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ASRock B550M-ITX/ac

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ASRock B550M-ITX/ac
Wi-Fino backlight
Towards:home / office, compact PCs
Form Factor:mini-ITX
Socket:AM4
Chipset:AMD B550
BIOS:Ami
RAM slots:DDR4 2 sl
RAM form factor:DIMM
RAM clock:4733 MHz
Sound (channels):7.1
Connectors:HDMI, M.2
Additional connectors:DisplayPort
Power connector:24-pin
Processor power:8-pin

A well-equipped and compact 2020 mini-ITX motherboard based on the mid-range AMD B550 chipset. Equipped with an AMD AM4 processor socket, it is positioned as an affordable mid-range model. Designed for the assembly of universal home, office and multifunctional HTPC systems. Due to its compact dimensions (170x170 mm) it can be installed in SFF, mini-ITX and microATX cases. It features support for the latest versions of system / peripheral interfaces and rich communication capabilities that are provided by the Realtek GbE LAN adapter and the built-in dual-band Intel Wi-Fi 5 (802.11n / ac) module with Bluetooth 4.2 (High speed class II) support.

ASRock B550M-ITX/ac motherboard is guaranteed to be compatible with Ryzen 3000 (Matisse/Matisse Refresh, 7nm) and Ryzen 4000G (Renoir, 7nm) APUs. Equipped with a digital 8-phase Digital VRM power subsystem with a developed aluminium radiator. Two slots for installing DDR4 memory modules provide support for a total volume of up to 64 GB, which will be enough for any household and most professional tasks, as well as comfortable gaming. Thanks to the support of overclocking functions, it can be used for moderate CPU and RAM overclocking (without a significant increase in supply voltages).

All specifications
Specifications B550M-ITX/ac
Main
Featuresfor home/office
SocketAM4
Form factormini-ITX
Power phases8
Size (HxW)170x170 mm
Chipset
ChipsetAMD B550
BIOSAmi
UEFI BIOS
RAM
DDR42 slot(s)
Memory moduleDIMM
Operation mode2 channel
Max. clock frequency4733 MHz
Max. memory64 GB
XMP
Drive interface
SATA 3 (6Gbps)4
M.2 connector1
M.21xSATA/PCIe 4x
Integrated RAID controller / RAID 0, RAID 1 and RAID 10 /
Expansion slots
PCIe 16x slots1 pcs
PCIe support4.0
Steel PCIe connectors
Internal connections
USB-A 2.01 pcs
USB-A 5Gbps1 pcs
Video outputs
HDMI output
HDMI versionv2.1
DisplayPort
DisplayPort versionv.1.4
Integrated audio
AudiochipRealtek ALC887
Sound (channels)7.1
Network interfaces
Wi-FiWi-Fi 5 (802.11aс)
BluetoothBluetooth v4.2
LAN (RJ-45)1 Gbps
LAN ports1
LAN controllerRealtek RTL8111H
External connections
USB-A 2.02 pcs
USB-A 5Gbps3 pcs
USB-C 5Gbps1 pcs
PS/21
Power connectors
Main power socket24-pin
CPU power8-pin
Fan power connectors3
Official Websiteasrock.com
Added to E-CatalogMay 2020
The information in the model description is for reference purposes.
Always clarify the specifications and configuration of the product with the online store manager before purchasing.
Catalog ASRock 2026 - new arrivals, bestsellers, and the most relevant models ASRock.
How to choose a motherboard?Motherboard is the main part of any computer. Here's how to choose the right one for work, play and entertainment

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ASRock B550M-ITX/ac ITX Motherboard for AMD Socket AM4 CPUs 90-MXBDH0-A0UAYZ

