Asrock Motherboard B550 PRO 4

• Product Number: B550PRO4

CPU

• Supports AMD AM4 Socket Ryzen™ 3000, 3000 G-Series, 4000 G-Series, 5000 and 5000 G-Series Desktop Processors*
  
• Digi Power design
  
• 8 Power Phase design

Chipset

• AMD B550

Memory

• Dual Channel DDR4 Memory Technology
• 4 x DDR4 DIMM Slots
• AMD Ryzen series APUs (Picasso) support DDR4 3400+(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

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 D-Sub ports by independent display controllers
  
• Supports HDMI 2.1 with max. resolution up to 4K x 2K (4096x2160) @ 60Hz
  
• Supports D-Sub with max. resolution up to 1920x1200 @ 60Hz
  
• 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 Port***
  
• Supports 4K Ultra HD (UHD) playback with HDMI 2.1 Port
  
• Supports Microsoft PlayReady

Audio

• 7.1 CH HD Audio with Content Protection (Realtek ALC1220/ALC1200 Audio Codec)
  
• Premium Blu-ray Audio support
  
• Supports Surge Protection
  
• PCB Isolate Shielding
  
• Individual PCB Layers for R/L Audio Channel
  
• Nahimic Audio

LAN

• PCIE x1 Gigabit LAN 10/100/1000 Mb/s
  
• Realtek RTL8111H
  
• Supports Wake-On-LAN
  
• Supports Lightning/ESD Protection
  
• Supports Energy Efficient Ethernet 802.3az
  
• Supports PXE

Slots

• 2 x PCI Express 3.0 x1 Slots
  
• Supports AMD Quad CrossFireX™ and CrossFireX™
  
• 1 x M.2 Socket (Key E), supports type 2230 WiFi/BT PCIe WiFi 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 2260/2280/22110 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_3), supports M Key type 2242/2260/2280 M.2 SATA3 6.0 Gb/s module and M.2 PCI Express module up to Gen3 x2 (16 Gb/s)

Connector

• 1 x COM Port Header
• 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
• 1 x 8 pin 12V Power Connector
• 1 x 4 pin 12V Power Connector
• 1 x Front Panel Audio Connector
• 2 x USB 2.0 Headers (Support 4 USB 2.0 ports) (Supports ESD Protection)
• 1 x USB 3.2 Gen1 Header (Supports 2 USB 3.2 Gen1 ports) (Supports ESD Protection)

Rear Panel I/O

• Antenna Bracket
  
• 1 x PS/2 Mouse/Keyboard Port
  
• 1 x D-Sub Port
  
• 1 x HDMI 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 (Supports ESD Protection)
  
• 1 x RJ-45 LAN Port with LED (ACT/LINK LED and SPEED LED)
  
• HD Audio Jacks: Line in / Front Speaker / Microphone

Software and UEFI

• Software
  
  • ASRock Motherboard Utility (A-Tuning)
  • ASRock Polychrome SYNC
    
• UEFI
  
  • ASRock Full HD UEFI
    
  • ASRock Instant Flash

Accessories

• Quick Installation Guide, Support CD, I/O Shield
  
• 2 x SATA Data Cables
  
• 3 x Screws for M.2 Sockets
  
• 1 x Standoff for M.2 Socket

Form Factor

• ATX Form Factor: 12.0-in x 9.6-in, 30.5 cm x 24.4 cm
  
• Solid Capacitor design

OS

• Microsoft Windows® 10 64-bit / 11 64-bit