{"product_id":"asrock-b550m-pro4-am4-micro-atx-motherboard-ddr4-pcie-4-0","title":"ASRock B550M Pro4 AM4 Micro-ATX Motherboard - DDR4, PCIe 4.0","description":"\u003cp\u003eThe ASRock B550M Pro4 is a Micro-ATX motherboard built for Ryzen 5000 and older-generation processor builds. It combines PCIe 4.0 support with a sturdy 8-phase power delivery and comprehensive connectivity, making it a capable choice for gamers and enthusiasts building or upgrading mid-range systems.\u003c\/p\u003e\u003ch5\u003eWhy This Product\u003c\/h5\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePCIe 4.0 ready with strong power delivery\u003c\/strong\u003e — One PCIe 4.0 x16 slot backed by an 8-phase power design with 50A chokes ensures stable performance for high-end graphics cards and NVMe drives. The reinforced slot has extra anchor points and a stronger latch to support heavy cards securely.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSupports Ryzen 5000 and earlier AM4 processors\u003c\/strong\u003e — AM4 socket compatibility spans Ryzen 3000 through 5000 series, including G-Series APUs with integrated graphics. Check your specific processor against the compatibility list before purchase.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFast memory support with overclocking headroom\u003c\/strong\u003e — Four DDR4 DIMM slots reach up to 128 GB capacity and support speeds from 2133 to 4733+ MHz overclocked, giving enthusiasts plenty of tuning options.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMultiple storage and expansion options\u003c\/strong\u003e — Six SATA3 ports, one PCIe 4.0 M.2 slot, one PCIe 3.0 M.2 slot, and an M.2 Key E slot for WiFi modules provide flexibility for drives and wireless connectivity.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGenerous USB and audio connectivity\u003c\/strong\u003e — Two USB 3.2 Gen2 ports on the rear (one Type-C), eight USB 3.2 Gen1 ports, plus Realtek ALC1220 7.1 audio with Nahimic ensure modern peripherals and sound quality.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRGB and troubleshooting features included\u003c\/strong\u003e — Onboard RGB headers support Polychrome RGB Sync for lighting effects, and the POST Status Checker helps diagnose startup problems quickly.\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%;\"\u003eForm Factor\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px;border:1px solid #ddd;\"\u003eMicro ATX\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\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%;\"\u003eCPU Socket\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%;\"\u003eMemory Capacity\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px;border:1px solid #ddd;\"\u003eUp 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%;\"\u003ePCIe 4.0 Slots\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px;border:1px solid #ddd;\"\u003e1 x PCIe 4.0 x16\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%;\"\u003eStorage Ports\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px;border:1px solid #ddd;\"\u003e6 x SATA3, 2 x M.2 (Gen4 \u0026amp; Gen3)\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%;\"\u003eUSB 3.2 Gen2\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px;border:1px solid #ddd;\"\u003e2 (1 Type-A, 1 Type-C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch5\u003eCompatibility\u003c\/h5\u003e\u003cul\u003e\n\u003cli\u003e✓ Ryzen 5000 series processors and Ryzen 5000 G-Series APUs with integrated graphics.\u003c\/li\u003e\n\u003cli\u003e✓ Ryzen 3000, 3000 G-Series, and 4000 G-Series processors; will require a BIOS update on first use.\u003c\/li\u003e\n\u003cli\u003e✓ DDR4 memory up to 128 GB across four DIMM slots, supporting both standard and high-speed overclocked modules.\u003c\/li\u003e\n\u003cli\u003e✓ PCIe 4.0 graphics cards and NVMe storage drives; also supports older PCIe 3.0 and PCIe 2.0 devices.\u003c\/li\u003e\n\u003cli\u003eNote: AMD Radeon graphics cards for dual-GPU setups via CrossFireX; not compatible with NVIDIA multi-GPU configurations.\u003c\/li\u003e\n\u003cli\u003eNote: WiFi expansion requires a compatible M.2 Key E module installed in the dedicated slot; no WiFi included.\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\u003eRyzen 5000 gaming builds in compact cases\u003c\/li\u003e\n\u003cli\u003eEnthusiasts who want PCIe 4.0 without high-end pricing\u003c\/li\u003e\n\u003cli\u003eOverclocking and memory tuning on a budget\u003c\/li\u003e\n\u003cli\u003eBuilders who need multiple storage drives and USB devices\u003c\/li\u003e\n\u003cli\u003eSystems using Ryzen G-Series APUs for workstation or HTPC use\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\u003eIntel systems.\u003c\/b\u003e This is an AMD-only socket and chipset.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eNVIDIA multi-GPU setups.\u003c\/b\u003e Supports only AMD CrossFireX, not SLI.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eLarge tower builds requiring full-size ATX.\u003c\/b\u003e Micro-ATX form factor limits expansion slots and may not fit all cases.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eBuilt-in WiFi requirement.\u003c\/b\u003e WiFi is optional via M.2 Key E module; not included by default.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eHigh-core-count Threadripper or HEDT workloads.\u003c\/b\u003e B550 chipset and socket AM4 are designed for mainstream Ryzen, not workstation-class CPUs.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch5\u003eDescription\u003c\/h5\u003e\u003cp\u003eAMD AM4 socket supports Ryzen 3000, 3000 G-Series, 4000 G-Series, 5000 and 5000 G-Series processors. 8 power phase design, DDR4 up to 4733+ MHz overclocked, 1 PCIe 4.0 x16, 2 PCIe 3.0 x16, M.2 Key E for WiFi. HDMI, DisplayPort, D-Sub outputs. Realtek ALC1220 7.1 HD audio with Nahimic. AMD CrossFireX support. 6 SATA3, M.2 Gen4x4 and Gen3x2. 2 USB 3.2 Gen2, 8 USB 3.2 Gen1. Gigabit LAN.\u003c\/p\u003e\u003cp\u003eFeaturing sturdy components and completely smooth power delivery to the CPU. Plus, it offers unmatched overclocking capabilities and enhanced performance with the lowest temperature for advanced gamers as well. Compared to traditional chokes, ASRock's premium 50A power chokes effectively make the saturation current up to three times better, thus providing enhanced and improved Vcore voltage to the motherboard. 