ASRock B550M-ITX/AC

• Supports AMD AM4 Socket Ryzen™ 3000, 3000 G-Series, 4000 G-Series, 5000 and 5000 G-Series Desktop Processors*
• Supports DDR4 4733+ (OC)
• 1 PCIe 4.0 x16
• Graphics Output: DisplayPort, HDMI
• 7.1 CH HD Audio (Realtek ALC887/897 Audio Codec)
• 4 SATA3, 1 Hyper M.2 (PCIe Gen4 x4 & SATA3)
• 6 USB 3.2 Gen1 (2 Front, 3 Rear Type-A, 1 Rear Type-C)
• Realtek Gigabit LAN
• Intel^® 802.11ac WiFi + BT 4.2

Modern and futuristic, with the attractive specifications and perfect balance, the Race Sport (RS) Edition is the evolution of the most popular PRO series motherboard.

Its unique path takes aim at mainstream DIYers that drives an undeniable performance and trustable computing experience without a pricey upgrade.

RaceSport edition, your all-rounder motherboard that fulfills every task and light-loading gaming – with style and speed!

Featuring sturdy components and completely smooth power delivery to the CPU. Plus, it offers unmatched overclocking capabilities and enhanced performance with the lowest temperature for advanced gamers as well.

The 6 Layer PCB provides stable signal traces and power shapes delivering lower temperature and higher energy efficiency for memory overclocking! Thus, it's able to support the latest memory modules with most extreme memory performance!

2 ounce copper inner layers that provide stable signal traces and power shapes! Delivering lower temperature and higher energy efficiency for overclocking.

Derived from the “built for stable and reliable” designing concept, ASRock does not compromise on any details. This motherboards is built with low-loss materials, enthusiasts are able to enjoy the boost of DDR5 memory overclocking performance by enabling the pre-tested profiles. Make sure the memory modules are Intel^® XMP/AMD EXPO™ capable and overclocking can be made so affordable, satisfying and absolutely no sweat at all.

Due to the unique electrical architecture of DDR5 DIMM, there’s a high risk of damaging the memory module if AC power isn’t disconnected properly during removal or installation. To prevent this, ASRock has implemented a trouble free protection circuit on every DDR5 motherboard, lowers the risk of damaging your memory module

Compares to conventional DIP style PCIe slot, the SMT type PCIe slot improves signal flow and maximize stability under high speed, a key breakthrough to fully support the lighting speed of the latest PCIe 5.0 standard.
The latest PCI Express 5.0 is capable to perform a breathtaking bandwidth of 128GBps, ready to unleash the full potential of future high end graphic cards.

The reinforced steel slot is capable of supporting PCI Express 5.0 standard. The various benefits include:
✔ Extra anchor points
✔ Stronger latch
✔ Ensure signal stability
✔ Make sure heavy graphics cards to be well-installed.

Whether you are using headphones, a headset, external or internal speakers, via USB, Wi-Fi, analog output or even HDMI, Nahimic Audio offers you the most engaging listening experience, vibrant and rich with details.

The Powerful algorithms to ensure the best noise-free conversation, giving a constant vocal level no matter the distance from your mic. The Nahimic audio engine dynamically clear the sound and remove interference noise and lower the voice variation. Result is a better comprehension and less fatigue.
●Static Noise Suppression
●Echo Cancellation
●Lateral Sound Cancellation
●Voice Stabilizer

●Sound Tracker
The Sound Tracker is a visual indicator that points out the directions from which predominant sounds are coming. Each sound is properly positioned in 360° on a radar for a full immersion during the game.

●Works on any devices!
Enjoy the vibrant and high-quality Surround Sound on all your favorite audio devices: Jack, USB, Bluetooth, HDMI, S/PDIF. Nahimic is compatible with all of your favorite audio tools and ensures the best sound with any of them. Nahimic measure and improve to optimize our technology and offer you the best experience.

In addition to the built-in RGB illumination, it also features onboard RGB headers and an addressable RGB header that allow motherboard to be connected to compatible LED devices such as strip, CPU fans, coolers, chassis and so on. Users may also synchronize RGB LED devices across the Polychrome RGB Sync-certified accessories to create their own unique lighting effects.

• 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)
  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
  
  

  *Not compatible with AMD Athlon™ Processors.
• Chipset
  - AMD B550
• Memory
  - Dual Channel DDR4 Memory Technology
  - 2 x DDR4 DIMM Slots
  - AMD Ryzen series CPUs (Vermeer) 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 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 (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 3600+(OC) / 3466(OC) / 3200(OC) / 2933 / 2667 / 2400 / 2133 non-ECC, un-buffered memory*
  - Max. capacity of system memory: 64GB**
  - 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, +1.8VSB, 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.
  
  ***Picasso supports HDCP 2.2 with HDMI 2.0 Port
• Audio
  - 7.1 CH HD Audio (Realtek ALC887/897 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 (Vermeer and Matisse)
  - 1 x PCI Express 4.0 x16 Slot (PCIE1: x16 mode)*
  AMD Ryzen series APUs (Cezanne and Renoir)
  - 1 x PCI Express 3.0 x16 Slot (PCIE1: x16 mode)**
  AMD Ryzen series APUs (Picasso)
  - 1 x PCI Express 3.0 x16 Slot (PCIE1: x8 mode)**
  
  - 1 x Vertical M.2 Socket (Key E) with the bundled WiFi-802.11ac PCIe WiFi 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 Vermeer, Matisse) or Gen3x4 (32 Gb/s) (with Cezanne, Renoir and Picasso)**
  
  

  *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 / 11 64-bit
• Certifications
  - FCC, CE
  - ErP/EuP ready (ErP/EuP ready power supply is required)