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ASROCK B550M STEEL LEGEND Socket AM4/ AMD B550/ DDR4/ Quad CrossFireX/ SATA3&USB3.2/ M.2/ Micro ATX Motherboard

B550M STEEL LEGEND ASROCK B550M STEEL LEGEND Socket AM4/ AMD B550/ DDR4/ Quad CrossFireX/ SATA3&USB3.2/ M.2/ Micro ATX Motherboard
B550M STEEL LEGEND ASROCK B550M STEEL LEGEND Socket AM4/ AMD B550/ DDR4/ Quad CrossFireX/ SATA3&USB3.2/ M.2/ Micro ATX Motherboard
B550M STEEL LEGEND ASROCK B550M STEEL LEGEND Socket AM4/ AMD B550/ DDR4/ Quad CrossFireX/ SATA3&USB3.2/ M.2/ Micro ATX Motherboard
B550M STEEL LEGEND ASROCK B550M STEEL LEGEND Socket AM4/ AMD B550/ DDR4/ Quad CrossFireX/ SATA3&USB3.2/ M.2/ Micro ATX Motherboard
*Image may not reflect most recent product revision
Price Alert
Part#: MB-B55MSTG
Package: RETAIL
Manufacturer: ASRock
Manufacturer Part#: B550M STEEL LEGEND
Shipping Weight: 3.00 lbs.(1.36 kg)

Price: $155.89

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Product Info Reviews Warranty

Product Info:

    Specifications

    • Mfr Part Number: 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 3rd Gen AMD AM4 Ryzen / future AMD Ryzen Processors
      • Digi Power design
      • 10 Power Phase design
    • Chipset: AMD B550
    • Memory:
      • Dual Channel DDR4 Memory Technology
      • 4 x DDR4 DIMM Slots
      • MD 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 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
      • Max. capacity of system memory: 128GB
      • Supports Extreme Memory Profile (XMP) memory modules
      • 15μ Gold Contact in DIMM Slots
    • 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
    • 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 (Matisse)
        - 2 x PCI Express x16 Slots (PCIE1: Gen4x16 mode; PCIE3: Gen3 x4 mode)
      • AMD Ryzen series APUs (Renoir)
        - 2 x PCI Express x16 Slots (PCIE1: Gen3x16 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 module
    • 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 Matisse) or Gen3x4 (32 Gb/s) (with Renoir)
      • 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)
    • 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)
    • 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
    • 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
    • Certifications:
      • FCC, CE
      • ErP/EuP ready (ErP/EuP ready power supply is required)
    *All images and descriptions are for illustrative purposes only. Visual representation of the products may not be perfectly accurate. Product specification, functions and appearance may vary by models and differ from country to country . All specifications are subject to change without notice. Although we endeavor to present the most precise and comprehensive information at the time of publication, a small number of items may contain typography or photography errors. Products may not be available in all markets. We recommend you to check with sales for exact offers.


* Product descriptions and part numbers are subject to change, and may not reflect manufacturer product changes. Please check the manufacturer's website and use the item's manufacturer part number to find the most up to date product description.

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