8 Power Phase Design Featuring sturdy components and completely smooth power delivery to the CPU. Plus, it offers unmatched... moreoverclocking capabilities and enhanced performance with the lowest temperature for advanced gamers as well. Premium 50A Power Choke Compared to traditional chokes, ASRock’s premium 50A power chokes effectively make the saturation current up to three times better, thus providing enhanced and improved Vcore voltage to the motherboard. RULE YOUR OWN LIGHTING WAY - POLYCHROME RGB This motherboard 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. *The addressable RGB LED header supports WS2812B addressable RGB LED strip (5V/Data/GND), with a maximum power rating of 3A (5V), a max of 80 LEDs and length within 2 meters. *The RGB LED header supports standard 5050 RGB LED strip (12V/G/R/B), with a maximum power rating of 3A (12V) and length within 2 meters. 2T2R 802.11ac WiFi Dual Band (2.4/5 GHz) No one has time for weak WiFi signals and sluggish internet! That's why this motherboard comes with an exclusive 2T2R 802.11ac WiFi (2.4G / 5G WiFi) module that supports up to 867Mbps wireless networks and Bluetooth v4.2. Experience up to 289% speed boost compared to your old WiFi! Hyper M.2 (PCIe Gen4 x4) Supports the next generation PCI Express 4.0 M.2 SSDs, it is capable of perform twice the speed compared to previous 3rd generation, giving a lightning fast data transferring experience. M.2 Armors Good M.2 SSD protection is important for longevity and stability. ASRock provides a completed M.2 armor solution that makes SSDs to run in a certain low temperature. Reinforced Steel Slot [PCIe 4.0 Version] The reinforced steel slot comes with the next generation PCI Express 4.0 standard. The various benefits include: Extra anchor points Stronger latch Ensure signal stability Make sure heavy graphics cards to be well-installed. Dual USB 3.2 Gen1 (Type-A + Type-C) This motherboard has a pair of onboard Type-A and Type-C USB 3.2 Gen1 ports built on the rear i/o for supporting next generation USB 3.2 Gen1 devices and to deliver up to 5 Gbps data transfer rates. Dual Graphics Outputs Complete with two types of most used connectors! Packed with a HDMI + DisplayPort combo, you have more graphics output options now. HDMI 4k @60Hz Supports the most recent HDMI 4K 60Hz graphics output specification. With the larger bandwidth and increased frame rate, the motion on your screen becomes more fluid and less blurry. Super Alloy Motherboard Premium 60A Power Choke Compared to traditional chokes, ASRock’s premium 60A power chokes effectively make the saturation current up to three times better, thus providing enhanced and
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£114.99
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Asrock B550M-ITX/ac AMD B550 Socket AM4 mini ITX

Asrock B550M-ITX/ac AMD B550 Socket AM4 mini ITX 8 Power Phase DesignFeaturing sturdy components and completely smooth power... moredelivery to the CPU. Plus. it offers unmatched overclocking capabilities and enhanced performance with the lowest temperature for advanced gamers as well.Premium 60A Power ChokeCompared to traditional chokes. ASRock’s premium 60A power chokes effectively make the saturation current up to three times better. thus providing enhanced and improved Vcore voltage to the motherboard.RULE YOUR OWN LIGHTING WAY - POLYCHROME RGBThis motherboard 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.Dual Band 802.11ac WiFiNo one has time for weak WiFi signals and sluggish internet! That's why this motherboard comes with a 802.11ac WiFi (2.4G / 5G WiFi) module which supports wireless networks and Bluetooth v4.2.Hyper M.2 (PCIe Gen4 x4)Supports the next generation PCI Express 4.0 M.2 SSDs. it is capable of perform twice the speed compared to previous 3rd generation. giving a lightning fast data transferring experience.M.2 ArmorsGood M.2 SSD protection is important for longevity and stability. ASRock provides a completed M.2 armor solution that makes SSDs to run in a certain low temperature.Dual USB 3.2 Gen1 (Type-A + Type-C)This motherboard has a pair of onboard Type-A and Type-C USB 3.2 Gen1 ports built on the rear i/o for supporting next generation USB 3.2 Gen1 devices and to deliver up to 5 Gbps data transfer rates.Dual Graphics OutputsComplete with two types of most used connectors! Packed with a HDMI + DisplayPort combo. you have more graphics output options now.HDMI 4k @60HzSupports the most recent HDMI 4K 60Hz graphics output specification. With the larger bandwidth and increased frame rate. the motion on your screen becomes more fluid and less blurry.Full Spike ProtectionSome sensitive digital components on the motherboard are vulnerable to power surges. the excessive current may cause your system to malfunction immediately. ASRock Full Spike Protection includes various technologies to prevent your motherboard’s components from being damaged by these unexpected voltage spikes.Live Update & APP ShopASRock Live Update & APP Shop is designed for your convenience. We provide various apps and support software for users to download. You can also easily optimize your system and keep your motherboard up to date with ASRock Live Update & APP Shop.
Pcnova.co.uk
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£117.73
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Asrock B550M-ITX/ac AMD B550 Socket AM4 mini ITX

