| SPECIFICATIONS |
| Brand | ASRock |
| Series | Pro |
| Model | B550M-ITX/ac |
| CPU | Supports AMD AM4 Socket Ryzen 3000, 4000 G-Series and 5000 Series Desktop Processors* |
| Digi Power design |
| 8 Power Phase design |
| *Not compatible with AMD Ryzen 5 3400G and Ryzen 3 3200G. |
| Chipset | AMD B550 |
| Memory | Dual Channel DDR4 Memory Technology |
| 2x 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 & 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* |
| Max. capacity of system memory: 64GB** |
| Supports Extreme Memory Profile (XMP) memory modules |
| 15μ Gold Contact in DIMM Slots |
| **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, VPPM, 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.** |
| Dual graphics output: support HDMI and DisplayPort 1.4 ports by independent display controllers |
| Supports HDMI 2.1 with max. resolution up to 4K x 2K (4096x2160) @ 60Hz |
| Supports DisplayPort 1.4 Input with max. resolution up to 5K (5120x2880)@120Hz |
| 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 |
| *Actual support may vary by CPU |
| **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 |
| Wireless LAN | Intel 802.11ac WiFi Module |
| Supports IEEE 802.11a/b/g/n/ac |
| Supports Dual-Band (2.4/5 GHz) |
| Supports high speed wireless connections up to 433Mbps |
| Supports Bluetooth 4.2 High speed class II |
| Slots | AMD Ryzen series CPUs (Matisse) |
| - 1x PCI Express 4.0 x16 Slot (PCIE1: x16 mode)* |
| AMD Ryzen series APUs (Renoir) |
| - 1x PCI Express 3.0 x16 Slot (PCIE1: x16 mode)* |
| - 1x Vertical M.2 Socket (Key E) with the bundled WiFi-802.11ac module (on the rear I/O) |
| *Supports PCIe riser cards to extend x8/x8 slots |
| Supports NVMe SSD as boot disks |
| Storage | 4x SATA3 6.0 Gb/s Connectors, support RAID (RAID 0, RAID 1 and RAID 10), NCQ, AHCI and Hot Plug |
| 1x Hyper M.2 Socket (M2_1), supports M Key type 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) (with Renoir)** |
| *Supports NVMe SSD as boot disks |
| Supports ASRock U.2 Kit |
| Connector | 1x RGB LED Header* |
| 1x Addressable LED Header** |
| 1x CPU Fan Connector (4-pin)*** |
| 2x Chassis/Water Pump Fan Connectors (4-pin) (Smart Fan Speed Control)**** |
| 1x 24 pin ATX Power Connector |
| 1x 8 pin 12V Power Connector |
| 1x Front Panel Audio Connector |
| 1x USB 2.0 Header (Supports 2 USB 2.0 ports) (Supports ESD Protection) |
| 1x USB 3.2 Gen1 Header (Supports 2 USB 3.2 Gen1 ports) (Supports ESD Protection) |
| *Supports in total up to 12V/3A, 36W LED Strip |
| **Supports in total up to 5V/3A, 15W LED Strip |
| ***The CPU Fan Connector supports the CPU 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/WP and CHA_FAN2/WP can auto detect if 3-pin or 4-pin fan is in use. |
| Rear Panel I/O | 2x Antenna Ports |
| 1x PS/2 Mouse/Keyboard Port |
| 1x HDMI Port |
| 1x DisplayPort 1.4 |
| 2x USB 2.0 Ports (Supports ESD Protection) |
| 3x USB 3.2 Gen1 Type-A Ports (Supports ESD Protection) |
| 1x USB 3.2 Gen1 Type-C Port (Supports ESD Protection) |
| 1x RJ-45 LAN Port with LED (ACT/LINK LED and SPEED LED) |
| HD Audio Jacks: Line in / Front Speaker / Microphone |
| Software | ASRock Motherboard Utility (A-Tuning) |
| ASRock Polychrome SYNC |
| ASRock XFast LAN |
| UEFI | ASRock Full HD UEFI |
| ASRock Instant Flash |
| *These utilities can be downloaded from ASRock Live Update & APP Shop. |
| Support CD | Drivers, Utilities, AntiVirus Software (Trial Version), Google Chrome Browser and Toolbar |
| Accessories | Quick Installation Guide, Support CD, I/O Shield |
| 2x SATA Data Cables |
| 2x ASRock WiFi 2.4/5 GHz Antennas |
| Hardware Monitor | Temperature Sensing: CPU, Chassis/Water Pump Fans |
| Fan Tachometer: CPU, Chassis/Water Pump Fans |
| Quiet Fan (Auto adjust chassis fan speed by CPU temperature): CPU, Chassis/Water Pump Fans |
| Fan Multi-Speed Control: CPU, Chassis/Water Pump Fans |
| Voltage monitoring: 12V, 5V, 3.3V, CPU Vcore |
| Form Factor | Mini-ITX Form Factor: 6.7-in x 6.7-in, 17.0 cm x 17.0 cm |
| Solid Capacitor design |
| OS | Microsoft Windows 10 64-bit |
| Certifications | FCC, CE |
| ErP/EuP ready (ErP/EuP ready power supply is required) |
| Warranty Information |
| Warranty | 3 Year Warranty |
In stock with Wootware
