Learn more about ASRock B450M/AC R2.0 Model Brand ASRock Model B450M/AC R2.0 Supported CPU CPU Socket Type AM4 CPU Type Supports AMD AM4 Socket Ryzen 2000, 3000 and 5000 Series Desktop Processors Chipsets Chipset AMD Promontory B450 Memory Number of Memory Slots 4x288pin (DDR4) Memory Standard 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** For Ryzen Series CPUs (Picasso and Raven Ridge), ECC is only supported with PRO CPUs. Maximum Memory Supported 128GB** 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. Channel Supported Dual Channel Expansion Slots PCI Express 3.0 x16 AMD Ryzen series CPUs (Matisse, Summit Ridge and Pinnacle Ridge)- 1 x PCI Express 3.0 x16 Slot (PCIE1: x16 mode)*AMD Ryzen series CPUs (Picasso, Raven Ridge)- 1 x PCI Express 3.0 x16 Slot (PCIE1: x8 mode)*AMD Athlon series CPUs- 1 x PCI Express 3.0 x16 Slot (PCIE1: x4 mode)** Supports NVMe SSD as boot disks PCI Express 2.0 x16 AMD Ryzen series CPUs (Summit Ridge and Pinnacle Ridge)- 1 x PCI Express 2.0 x16 Slot (PCIE2: x4 mode)AMD Ryzen series CPUs (Raven Ridge)- 1 x PCI Express 2.0 x16 Slot (PCIE2: x4 mode)AMD Athlon series CPUs- 1 x PCI Express 2.0 x16 Slot (PCIE2: x4 mode) Other Slots 1 x Vertical M.2 Socket (Key E) with the bundled WiFi-802.11ac module (on the rear I/O) Storage Devices SATA 6Gb/s 4 x SATA3 6.0Gb/s Connectors, support RAID, NCQ, AHCI and Hot Plug M.2 1 x Ultra M.2 Socket (M2_1), supports M Key type 2242/2260/2280 M.2 PCI Express module up to Gen3 x4 (32Gb/s) (with Matisse, Picasso, Summit Ridge, Raven Ridge and Pinnacle Ridge) or Gen3 x2 (16Gb/s) (with Athlon series APU)** Supports NVMe SSD as boot disks* Supports ASRock U.2 Kit SATA RAID 0/1/10 Onboard Video Onboard Video Chipset Integrated AMD Radeon Vega Series Graphics in Ryzen Series APU*DirectX 12, Pixel Shader 5.0Shared memory default 2GB. Max Shared memory supports up to 16GB.**Supports HDMI 1.4 with max. resolution up to 4K x 2K (4096x2160) @ 24Hz / (3840x2160) @ 30HzSupports Auto Lip Sync, Deep Color (12bpc), xvYCC and HBR (High Bit Rate Audio) with HDMI 1.4 Port (Compliant HDMI monitor is required)Supports HDCP 1.4 with HDMI 1.4 PortSupports 4K Ultra HD (UHD) playback with HDMI 1.4 Port* Actual support may vary by CPU** The Max shared memory 16GB requires 32GB system memory installed Onboard Audio Audio Chipset Realtek ALC892/897 Audio Channels 7.1 CH HD Audio with Content Protection Supports Surge Protection Onboard LAN LAN Chipset Realtek RTL8111H Max LAN Speed 1Gbps Wireless LAN Intel 802.11 ac Wi-Fi ModuleSupports IEEE 802.11 a/b/g/n/acSupports Dual-Band (2.4/5 GHz)Supports high speed wireless connections up to 433 Mbps Bluetooth Bluetooth 4.2 / 3.0 + High speed class II Rear Panel Ports Back I/O Ports 2 x Antenna Ports1 x HDMI Port2 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 Internal I/O Connectors Onboard USB 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) Other Connectors 1 x Chassis Intrusion Header1 x Power LED and Speaker Header1 x RGB LED Header*1 x Addressable LED Header**1 x AMD Fan LED Header***1 x CPU Fan Connector (4-pin)****1 x Chassis Fan Connector (3-pin)*****1 x Chassis/Water Pump Fan Connector (4-pin) (Smart Fan Speed Control)******1 x Front Panel Audio Connector1 x AMD LED Fan USB Header*Supports in total up to 12V/3A, 36W LED Strip.**Supports in total up to 5V/3A, 15W LED Strip.***The AMD Fan LED Header supports LED strips of maximum load of 3A (36W) and length up to 2.5M.****The CPU Fan Connector supports the CPU fan of maximum 1A (12W) fan power.*****The Chassis Fan Connector supports the chassis fan of maximum 1A (12W) fan power.******The Chassis/Water Pump Fan supports the water cooler fan of maximum 2A (24W) fan power.******CHA_FAN1 can auto detect if 3-pin or 4-pin fan is in use. Physical Spec Form Factor Micro ATX LED Lighting None RGB Dimensions (W x L) 9.6" x 9.6" Power Pin 1 x 24-pin ATX Power Connector1 x 8-pin 12V Power Connector Windows 11 Compatibility Windows 11 Supported Features Features Unique Feature:ASRock Super Alloy- Premium 42A Power Choke- Sapphire Black PCB- High Density Glass Fabric PCB- 2oz Copper PCBIntel 802.11ac WiFiASRock Ultra M.2 (PCIe Gen3 x4)ASRock Full Spike Protection (for all USB, Audio, LAN Ports)ASRock Live Update & APP ShopBIOS:- 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-adjustmentSoftware and UEFI:Software- ASRock A-Tuning- ASRock Polychrome SYNC- ASRock XFast LANUEFI- ASRock Full HD UEFI- ASRock Instant Flash- ASRock Easy RAID Installer* These utilities can be downloaded from ASRock Live Update & APP Shop.Support CD:- Drivers, Utilities, AntiVirus Software (Trial Version), Google Chrome Browser and ToolbarHardware Monitor:- Temperature Sensing: CPU, Chassis, Chassis/Water Pump Fans- Fan Tachometer: CPU, Chassis, Chassis/Water Pump Fans- Quiet Fan (Auto adjust chassis fan speed by CPU temperature): CPU, Chassis, Chassis/Water Pump Fans- Fan Multi-Speed Control: CPU, Chassis, Chassis/Water Pump Fans- CASE OPEN detection- Voltage monitoring: +12V, +5V, +3.3V, VcoreOS:- Microsoft Windows 10 64-bitCertifications:- FCC, CE- ErP/EuP ready (ErP/EuP ready power supply is required) Packaging Package Contents Accessories:- Quick Installation Guide, Support CD, I/O Shield- 2 x SATA Data Cables- 2 x ASRock Wi-Fi 2.4/5 GHz Antennas- 1 x Screw for M.2 Socket
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