{"product_id":"asus-asus-prime-b850-plus-csm-amd-b850-socket-am5-atx","title":"ASUS PRIME B850-PLUS-CSM AM5 ATX Motherboard","description":"\u003cdiv style=\"font-family: Arial, sans-serif; color:#222; line-height:1.6;\"\u003e\n\n\u003cp\u003e\u003cstrong\u003eASUS PRIME B850-PLUS-CSM\u003c\/strong\u003e is a full-size ATX motherboard designed for AMD Ryzen 7000, 8000, and 9000 Series processors on the AM5 platform. Built on the AMD B850 chipset with DDR5 memory, PCIe 5.0 GPU and M.2 slots, 2.5GbE LAN, and BIOS FlashBack, it offers a well-rounded feature set for mainstream AMD builds in commercial and SMB environments.\u003c\/p\u003e\n\n\u003cp\u003e\nUK-based seller\u003cbr\u003e\nTracked delivery across the UK\u003cbr\u003e\nGenuine product from trusted distributors\n\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eAMD B850 chipset, AM5 socket - supports Ryzen 7000, 8000 and 9000 Series processors\u003c\/li\u003e\n\u003cli\u003eATX form factor (305 x 244mm)\u003c\/li\u003e\n\u003cli\u003eDDR5 memory - 4 slots, up to 256GB, up to DDR5-8000 (OC)\u003c\/li\u003e\n\u003cli\u003e1x PCIe 5.0 x16 slot for GPU\u003c\/li\u003e\n\u003cli\u003e1x PCIe 4.0 x16 + 2x PCIe 3.0 x16 slots\u003c\/li\u003e\n\u003cli\u003e1x PCIe 5.0 x4 M.2 + 1x PCIe 4.0 x4 M.2 + 1x PCIe 4.0 x2 M.2 (3 M.2 slots total)\u003c\/li\u003e\n\u003cli\u003e4x SATA 6Gb\/s ports, RAID 0\/1\/5\/10\u003c\/li\u003e\n\u003cli\u003eRealtek 2.5GbE LAN (ASUS LANGuard, no Wi-Fi)\u003c\/li\u003e\n\u003cli\u003eRealtek 7.1 Surround Sound HD Audio\u003c\/li\u003e\n\u003cli\u003e3x Addressable RGB Gen 2 headers\u003c\/li\u003e\n\u003cli\u003eBIOS FlashBack button on rear panel\u003c\/li\u003e\n\u003cli\u003e1x Thunderbolt header (internal)\u003c\/li\u003e\n\u003cli\u003eCSM variant - suited for commercial and SMB deployments\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003eThe ASUS PRIME B850-PLUS-CSM is a capable ATX board for mainstream AMD Ryzen builds in commercial environments. It supports the full range of Ryzen 7000, 8000, and 9000 Series processors, and offers DDR5 memory with OC support up to DDR5-8000. Three M.2 slots — including one PCIe 5.0 — provide fast and flexible storage, while the PCIe 5.0 x16 GPU slot ensures compatibility with current and future graphics cards. The BIOS FlashBack button enables BIOS updates without a CPU or RAM installed. The CSM designation includes additional management features and the ACC Express activation key card for business deployments.\u003c\/p\u003e\n\n\u003ch3\u003eDelivery \u0026amp; Fulfilment\u003c\/h3\u003e\n\u003cp\u003e\nThis product is sold by \u003cstrong\u003eTechFinder UK\u003c\/strong\u003e, a UK-based sole trader business.\u003cbr\u003e\nAll hardware is sourced through established distribution partners.\u003cbr\u003e\nOrders are dispatched within 1-2 business days with tracked delivery across the United Kingdom.\n\u003c\/p\u003e\n\n\u003ch3\u003eWhy Buy from TechFinder UK?\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eUK-based sole trader - genuine products, real accountability\u003c\/li\u003e\n\u003cli\u003eSourced through established distribution partners\u003c\/li\u003e\n\u003cli\u003eSecure checkout with buyer protection\u003c\/li\u003e\n\u003cli\u003eTracked UK delivery, dispatched within 1-2 business days\u003c\/li\u003e\n\u003cli\u003ePre- and post-purchase support available\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable style=\"width:100%; border-collapse:collapse;\"\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:10px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eChipset\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:10px; border:1px solid #ddd;\"\u003eAMD B850\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:10px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eSocket\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:10px; border:1px solid #ddd;\"\u003eAM5 (Ryzen 7000 \/ 8000 \/ 9000 Series)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:10px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eForm Factor\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:10px; border:1px solid #ddd;\"\u003eATX (305 x 244mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:10px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eMemory\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:10px; border:1px solid #ddd;\"\u003e4x DDR5 DIMM, up to 256GB, up to DDR5-8000 (OC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:10px; border:1px solid #ddd;\"\u003e\u003cstrong\u003ePCIe Slots\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:10px; border:1px solid #ddd;\"\u003e1x PCIe 5.0 x16, 1x PCIe 4.0 x16, 2x PCIe 3.0 x16\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:10px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eM.2 Slots\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:10px; border:1px solid #ddd;\"\u003e1x PCIe 5.0 x4, 1x PCIe 4.0 x4, 1x PCIe 4.0 x2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:10px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eSATA Ports\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:10px; border:1px solid #ddd;\"\u003e4x SATA 6Gb\/s (RAID 0\/1\/5\/10)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:10px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eLAN\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:10px; border:1px solid #ddd;\"\u003eRealtek 2.5GbE (ASUS LANGuard)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:10px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eWireless\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:10px; border:1px solid #ddd;\"\u003eNone\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:10px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eAudio\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:10px; border:1px solid #ddd;\"\u003eRealtek 7.1 Surround Sound HD Audio\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:10px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eRear I\/O\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:10px; border:1px solid #ddd;\"\u003e2x USB 2.0, 2x USB 5Gbps Type-A, 3x USB 10Gbps Type-A, 1x USB 10Gbps Type-C, 1x HDMI, 1x DisplayPort, 1x LAN, 3x Audio jacks, 1x BIOS FlashBack\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:10px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eInternal Headers\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:10px; border:1px solid #ddd;\"\u003e3x USB 2.0, 2x USB 5Gbps, 1x Thunderbolt, 3x ARGB Gen 2, 1x TPM, 1x COM, 1x S\/PDIF\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:10px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eBIOS\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:10px; border:1px solid #ddd;\"\u003e256Mbit Flash, UEFI AMI BIOS, BIOS FlashBack\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:10px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:10px; border:1px solid #ddd;\"\u003e0.98kg (net)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eBox Contents\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eMotherboard\u003c\/li\u003e\n\u003cli\u003e2x SATA 6Gb\/s cables\u003c\/li\u003e\n\u003cli\u003e1x M.2 rubber package\u003c\/li\u003e\n\u003cli\u003e3x M.2 screw packages\u003c\/li\u003e\n\u003cli\u003eQuick start guide\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eProduct Identification\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eModel:\u003c\/strong\u003e PRIME B850-PLUS-CSM\u003cbr\u003e\u003cstrong\u003eEAN:\u003c\/strong\u003e 4711387982037\u003c\/p\u003e\n\n\u003c\/div\u003e","brand":"ASUS","offers":[{"title":"Default Title","offer_id":59133313810766,"sku":"127948","price":172.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0924\/0310\/6126\/files\/8fd73a52186d94715f901db24c4317601b5493bf.jpg?v=1777411691","url":"https:\/\/techfinderuk.com\/products\/asus-asus-prime-b850-plus-csm-amd-b850-socket-am5-atx","provider":"TechFinder UK","version":"1.0","type":"link"}