong\u003e\u003c\/p\u003e\u003ctable style=\"width:100%;border-collapse:collapse;font-size:14px;margin-bottom:10px;\"\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px 12px;border:1px solid #ddd;font-weight:bold;width:35%;\"\u003eForm Factor\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px;border:1px solid #ddd;\"\u003eMicro-ATX, 9.6 × 8.7 inches (24.4 × 22.1 cm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px 12px;border:1px solid #ddd;font-weight:bold;width:35%;\"\u003eOperating System Support\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px;border:1px solid #ddd;\"\u003eWindows 11, Windows 10 64-bit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px 12px;border:1px solid #ddd;font-weight:bold;width:35%;\"\u003eIncluded Accessories\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px;border:1px solid #ddd;\"\u003e2 x SATA cables, I\/O shield, M.2 mounting screw package, user guide\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e","brand":"ASUS","offers":[{"title":"Default Title","offer_id":55689741140344,"sku":"ASU-3400","price":117.79,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0690\/9119\/7218\/files\/product-image_e815bd4f-a99d-4fb6-a475-11b6e640574a.png?v=1791224905","url":"https:\/\/tech-syndicate.co.uk\/products\/asus-prime-b550m-k-amd-b550-micro-atx-motherboard","provider":"Tech Syndicate","version":"1.0","type":"link"}