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| Basic Information | ||
| Supported CPU | - Supports 3rd Gen AMD AM4 Ryzen/ future AMD Ryzen Processors - Digi Power design - 8 Power Phase design |
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| Chipset | AMD B550 | |
| Form Factor | - ATX Form Factor: 12.0-in x 9.6-in, 30.5 cm x 24.4 cm - Solid Capacitor design - 2oz Copper PCB |
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| 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 |
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| 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 - Nahimic Audio |
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| Expansion Slots | ||
| PCI | 2 x PCI Express 3.0 x1 Slots | |
| M.2 Socket | -1 x M.2 Socket (Key E), supports type 2230 WiFi/BT module | |
| Memory | ||
| Type | DDR4 | |
| Slots | AMD Ryzen series CPUs (Matisse) - 2 x PCI Express x16 Slots (PCIE1: Gen4x16 mode; PCIE3: Gen3 x4 mode) AMD Ryzen series APUs - 2 x PCI Express x16 Slots (PCIE1: Gen3x16 mode; PCIE3: Gen3 x4 mode) - Supports AMD Quad CrossFireX and CrossFireX |
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| Supported Memory | - Dual Channel DDR4 Memory Technology - 4 x DDR4 DIMM Slots - 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 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 - Supports Extreme Memory Profile (XMP) memory modules - 15μ Gold Contact in DIMM Slots |
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| Maximum Memory | 128GB | |
| Graphics | ||
| 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 |
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| Connector & Ports | ||
| HDMI | 1 x HDMI Port | |
| USB (s) | - 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) |
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| LAN Port (s) | - 1 x RJ-45 LAN Port with LED (ACT/LINK LED and SPEED LED) | |
| Supported Storage | - 6 x SATA3 6.0 Gb/s Connectors, support RAID (RAID 0, RAID 1 and RAID 10), NCQ, AHCI and Hot Plug | |
| Internal I/O Ports | - 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 - 1 x COM Port 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) |
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| TPM (Trusted Platform Module ) | - 1 x SPI TPM Header | |
| Others | ||
| Special Features | 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 |
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| Warranty Details | ||
| Warranty Details | 03 Years Warranty | |
The ASRock B550 Pro4 DDR4 AMD Motherboard is engineered for gamers, PC enthusiasts, and professionals who demand high-performance, stability, and future-proof expandability. Designed for 3rd Gen AMD AM4 Ryzen processors and compatible with upcoming Ryzen CPUs, the B550 Pro4 ensures your system stays ready for next-generation upgrades.
Featuring support for DDR4 memory up to 4733+ MHz (OC), this motherboard delivers ultra-fast multitasking, smooth gaming, and seamless productivity. Its 8-phase power design guarantees stable performance even under heavy workloads, making it perfect for gaming rigs, content creation, or workstation builds.
The motherboard offers flexible storage options with 6 SATA3 ports, 1 Hyper M.2 slot, and 1 standard M.2 slot, allowing for high-speed NVMe SSDs and ample storage expansion. With robust connectivity and efficient cooling support, the ASRock B550 Pro4 combines performance, reliability, and upgradeability in a feature-packed motherboard.
CPU Compatibility: Supports 3rd Gen AMD AM4 Ryzen and future Ryzen processors
Memory Support: DDR4 up to 4733+ MHz (OC) for high-speed performance
Storage Options: 6 × SATA3, 1 × Hyper M.2, 1 × M.2 slot for flexible expansion
Power Design: 8-phase stable power delivery for consistent performance
High-Speed Connectivity: Ideal for gaming, content creation, and workstation builds
Future-Proof Upgradeability: Designed to accommodate next-generation Ryzen CPUs
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