B550M Pro4
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Supports AMD AM4 Socket Ryzen 3000, 3000 G-Series, 4000 G-Series, 5000 and 5000 G-Series Desktop Processors*
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8 Power Phase Design, Digi Power
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Supports DDR4 4733+ (OC)
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1 PCIe 4.0 x16, 1 PCIe 3.0 x16, 1 PCIe 3.0 x1, 1 M.2 Key E for WiFi
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Graphics Output Options: HDMI, DisplayPort, D-Sub
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AMD CrossFireX
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7.1 CH HD Audio (Realtek ALC1220/ALC1200 Audio Codec), Nahimic Audio
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6 SATA3, 1 Hyper M.2 (PCIe Gen4 x4), 1 M.2 (PCIe Gen3 x2 & SATA3)
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2 USB 3.2 Gen2 (Rear Type A+C), 8 USB 3.2 Gen1 (4 Front, 4 Rear)
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Realtek Gigabit LAN
















SPECIFICATIONS:
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 50A Power Choke – Sapphire Black PCB – High Density Glass Fabric PCB – 2oz Copper PCB 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 – 8 Power Phase design
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*
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.** – Three graphics output options: D-Sub, HDMI and DisplayPort 1.4 – Supports Triple Monitor – Supports HDMI 2.1 with max. resolution up to 4K x 2K (4096×2160) @ 60Hz – Supports DisplayPort 1.4 with max. resolution up to 5K (5120×2880)@120Hz – Supports D-Sub with max. resolution up to 1920×1200 @ 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 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 ALC1220/ALC1200 Audio Codec) – Premium Blu-ray Audio support – Supports Surge Protection – PCB Isolate Shielding – 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
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 – 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 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)**
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 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)









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