X370 Pro4 Features: ASRock Super Alloy Supports AMD Socket AM4 A-Series APUs (Bristol Ridge) and Ryzen CPUs (Summit Ridge & Raven Ridge) Supports DDR4 3200+ (OC) (Ryzen CPU) / 2400 (A-series APU) 2 PCIe 3.0 x16, 4 PCIe 2.0 x1 AMD Quad CrossFireX™ Graphics Output: HDMI, DVI-D, D-Sub 7.1 CH HD Audio (Realtek ALC892 Audio Codec), ELNA Audio Caps 6 SATA3, 1 Ultra M.2 (PCIe Gen3 x4), 1 M.2 (SATA3) 8 USB 3.0 (1 Type-C, 2 Front, 5 Rear) Realtek Gigabit LAN Specifications: Unique Feature ASRock Super Alloy Premium Power Choke Sapphire Black PCB High Density Glass Fabric PCB 2oz Copper PCB ASRock Ultra M.2 (PCIe Gen3 x4) ASRock Full Spike Protection (for all USB, Audio, LAN Ports) ASRock Live Update & APP Shop CPU Supports AMD Socket AM4 A-Series APUs (Bristol Ridge) and Ryzen Series CPUs (Vermeer, Cezanne, Renoir, Matisse, Picasso, Summit Ridge, Raven Ridge and Pinnacle Ridge) Digi Power design 9 Power Phase design Chipset AMD Promontory X370 Memory Dual Channel DDR4 Memory Technology 4 x DDR4 DIMM Slots AMD Ryzen series CPUs (Matisse) support DDR4 3200 / 2933 / 2667 / 2400 / 2133 ECC & non-ECC, un-buffered memory AMD Ryzen series CPUs (Pinnacle Ridge) support DDR4 3200+(OC) / 2933(OC) / 2667 / 2400 / 2133 ECC & non-ECC, un-buffered memory AMD Ryzen series CPUs (Picasso) support DDR4 2933 / 2667 / 2400 / 2133 non-ECC, un-buffered memory AMD Ryzen series CPUs (Summit Ridge) support DDR4 3200+(OC) / 2933(OC) / 2667 / 2400 / 2133 ECC & non-ECC, un-buffered memory AMD Ryzen series CPUs (Raven Ridge) support DDR4 3200+(OC) / 2933 / 2667 / 2400 / 2133 non-ECC, un-buffered memory AMD 7th Gen A-Series APUs support DDR4 2400 / 2133 ECC & non-ECC, un-buffered memory Max. capacity of system memory: 64GB 15μ Gold Contact in DIMM Slots BIOS 128Mb AMI UEFI Legal BIOS with multilingual GUI support Supports "Plug and Play" ACPI 5.1 compliance wake up events Supports jumperfree SMBIOS 2.3 support DRAM Voltage multi-adjustment Graphics Integrated AMD Radeon™ Vega Series Graphics in Ryzen Series APU Integrated AMD Radeon™ R-Series Graphics in A-series APU DirectX 12, Pixel Shader 5.0 Shared memory default 2GB. Max Shared memory supports up to 16GB. Three graphics output options: D-Sub, DVI-D and HDMI Supports Triple Monitor Supports HDMI with max. resolution up to 4K x 2K (4096x2160) @ 24Hz / (3840x2160) @ 30Hz Supports DVI-D with max. resolution up to 1920x1200 @ 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 Port (Compliant HDMI monitor is required) Supports HDCP 1.4 with DVI-D and HDMI Ports Supports Full HD 1080p Blu-ray (BD) playback with DVI-D and HDMI Ports Audio 7.1 CH HD Audio with Content Protection (Realtek ALC892 Audio Codec) Premium Blu-ray Audio support Supports Surge Protection ELNA Audio Caps LAN PCIE x1 Gigabit LAN 10/100/1000 Mb/s Realtek RTL8111GR Supports Wake-On-LAN Supports Lightning/ESD Protection Supports LAN Cable Detection Supports Energy Efficient Ethernet 802.3az Supports PXE Slots AMD Ryzen series CPUs (Matisse, Summit Ridge and Pinnacle Ridge) 2 x PCI Express 3.0 x16 Slots (single at x16 (PCIE2); dual at x16 (PCIE2) / x4 (PCIE4)) AMD 7th A-Series APUs 2 x PCI Express 3.0 x16 Slots (single at x8 (PCIE2); dual at x8 (PCIE2) / x2 (PCIE4)) AMD Ryzen series CPUs (Picasso, Raven Ridge) 2 x PCI Express 3.0 x16 Slots (single at x8 (PCIE2); dual at x8 (PCIE2) / x4 (PCIE4)) AMD Athlon series CPUs 2 x PCI Express 3.0 x16 Slots (single at x4 (PCIE2); dual at x4 (PCIE2) / x2 (PCIE4)) 4 x PCI Express 2.0 x1 Slots Supports AMD Quad CrossFireX™ and CrossFireX™ Storage 4 x SATA3 6.0 Gb/s Connectors, support RAID (RAID 0, RAID 1 and RAID 10), NCQ, AHCI and Hot Plug 2 x SATA3 6.0 Gb/s Connectors by ASMedia ASM1061, support NCQ, AHCI and Hot Plug 1 x Ultra M.2 Socket (M2_1), supports M Key type 2242/2260/2280 M.2 PCI Express module up to Gen3 x4 (32 Gb/s) (with Matisse, Picasso, Summit Ridge, Raven Ridge and Pinnacle Ridge) or Gen3 x2 (16 Gb/s) (with A-Series APU, and Athlon series APU) Connector 1 x COM Port Header 1 x TPM Header 1 x Power LED and Speaker Header 1 x RGB LED Header 1 x AMD Fan LED Header 1 x CPU Fan Connector (4-pin) 3 x Chassis Fan Connectors (4-pin) (Smart Fan Speed Control) 1 x 24 pin ATX Power Connector 1 x 8 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 3.1 Gen1 Header (Supports 2 USB 3.1 Gen1 ports) (Supports ESD Protection) 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) 1 x USB 3.1 Gen1 Type-C Port (Supports ESD Protection) 5 x USB 3.1 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 A-Tuning ASRock RGB LED UEFI ASRock Full HD UEFI ASRock Instant Flash ASRock Easy RAID Installer 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 2 x Screws for M.2 Sockets Hardware Monitor CPU, Chassis temperature sensing CPU, Chassis Fan Tachometer CPU, Chassis Quiet Fan CPU, Chassis Fan multi-speed control Voltage monitoring: +12V, +5V, +3.3V, Vcore Form Factor ATX Form Factor: 12.0-in x 8.8-in, 30.5 cm x 22.4 cm Solid Capacitor design OS Microsoft Windows® 10 64-bit / 11 64-bit Certifications FCC, CE ErP/EuP ready (ErP/EuP ready power supply is required)