Unique Feature ASRock Super Alloy - Premium 50A Power Choke - Sapphire Black PCB - High Density Glass Fabric PCB ASRock Hyper M.2 (PCIe Gen4x4) ASRock Full Spike Protection (for all USB, Audio, LAN Ports) ASRock Live Update and APP Shop

	CPU - Supports 3rd Gen AMD AM4 RyzenTM / future AMD RyzenTM Processorsnote1 - 6 Power Phase design Note1: Not compatible with AMD RyzenTM 5 3400G and RyzenTM 3 3200G.

	Chipset - AMD B550

Memory - Dual Channel DDR4 Memory Technology - 2 x DDR4 DIMM Slots - AMD Ryzen series CPUs (Matisse) support DDR4 4600+(OC) / 4533(OC) / 4466(OC) / 4400(OC) / 4333(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 and 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 and non-ECC, un-buffered memory - Max. capacity of system memory: 64GBnote2 - Supports Extreme Memory Profile (XMP) memory modules - 15Mu Gold Contact in DIMM Slots SR: Single rank DIMM, 1Rx4 or 1Rx8 on DIMM module label DR: Dual rank DIMM, 2Rx4 or 2Rx8 on DIMM module label Note2: 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, VDDP Voltage Multi-adjustment

Graphics - Integrated AMD Radeon Vega Series Graphics in Ryzen Series APUnote1 - DirectX 12, Pixel Shader 5.0 - Shared memory default 2GB. Max Shared memory supports up to 16GB.note2 - Three graphics output options: D-Sub, DVI-D and HDMI - Supports Triple Monitor - Supports HDMI 2.1 with max. resolution up to 4K x 2K (4096x2160) at 60Hz - Supports DVI-D with max. resolution up to 1920x1200 at 60Hz - Supports D-Sub with max. resolution up to 1920x1200 at 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 DVI-D and HDMI 2.1 Ports - Supports 4K Ultra HD (UHD) playback with HDMI 2.1 Port - Supports Microsoft PlayReady Note1: Actual support may vary by CPU Note2: The Max shared memory 16GB requires 32GB system memory installed.

	Audio - 7.1 CH HD Audio (Realtek ALC887 Audio Codec) - Supports Surge Protection

	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 AMD Ryzen series CPUs (Matisse) - 1 x PCI Express 4.0 x16 Slot (PCIE1: x16 mode)note1 AMD Ryzen series APUs - 1 x PCI Express 3.0 x16 Slot (PCIE1: x16 mode)note1 - 1 x PCI Express 3.0 x1 Slot Note1: Supports NVMe SSD as boot disks

	Storage - 4 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, supports M Key type 2242/2260/2280 M.2 SATA3 6.0 Gb/s module and M.2 PCI Express module up to Gen4x4 (64 Gb/s) (with Matisse) or Gen3x4 (32 Gb/s)note1 Note1: Supports NVMe SSD as boot disks Supports ASRock U.2 Kit

Connector - 1 x SPI TPM Header - 1 x COM Port Header - 1 x Chassis Intrusion and Speaker Header - 1 x CPU Fan Connector (4-pin)note1 - 2 x Chassis Fan Connectors (4-pin) (Smart Fan Speed Control)note2 - 1 x 24 pin ATX 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) Note1: The CPU Fan Connector supports the CPU fan of maximum 1A (12W) fan power. Note2: The Chassis Fan supports the water cooler fan of maximum 1A (12W) fan power. CHA_FAN2 can auto detect if 3-pin or 4-pin fan is in use.

	Rear Panel I/O - 1 x PS/2 Mouse/Keyboard Port - 1 x D-Sub Port - 1 x DVI-D Port - 1 x HDMI Port - 2 x USB 2.0 Ports (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 XFast LAN UEFI - ASRock Full HD UEFI - ASRock Instant Flash Note: These utilities can be downloaded from ASRock Live Update and APP Shop.

	Support CD - Drivers, Utilities, AntiVirus Software (Trial Version), Google Chrome Browser and Toolbar

	Accessories - Quick Installation Guide, Support CD, I/O Shield - 2 x SATA Data Cables - 1 x Screw for M.2 Socket

	Hardware Monitor - Temperature Sensing: CPU, Chassis Fans - Fan Tachometer: CPU, Chassis Fans - Quiet Fan (Auto adjust chassis fan speed by CPU temperature): CPU, Chassis Fans - Fan Multi-Speed Control: CPU, Chassis Fans - CASE OPEN detection - Voltage monitoring: +12V, +5V, +3.3V, CPU Vcore

	Form Factor - Micro ATX Form Factor: 9.0-in x 7.9-in, 23.0 cm x 20.1 cm - Solid Capacitor design

	OS - Microsoft Windows 10 64-bit

	Certifications - FCC, CE - ErP/EuP ready (ErP/EuP ready power supply is required)

	Item Dimension (L inchxW inchxH inch) 11 x 10 x 3 Weight 3.00 LB Warranty Information 3 Years