8 Power Phase DesignFeaturing sturdy components and completely smooth power delivery to the CPU. Plus. it offers unmatched ov... moreerclocking capabilities and enhanced performance with the lowest temperature for advanced gamers as well.Premium 60A Power ChokeCompared to traditional chokes. ASRock’s premium 60A power chokes effectively make the saturation current up to three times better. thus providing enhanced and improved Vcore voltage to the motherboard.RULE YOUR OWN LIGHTING WAY - POLYCHROME RGBThis motherboard 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.Dual Band 802.11ac WiFiNo one has time for weak WiFi signals and sluggish internet! That's why this motherboard comes with a 802.11ac WiFi (2.4G / 5G WiFi) module which supports wireless networks and Bluetooth v4.2.Hyper M.2 (PCIe Gen4 x4)Supports the next generation PCI Express 4.0 M.2 SSDs. it is capable of perform twice the speed compared to previous 3rd generation. giving a lightning fast data transferring experience.M.2 ArmorsGood M.2 SSD protection is important for longevity and stability. ASRock provides a completed M.2 armor solution that makes SSDs to run in a certain low temperature.Dual USB 3.2 Gen1 (Type-A + Type-C)This motherboard has a pair of onboard Type-A and Type-C USB 3.2 Gen1 ports built on the rear i/o for supporting next generation USB 3.2 Gen1 devices and to deliver up to 5 Gbps data transfer rates.Dual Graphics OutputsComplete with two types of most used connectors! Packed with a HDMI + DisplayPort combo. you have more graphics output options now.HDMI 4k @60HzSupports the most recent HDMI 4K 60Hz graphics output specification. With the larger bandwidth and increased frame rate. the motion on your screen becomes more fluid and less blurry.Full Spike ProtectionSome sensitive digital components on the motherboard are vulnerable to power surges. the excessive current may cause your system to malfunction immediately. ASRock Full Spike Protection includes various technologies to prevent your motherboard’s components from being damaged by these unexpected voltage spikes.Live Update & APP ShopASRock Live Update & APP Shop is designed for your convenience. We provide various apps and support software for users to download. You can also easily optimize your system and keep your motherboard up to date with ASRock Live Update & APP Shop. Asrock B550M-ITX/ac AMD B550 Socket AM4 mini ITX
Gamingkit.co.uk
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£117.73
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Asrock B550M-ITX/ac AMD B550 Socket AM4 mini ITX

