SKU: 44105556722

ASRock Motherboard B550M-ITX/AC AMD AM4 Ryzen B550 Max 64GB DDR4 Mini-ITX Retail

Sale price$118.79 Regular price$131.99
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Description

ASRock Motherboard B550M-ITX/AC AMD AM4 Ryzen B550 Max 64GB DDR4 Mini-ITX RetailMPN B550M ITX AC 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 and APP Shop CPU Supports 3rd Gen AMD AM4 RyzenTM future AMD RyzenTM Processorsnote1 Digi Power design 8 Power Phase design Note1: Not compatible with

MPN
B550M-ITX/AC
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 and APP Shop
CPU
- Supports 3rd Gen AMD AM4 RyzenTM / future AMD RyzenTM Processorsnote1
- Digi Power design
- 8 Power Phase design

Note1: Not compatible with AMD RyzenTM 5 3400G and RyzenTM 3 3200G.
Chipset
- AMD B550
Memory
- Dual Channel DDR4 Memory Technology
- 2 x 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 and 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 and non-ECC, un-buffered memory
- Max. capacity of system memory: 64GBnote2
- Supports Extreme Memory Profile (XMP) memory modules
- 15Mu Gold Contact in DIMM Slots
SR: Single rank DIMM, 1Rx4 or 1Rx8 on DIMM module label
DR: Dual rank DIMM, 2Rx4 or 2Rx8 on DIMM module label

Note2: 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 RadeonTM Vega Series Graphics in Ryzen Series APUnote1
- DirectX 12, Pixel Shader 5.0
- Shared memory default 2GB. Max Shared memory supports up to 16GB.note2
- 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) at 60Hz
- Supports DisplayPort 1.4 Input with max. resolution up to 5K (5120x2880) at 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

Note1: Actual support may vary by CPU
Note2: 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)note1
AMD Ryzen series APUs
- 1 x PCI Express 3.0 x16 Slot (PCIE1: x16 mode)note1
- 1 x Vertical M.2 Socket (Key E) with the bundled WiFi-802.11ac module (on the rear I/O)

Note1: 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)note2

Note1: Supports NVMe SSD as boot disks
Supports ASRock U.2 Kit
Connector
- 1 x RGB LED Headernote1
- 1 x Addressable LED Headernote2
- 1 x CPU Fan Connector (4-pin)note3
- 2 x Chassis/Water Pump Fan Connectors (4-pin) (Smart Fan Speed Control)note4
- 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)

Note1: Supports in total up to 12V/3A, 36W LED Strip
Note2: Supports in total up to 5V/3A, 15W LED Strip
Note3: The CPU Fan Connector supports the CPU fan of maximum 1A (12W) fan power.
Note4: 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

Note: These utilities can be downloaded from ASRock Live Update and 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)
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 44105556722

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4.3 ★★★★★
Based on 9 reviews
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Product Reviews
D
Verified Purchase
Dogmom120
Lake Worth, US
★★★★★ 5
Hyena Proof
Color: Acorn - Large, Size: Large
I have an American Bulldog that would chew a brick if he didn’t have an alternative lying around. They won’t last forever (nothing does) but we’ve had two of these over the course of a year and for him that is nothing short of a miracle. And that is daily chewing like it’s his job. I highly recommend the Acornucopia for aggressive chewers with jaws like hyenas…so it’s probably great for your dog too.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 7, 2026
B
Verified Purchase
Becky L
San Leandro, US
★★★★★ 5
Great Product!
Size: 5.75 inch (Pack of 1)
My dog is a chewer! She can chew through most chew toys in a day. This has been a lifesaver! She chews on it but has not been able to get any pieces off of it. It is Durable and she loves it! This is a great item. I intend to buy more like this. It is a great product!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 3, 2026
A
Verified Purchase
Alianna
Waukegan, US
★★★★★ 5
Amazing toy for large dog breeds!
Size: 9.5 inch (Pack of 1), Size: 9.5 inch (Pack of 1)
My puppy Rottweiler loves this toy! Withstands her heavy chewing and really seems to soothe her! It’s very loud against the floor. She struggled a bit at first with picking it up but now it’s no problem. Highly recommend for big dogs
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 14, 2026
K
Verified Purchase
K.D.
Dallas, US
★★★★★ 5
My puppy's favorite stick, high quality
Size: 5.75 inch (Pack of 1)
Perfect quality chew toy for my dachshund puppy. She will spend several minutes everyday chewing on this. It is the perfect size for her small mouth and it doesn't show signs of wear like most sticks do.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 31, 2026
S
Verified Purchase
Stephanie
Los Angeles, US
★★★★★ 4
Durable
Size: 5.75 inch (Pack of 1), Size: 5.75 inch (Pack of 1)
Great buy would highly suggest for dogs that love to chew. I bout a large one for our 5 year old Husky and a medium one for our 11 week old puppy. Both are very intrigued by them and the puppy loves playing fetch with it. The only complaint I have is the size difference between the large and the small. I know measurements were given but the medium looks more like a very small stick. If you have a larger go with the Large size. Medium would really only work for smaller size dogs and pups
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 1, 2024

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