02 YERAS WARRANTY PRODUCT SPECIFICATIONS ASROCK B550M STEEL LEGEND Unique Feature : ASRock USB 3.2 Gen2 : : - ASRock USB 3.2 Gen2 Type-A Port (10 Gb/s) : - ASRock USB 3.2 Gen2 Type-C Port (10 Gb/s) ASRock Super Alloy : : - XXL Aluminum Alloy Heatsink : - Premium 60A Power Choke : - 50A Dr.MOS : - Nichicon 12K Black Caps (100% Japan made high quality conductive polymer capacitors) : - I/O Armor : - Matte Black PCB : - High Density Glass Fabric PCB : - 2oz Copper PCB : 2.5G LAN : ASRock Steel Slot Gen4 : ASRock Full Coverage M.2 Heatsink : ASRock Hyper M.2 (PCIe Gen4x4) : ASRock POST Status Checker (PSC) : ASRock Full Spike Protection (for all USB, Audio, LAN Ports) : ASRock Live Update & APP Shop CPU : : - Supports AMD AM4 Socket Ryzen™ 3000, 3000 G-Series, 4000 G-Series, 5000 and 5000 G-Series Desktop Processors* : - Digi Power design : - 10 Power Phase design : Not compatible with AMD Athlon™ Processors. Chipset : - AMD B550 Memory : : - Dual Channel DDR4 Memory Technology : - 4 x DDR4 DIMM Slots : - AMD Ryzen series CPUs (Vermeer) support DDR4 4533+(OC) / 4466(OC) / 4400(OC) / 4333(OC) / 4266(OC) / 4200(OC) / 4133(OC) / 4000(OC) / 3866(OC) / 3800(OC) / 3733(OC) / 3600(OC) / 3466(OC) / 3200 / 2933 / 2667 / : 2400 / 2133 ECC & non-ECC, un-buffered memory* : - AMD Ryzen series CPUs (Matisse) support DDR4 4533+(OC) / 4466(OC) / 4400(OC) / 4333(OC) / 4266(OC) / 4200(OC) / 4133(OC) / 4000(OC) / 3866(OC) / 3800(OC) / 3733(OC) / 3600(OC) / 3466(OC) / 3200 / 2933 / 2667 / : : 2400 / 2133 ECC & non-ECC, un-buffered memory* : - AMD Ryzen series APUs (Cezanne) support DDR4 4733+(OC) / 4666(OC) / 4600(OC) / 4533(OC) / 4466(OC) / 4400(OC) / 4333(OC) / 4266(OC) / 4200(OC) / 4133(OC) / 4000(OC) / 3866(OC) / 3800(OC) / 3733(OC) / 3600(OC) / 3466(OC) / 3200 / 2933 / 2667 / 2400 / 2133 ECC & non-ECC, un-buffered memory* : - AMD Ryzen series APUs (Renoir) support DDR4 4733+(OC) / 4666(OC) / 4600(OC) / 4533(OC) / 4466(OC) / 4400(OC) / 4333(OC) / 4266(OC) / 4200(OC) / 4133(OC) / 4000(OC) / 3866(OC) / 3800(OC) / 3733(OC) / 3600(OC) / 3466(OC) / 3200 / 2933 / 2667 / 2400 / 2133 ECC & non-ECC, un-buffered memory* : - AMD Ryzen series APUs (Picasso) support DDR4 3333+(OC) / 3200(OC) / 2933 / 2667 / 2400 / 2133 non-ECC, un-buffered memory* : - Max. capacity of system memory: 128GB** : - Supports Extreme Memory Profile (XMP) memory modules : - 15μ Gold Contact in DIMM Slots : For Ryzen Series APUs (Picasso, Cezanne and Renoir), ECC is only supported with PRO CPUs. Please refer to below table for AMD non-XMP memory frequency support. For more details. : SR: Single rank DIMM, 1Rx4 or 1Rx8 on DIMM module label x=1 or 2 : DR: Dual rank DIMM, 2Rx4 or 2Rx8 on DIMM module label : Due to the operating system limitation, the actual memory size may be less than 4GB for the reservation for system usage under Windows® 32-bit OS. For Windows® 64-bit OS with 64-bit CPU, there is no such limitation. BIOS : : - 256Mb AMI UEFI Legal BIOS with GUI support : - Supports "Plug and Play" : - ACPI 5.1 compliance wake up events : - Supports jumperfree : - SMBIOS 2.3 support : - CPU, CPU VDDCR_SOC, DRAM, VPPM, 1.05V_PROM_S5, 2.5V_PROM, +1.8VSB, VDDP Voltage Multi-adjustment Graphics : : - Integrated AMD Radeon Vega Series Graphics in Ryzen Series APU* : - DirectX 12, Pixel Shader 5.0 : - Shared memory default 2GB. Max Shared memory supports up to 16GB.