  - Supports 3rd Gen AMD AM4 Ryzen™ / Future AMD Ryzen™ Processors - Supports DDR4 4733+ (OC)... more- 1 PCIe 4.0 x16 - Graphics Output: DisplayPort HDMI - 7.1 CH HD Audio (Realtek ALC887 Audio Codec) - 4 SATA3 1 Hyper M.2 (PCIe Gen4 x4 & SATA3) - 6 USB 3.1 Gen1 (2 Front 3 Rear Type-A 1 Rear Type-C) - Realtek Gigabit LAN - Intel® 802.11ac WiFi + BT 4.2 8 Power Phase Design 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. Premium 60A Power Choke Compared to traditional chokes ASRock’s premium 60A power chokes effectively make the saturation current up to three times better thus providing enhanced and improved Vcore voltage to the motherboard.   Rule Your Own Lighting Way - Polychrome RGB This motherboard 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. Dual Band 802.11ac WiFi No one has time for weak WiFi signals and sluggish internet! That's why this motherboard comes with a 802.11ac WiFi (2.4G / 5G WiFi) module which supports wireless networks and Bluetooth v4.2. Hyper M.2 (PCIe Gen4 x4) Supports the next generation PCI Express 4.0 M.2 SSDs it is capable of perform twice the speed compared to previous 3rd generation giving a lightning fast data transferring experience. M.2 Armors Good M.2 SSD protection is important for longevity and stability. ASRock provides a completed M.2 armor solution that makes SSDs to run in a certain low temperature. Dual USB 3.2 Gen1 (Type-A + Type-C) This motherboard has a pair of onboard Type-A and Type-C USB 3.2 Gen1 ports built on the rear i/o for supporting next generation USB 3.2 Gen1 devices and to deliver up to 5 Gbps data transfer rates. Dual Graphics Outputs Complete with two types of most used connectors! Packed with a HDMI + DisplayPort combo you have more graphics output options now. HDMI 4k @ 60Hz Supports the most recent HDMI 4K 60Hz graphics output specification. With the larger bandwidth and increased frame rate the motion on your screen becomes more fluid and less blurry. Super Alloy Motherboard   Premium 60A Power Choke Compared to traditional chokes ASRock’s premium 60A power chokes effectively make the saturation current up to three times better thus providing enhanced and
Quzo.co.uk
Delivery: to United Kingdom
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£122.55
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Asrock B550M-ITX/AC Amd Socket Am4 Mini Itx Hdmi/Displayport Usb 3.2 C M.2 B550M-ITX/AC

Supports 3rd Gen AMD AM4 Ryzen / Future AMD Ryzen Processors Supports DDR4 4733+ (OC) 1 PCIe 4.0 x16 Graphics Output: Display... morePort, HDMI 7.1 CH HD...
OnBuy.com
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£179.98
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ASRock B550MITXAC Supports 3rd Gen AMD AM4 Ryzen Future AMD Ryzen Processo

eBay.co.uk
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£208.72
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Video reviews

An excellent foundation for an affordable SFF (Small Form Factor) AM4 build

If you’re thinking about putting together a modern compact PC without overspending, the AM4 platform still looks like an appealing option. Even though official support has ended, the broad availability of parts lets you build a powerful system with a Ryzen 7 5800X, fast Gen4 SSDs, and a large amount of RAM, all inside a stylish, budget-friendly case like the Cooler Master MasterBox NR200P. As the motherboard, a well-balanced choice in price and features could be the ASRock B550M-ITX/ac.

Support for Gen4 SSD and DDR4-4733 RAM

The ASRock B550M-ITX/ac is a compact mid-range board that doesn’t belong to the brand’s signature lineups and sits between budget office models and pricier gaming solutions. Based on the B550 chipset, it supports one high-speed SSD with a PCIe 4.0 interface, one graphics card, and up to 64 GB of DDR4 memory at up to 4733 MHz. There’s also a built-in wireless module, and among the ports you’ll find USB-C, albeit limited to 5 Gbps.

Good, but not perfect

Despite its relatively low price, the ASRock B550M-ITX/ac isn’t without drawbacks. Even with 8 power phases, the implementation noticeably trails more expensive mini-ITX boards from the Phantom Gaming or Steel Legend series. The modest VRM heatsink also isn’t designed for serious overclocking, especially with high-TDP Ryzen chips and aggressive PBO in the constrained cooling of a compact case. In addition, user reviews frequently mention the mediocre performance of the built-in Wi‑Fi module.

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