Enhance your computing experience while enjoying a compact form factor system using theASRock B550M-ITX/AC AM4 Mini-ITX Motherboard. Powered by the AMD B550 chipset, this motherboard supports third-generation AMD Ryzen processors with the AM4 socket for high-end video games and content creation. The chipset takes full advantage of the large PCIe 4.0 data bandwidth to handle demanding tasks such as 4K live streaming, video editing, and gaming at high settings. Up to 64GB of dual-channel ECC and non-ECC DDR4 RAM, reaching 4733 MHz when overclocked, can be installed across two memory slots to improve the system’s multitasking capabilities and speed. The mini-ITX motherboard also features advanced cooling and supports one M.2 SSD alongside up to four SATA III storage drives, which can be put into RAID 0, 1, or 10 configurations. Its PCIe 4.0 x16 slot can accommodate a high-power graphics card or other compatible expansions. You can take advantage of AMD Ryzen processors with integrated graphics by connecting monitors to the motherboard’s DisplayPort 1.4 and HDMI 2.1 ports.
Connect peripherals such as mice and keyboards to the USB 2.0 Type-A USB 3.2 Gen 1 Type-A ports while reserving the USB 3.2 Gen 2 Type-C for compatible devices to transfer data at up to 10 Gb/s. The B550M-ITX/AC also features fast network connections through its Gigabit Ethernet port and built-in 802.11ac Wi-Fi, which wirelessly transfers up to 433 Mb/s, providing you with the bandwidth needed for online games, video streaming, and live stream broadcasts. Other features include audio driven by the Realtek ALC887 7.1-channel audio codec that is designed to deliver immersive experiences. Windows 10 64-bit is required to take advantage of all the motherboard’s features.
PCIe 4.0 Memory Bandwidth
The ASRock B550M-ITX/AC pairs third-generation AMD Ryzen processors with high PCIe 4.0 memory bandwidth through the B550 chipset for maximum performance.
Storage and Memory
One M.2 slot is available, supporting up to type 2280 NVMe PCIe and SATA SSDs.
Four SATA III ports are available for hard drives and 2.5″ SSDs.
Supports RAID 0, 1, and 10.
Up to 64GB of dual-channel ECC DDR4-4733 (OC) memory can be installed across two slots.
Electrical Performance
The motherboard has a digital 8 power phase design with Dr. MOS is optimized to deliver up to 50A of continuous current through each phase. High-quality 60A alloy chokes alongside durable capacitors deliver power to critical components such as the CPU.
Durable Design
M.2 SSD slot armor helps to maintain optimal temperatures for high performance.
The PCB has a high-density glass fabric design that reduces gaps between layers to protect against electrostatic discharge and humidity.
Comprised of various technologies, ASRock Full Spike Protection helps to prevent damage to your motherboard’s components from unexpected voltage spikes.
Fully Connected
In addition to its USB 2.0 ports, this motherboard includes USB 3.2 Gen 1 ports that can transfer data at up to 5 Gb/s with compatible devices. The USB 3.2 Gen 2 Type-C port has a maximum throughput of 10 Gb/s.
Integrated Graphics
The DisplayPort 1.4 HDMI 1.2 ports support 4K monitors, which allow you to take advantage of AMD Ryzen CPUs that have integrated graphics.
Fast Network Connectivity
A Gigabit Ethernet port with enhanced lightning and electrostatic discharge protection high-speed network wired connections with compatible devices.
Built-in 802.11ac Wi-Fi that delivers up to 433 Mb/s.
Bluetooth 4.2 technology allows you to pair wireless devices such as headphones, keyboards, mice, and more.
Immersive Audio
The integrated Realtek ALC887 audio technology is designed to deliver detailed sound with 7.1-channel playback.
Polychrome RGB Lighting
ASRock Polychrome technology allows you to connect, customize, and control lighting equipment such as RGB LEDs and light strips on the onboard RGB headers. You can choose from a variety of lighting presets, which can be synchronized with capable peripherals such as keyboards, mice, CPU coolers, and more. The addressable RGB headers can detect the number of LEDs on a compatible device to further tailor the lighting effects.
Specification :
Unique Feature
ASRock Super Alloy
– Premium 60A Power Choke
– 50A Dr.MOS
– Sapphire Black PCB
– High Density Glass Fabric PCB
Intel® 802.11ac WiFi
ASRock Full Coverage M.2 Heatsink
ASRock Hyper M.2 (PCIe Gen4x4)
ASRock Full Spike Protection (for all USB, Audio, LAN Ports)
SR: Single rank DIMM, 1Rx4 or 1Rx8 on DIMM module label
DR: Dual rank DIMM, 2Rx4 or 2Rx8 on DIMM module label
**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 (4096×2160) @ 60Hz
– Supports DisplayPort 1.4 Input with max. resolution up to 5K (5120×2880)@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)
– 1 x PCI Express 4.0 x16 Slot (PCIE1: x16 mode)*
AMD Ryzen series APUs (Renoir)
– 1 x PCI Express 3.0 x16 Slot (PCIE1: x16 mode)*
– 1 x 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
– 4 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 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
– 1 x RGB LED Header*
– 1 x Addressable LED Header**
– 1 x CPU Fan Connector (4-pin)***
– 2 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
– 1 x USB 2.0 Header (Supports 2 USB 2.0 ports) (Supports ESD Protection)
– 1 x 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
– 2 x Antenna Ports
– 1 x PS/2 Mouse/Keyboard Port
– 1 x HDMI Port
– 1 x DisplayPort 1.4
– 2 x USB 2.0 Ports (Supports ESD Protection)
– 3 x USB 3.2 Gen1 Type-A Ports (Supports ESD Protection)
– 1 x USB 3.2 Gen1 Type-C Port (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 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
– 2 x SATA Data Cables
– 2 x 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)
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