** : - Dual graphics output: support HDMI and DisplayPort 1.4 ports by independent display controllers : - Supports HDMI 2.1 with max. resolution up to 4K x 2K (4096x2160) @ 60Hz : - Supports DisplayPort 1.4 with max. resolution up to 5K (5120x2880)@120Hz : - Supports Auto Lip Sync, Deep Color (12bpc), xvYCC and HBR (High Bit Rate Audio) with HDMI 2.1 Port (Compliant HDMI monitor is required) : - Supports HDR (High Dynamic Range) with HDMI 2.1 : - Supports HDCP 2.3 with HDMI 2.1 and DisplayPort 1.4 Ports*** : - Supports 4K Ultra HD (UHD) playback with HDMI 2.1 and DisplayPort 1.4 Ports : - Supports Microsoft® PlayReady : Actual support may vary by CPU : The Max shared memory 16GB requires 32GB system memory installed. : Picasso supports HDCP 2.2 with HDMI 2.0 Port Audio : : - 7.1 CH HD Audio with Content Protection (Realtek ALC1200 Audio Codec) : - Premium Blu-ray Audio support : - Supports Surge Protection : - PCB Isolate Shielding : - Individual PCB Layers for R/L Audio Channel : - Gold Audio Jacks : - Nahimic Audio LAN : : - 2.5 Gigabit LAN 10/100/1000/2500 Mb/s : - Dragon RTL8125BG : - Supports Dragon 2.5G LAN Software : - Smart Auto Adjust Bandwidth Control : - Visual User Friendly UI : - Visual Network Usage Statistics : - Optimized Default Setting for Game, Browser, and Streaming Modes : - User Customized Priority Control : - Supports Wake-On-LAN : - Supports Lightning/ESD Protection : - Supports Energy Efficient Ethernet 802.3az : - Supports PXE Slots : : AMD Ryzen series CPUs (Vermeer and Matisse) : - 2 x PCI Express x16 Slots (PCIE1: Gen4x16 mode; PCIE3: Gen3 x4 mode)* : AMD Ryzen series APUs (Cezanne and Renoir) : - 2 x PCI Express x16 Slots (PCIE1: Gen3x16 mode; PCIE3: Gen3 x4 mode)* : AMD Ryzen series APUs (Picasso) : - 2 x PCI Express x16 Slots (PCIE1: Gen3x8 mode; PCIE3: Gen3 x4 mode)* : - 1 x PCI Express 3.0 x1 Slot : - Supports AMD Quad CrossFireX™ and CrossFireX™ : - 15μ Gold Contact in VGA PCIe Slot (PCIE1) : - 1 x M.2 Socket (Key E), supports type 2230 WiFi/BT PCIe WiFi module : Supports NVMe SSD as boot disks Storage : : - 6 x SATA3 6.0 Gb/s Connectors, support RAID (RAID 0, RAID 1 and RAID 10), NCQ, AHCI and Hot Plug* : - 1 x Hyper M.2 Socket (M2_1), supports M Key type 2280 M.2 PCI Express module up to Gen4x4 (64 Gb/s) (with Vermeer, Matisse) or Gen3x4 (32 Gb/s) (with Cezanne, Renoir and Picasso)** : - 1 x M.2 Socket (M2_2), supports M Key type 2280 M.2 SATA3 6.0 Gb/s module and M.2 PCI Express module up to Gen3 x2 (16 Gb/s)** : M2_2 and SATA3_5_6 