2 ounce copper inner layers that provide stable signal traces and power shapes! Delivering lower temperature and higher energy efficiency for overclocking, it's able to support the latest DDR4 memory modules with most extreme memory performance!\u003c\/p\u003e\u003cp\u003eConventional PC systems processor can only access a fraction of graphics memory and limits system performance. With AMD Smart Access Memory, the data channel gets expanded to harness the full potential of GPU memory, removes the bottleneck and increase performance.\u003c\/p\u003e\u003cp\u003eThe reinforced steel slot is capable of supporting PCI Express 4.0 standard. The various benefits include: ✔ Extra anchor points ✔ Stronger latch ✔ Ensure signal stability ✔ Make sure heavy graphics cards to be well-installed.\u003c\/p\u003e\u003cp\u003eThis motherboard features onboard RGB headers and an addressable RGB header that allow motherboard to be connected to compatible LED devices such as strip, CPU fans, coolers, chassis and so on. Users may also synchronize RGB LED devices across the Polychrome RGB Sync-certified accessories to create their own unique lighting effects. *The addressable RGB LED header supports WS2812B addressable RGB LED strip (5V\/Data\/GND), with a maximum power rating of 3A (5V), a max of 80 LEDs and length within 2 meters.\u003c\/p\u003e\u003cp\u003eThis motherboard has a pair of onboard Type-A and Type-C USB 3.2 Gen2 ports built on the rear i\/o for supporting next generation USB 3.2 Gen2 devices and to deliver up to 10 Gbps data transfer rates. *Charge speed may vary due to controller protocol, please make sure your device can support 3.0A charging. Besides the onboard LAN port, users may also choose wireless connections by M.2 (Key E) slot.\u003c\/p\u003e\u003cp\u003eAn easy troubleshooting tool that shows the CPU \/ DRAM \/ VGA \/ BOOT operation every time you start up the system. Post Status Checker is a fast and easy way to identify the source of the problem.\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;\"\u003eASRock\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%;\"\u003eModel\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px;border:1px solid #ddd;\"\u003eB550M Pro4\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%;\"\u003ePart Number\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px;border:1px solid #ddd;\"\u003e90-MXBDK0-A0UAYZ\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\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%;\"\u003eSupported CPUs\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px;border:1px solid #ddd;\"\u003eRyzen 3000, 3000 G-Series, 4000 G-Series, 5000 and 5000 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 Slots\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px;border:1px solid #ddd;\"\u003e4 x DDR4 DIMM (288-pin), 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%;\"\u003eMax Memory\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px;border:1px solid #ddd;\"\u003e128 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;\"\u003eDDR4 2133–4733+ MHz (OC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003cp\u003e\u003cstrong\u003eExpansion \u0026amp; Storage\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%;\"\u003ePCIe Slots\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px;border:1px solid #ddd;\"\u003e1 x PCIe 4.0 x16, 1 x PCIe 3.0 x16, 1 x PCIe 3.0 x1\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;\"\u003e6 x SATA3\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;\"\u003e1 x M.2 (PCIe Gen4 x4), 1 x M.2 (PCIe Gen3 x2 \u0026amp; SATA3), 1 x M.2 Key E (WiFi\/BT)\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%;\"\u003eMulti-GPU Support\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px;border:1px solid #ddd;\"\u003eAMD CrossFireX and Quad CrossFireX\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%;\"\u003eGraphics Outputs\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px;border:1px solid #ddd;\"\u003eD-Sub, DisplayPort 1.4, HDMI 2.1 (up to 4K x 2K @ 60Hz)\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%;\"\u003eUSB (Rear)\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px;border:1px solid #ddd;\"\u003e2 x USB 3.2 Gen2 (1 Type-A, 1 Type-C), 4 x USB 3.2 Gen1, 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%;\"\u003eUSB (Front Headers)\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px;border:1px solid #ddd;\"\u003e4 x USB 3.2 Gen1, 4 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%;\"\u003eLAN\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px;border:1px solid #ddd;\"\u003eRealtek Gigabit LAN (RTL8111H)\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 ALC1220, 7.1 CH with Nahimic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003cp\u003e\u003cstrong\u003ePower \u0026amp; Features\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%;\"\u003ePower Design\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px;border:1px solid #ddd;\"\u003e8 Power Phase, 50A Power Chokes, 2oz Copper PCB\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%;\"\u003eRGB Headers\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px;border:1px solid #ddd;\"\u003eOnboard RGB + addressable RGB (Polychrome RGB Sync), supports WS2812B strip up to 80 LEDs, 3A @ 5V\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%;\"\u003ePOST Status Checker\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px;border:1px solid #ddd;\"\u003eOnboard troubleshooting tool for CPU, DRAM, VGA, BOOT diagnosis\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%;\"\u003eSmart Access Memory\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px;border:1px solid #ddd;\"\u003eAMD Smart Access Memory supported\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e","brand":"ASRock","offers":[{"title":"Default Title","offer_id":55678826873208,"sku":"ASR-2019","price":102.63,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0690\/9119\/7218\/files\/asrock-b550m-pro4-1.jpg?v=1790883563","url":"https:\/\/tech-syndicate.co.uk\/products\/asrock-b550m-pro4-am4-micro-atx-motherboard-ddr4-pcie-4-0","provider":"Tech Syndicate","version":"1.0","type":"link"}