share lanes. If either one of them is in use, the other one will be disabled. : Supports NVMe SSD as boot disks Connector : : - 1 x SPI TPM Header : - 1 x Power LED and Speaker Header : - 2 x RGB LED Headers* : - 2 x Addressable LED Headers** : - 1 x CPU Fan Connector (4-pin)*** : - 1 x CPU/Water Pump Fan Connector (4-pin) (Smart Fan Speed Control)**** : - 4 x Chassis/Water Pump Fan Connectors (4-pin) (Smart Fan Speed Control)***** : - 1 x 24 pin ATX Power Connector (Hi-Density Power Connector) : - 1 x 8 pin 12V Power Connector (Hi-Density Power Connector) : - 1 x 4 pin 12V Power Connector (Hi-Density Power Connector) : - 1 x Front Panel Audio Connector : - 2 x USB 2.0 Headers (Support 4 USB 2.0 ports) (Supports ESD Protection) : - 2 x USB 3.2 Gen1 Headers (Support 4 USB 3.2 Gen1 ports) (Supports ESD Protection) : Support in total up to 12V/3A, 36W LED Strip : Support in total up to 5V/3A, 15W LED Strip : The CPU Fan Connector supports the CPU fan of maximum 1A (12W) fan power. : The CPU/Water Pump Fan supports the water cooler fan of maximum 2A (24W) fan power. : The Chassis/Water Pump Fan supports the water cooler fan of maximum 2A (24W) fan power. CPU_FAN2/WP, CHA_FAN1/WP, CHA_FAN2/WP, CHA_FAN3/WP and CHA_FAN4/WP can auto detect if 3-pin or 4-pin fan is in use. Rear Panel I/O : : - 2 x Antenna Mounting Points : - 1 x PS/2 Mouse/Keyboard Port : - 1 x HDMI Port : - 1 x DisplayPort 1.4 : - 1 x Optical SPDIF Out Port : - 1 x USB 3.2 Gen2 Type-A Port (10 Gb/s) (Supports ESD Protection) : - 1 x USB 3.2 Gen2 Type-C Port (10 Gb/s) (Supports ESD Protection) : - 4 x USB 3.2 Gen1 Ports (ASMedia ASM1074 hub) (Supports ESD Protection) : - 2 x USB 2.0 Ports (Supports ESD Protection) : - 1 x RJ-45 LAN Port with LED (ACT/LINK LED and SPEED LED) : - 1 x Clear CMOS Button : - HD Audio Jacks: Rear Speaker / Central / Bass / Line in / Front Speaker / Microphone (Gold Audio Jacks) Software and UEFI : Software : : - ASRock Motherboard Utility (A-Tuning) : - ASRock Polychrome SYNC UEFI : : - ASRock Full HD UEFI : - ASRock Instant Flash : These utilities can be downloaded from ASRock Live Update & APP Shop. Support CD : : - Drivers, Utilities, AntiVirus Software (Trial Version), Google Chrome Browser and Toolbar Accessories : : - Quick Installation Guide, Support CD : - 2 x SATA Data Cables : - 2 x Screws for M.2 Sockets Hardware Monitor : : - Temperature Sensing: CPU, CPU/Water Pump, Chassis/Water Pump Fans : - Fan Tachometer: CPU, CPU/Water Pump, Chassis/Water Pump Fans : - Quiet Fan (Auto adjust chassis fan speed by CPU temperature): CPU, CPU/Water Pump, Chassis/Water Pump Fans : - Fan Multi-Speed Control: CPU, CPU/Water Pump, Chassis/Water Pump Fans : - Voltage monitoring: +12V, +5V, +3.3V, CPU Vcore, CPU VDDCR_SOC, DRAM, VPPM, 1.05V_PROM_S5, +1.8V, VDDP Form Factor : : - Micro ATX Form Factor: 9.6-in x 9.6-in, 24.4 cm x 24.4 cm : - 2oz Copper PCB OS : : - Microsoft® Windows® 10 64-bit / 11 64-bit