# Motherboard Asrock B550M Phantom Gaming 4 AMD B550 Socket AM4 micro ATX

**URL:** https://aio.lv/en/product--asrock-90-mxbe90-a0uayz--3633028
**Data updated:** 2026-02-17 11:44 (EET)
**Category:** Motherboards
**Manufacturer:** ASROCK
**Manufacturer code:** 90-MXBE90-A0UAYZ
**EAN:** 4710483932755
**Warranty:** 3 Years
**Availability:** Available for order
**Price:** 86.99 €
**Prices and availability valid until:** 2026-07-21 23:59
**Price without VAT (21%):** 71.89 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--asrock-90-mxbe90-a0uayz--3633028

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | Friday | free |
| Pickup points | 01.07.2026 | 1.89 EUR |
| Courier delivery to door | 01.07.2026 | 4.99 EUR |

## Summary description

The Asrock B550M Phantom Gaming 4 motherboard supports AMD Ryzen 3000 Series processors with Socket AM4. It features DDR4-SDRAM memory support up to 128 GB, DIMM slots, and SATA III interfaces for HDD and SSD storage. With a maximum resolution of 5120 x 2880 pixels and Gigabit Ethernet via Realtek RTL8111H, this micro ATX board is ideal for gaming and high-performance tasks.

## Long description

Phantom Gaming motherboard series is developed by gamers for gamers, offering gaming-focused features and reliable performance. It includes an 8 power phase design and premium 50A power chokes to ensure stable and efficient CPU power delivery. The board supports dual M.2 sockets (Type 2280) with one Hyper M.2 socket supporting PCIe Gen4 x4 and an additional M.2 supporting PCIe Gen3 x2 or SATA3, plus dual graphics outputs (HDMI and DisplayPort) with HDMI 4K@60Hz support. Additional design elements such as 2oz copper PCB layers, Sapphire Black PCB, and high-density glass fabric reduce temperatures, improve signal stability and protect against humidity-induced shorts. Built-in protections guard sensitive components from power spikes, and ASRock Live Update & APP Shop provide firmware and software updates and utilities. Polychrome RGB headers allow connection and synchronization of compatible RGB and addressable RGB devices.
Advantages
The 8 power phase design combined with premium 50A power chokes delivers smooth, reliable Vcore power and reduced operating temperatures for advanced gaming and overclocking. Dual M.2 support with one PCIe Gen4 x4 Hyper M.2 socket enables high-capacity, high-speed NVMe SSD configurations. 2oz copper PCB and high-density glass fabric construction improve thermal performance, signal integrity and long-term durability. Dual graphics outputs (HDMI + DisplayPort) increase display connectivity options and HDMI 4K@60Hz ensures smooth high-resolution output. Polychrome RGB and addressable RGB headers provide flexible lighting customization and synchronization. Full spike protection helps prevent damage from unexpected voltage surges, while ASRock Live Update & APP Shop simplify driver, BIOS and utility management.
Key specifications
Power design: 8 power phase with premium 50A power chokes
M.2: Dual M.2 slots, supports Type 2280; Hyper M.2 socket PCIe Gen4 x4; second M.2 PCIe Gen3 x2 / SATA3
PCB: 2oz copper inner layers; Sapphire Black PCB; High-density glass fabric PCB
Graphics outputs: HDMI + DisplayPort
HDMI: Supports 4K @ 60Hz
RGB headers: Onboard RGB and addressable RGB header (addressable: WS2812B, 5V, max 3A, up to 80 LEDs, max length 2 m; RGB: 5050 12V, max 3A, max length 2 m)
Storage tech: AMD StoreMI support
Protection: Full spike protection for sensitive onboard components
Software: ASRock Live Update & APP Shop for updates and utilities
How to use
Install the motherboard into a compatible PC chassis and connect the CPU, memory modules and power supply according to the motherboard manual. Mount NVMe M.2 SSDs into the supported Type 2280 M.2 sockets: install high-performance PCIe Gen4 x4 drives into the Hyper M.2 socket and PCIe Gen3 x2 or SATA3 drives into the other M.2 slot as required. Connect displays using HDMI or DisplayPort outputs; use HDMI for 4K@60Hz output when supported by the display and graphics configuration. Attach compatible RGB strips or addressable LEDs to the corresponding headers, respecting voltage, current and length limits. Use ASRock Live Update & APP Shop to download chipset drivers, BIOS updates and ASRock utilities, and enable AMD StoreMI in software to combine SSD and HDD storage if desired.
Recommendations
Ensure components (CPU, memory, GPU, cooling) are compatible with the motherboard and follow the manual for proper installation. For stable overclocking, use adequate cooling and a quality power supply. Observe the RGB header specifications (voltage/current and maximum LED count/length) to avoid damage. Keep BIOS and drivers updated via ASRock Live Update & APP Shop and consider enabling AMD StoreMI to improve storage responsiveness when combining SSD and HDD.

## Specifications

### Features

| Feature | Value |
|---|---|
| Motherboard form factor | Micro ATX |
| Motherboard chipset | AMD B550 |
| Component for | PC |
| Audio output channels | 7.1 |
| Overclocking features | FCC, CE
ErP/EuP |
| PC health monitoring | Voltage, Temperature, FAN |
| Windows operating systems supported | Windows 10 x64 |
| Motherboard chipset family | AMD |

### Processor

| Feature | Value |
|---|---|
| Processor manufacturer | AMD |
| Maximum number of SMP processors | 1 |
| Processor socket | Socket AM4 |

### Memory

| Feature | Value |
|---|---|
| Number of memory slots | 4 |
| Maximum internal memory | 128 GB |
| Supported memory types | DDR4-SDRAM |
| Supported memory clock speeds | 4466, 2133, 2400, 2667, 2933, 3200, 3466, 3600, 3733, 3800, 3866, 4000, 4133, 4200, 4266, 4333, 4400, 4533 |
| Memory channels | Dual-channel |
| Unbuffered memory | Yes |
| Memory slots type | DIMM |
| ECC сompatibility | ECC & non-ECC |

### Expansion slots

| Feature | Value |
|---|---|
| PCI Express x1 (Gen 3.x) slots | 1 |
| PCI Express x16 (Gen 3.x) slots | 3 |
| Number of M.2 (M) slots | 1 |

### Graphics

| Feature | Value |
|---|---|
| Maximum resolution | 5120 x 2880 |
| DirectX version | 12.0 |
| HDCP | Yes |

### Network

| Feature | Value |
|---|---|
| Ethernet LAN | Yes |
| Wake-on-LAN ready | Yes |
| LAN controller | Realtek RTL8111H |
| Wi-Fi | No |
| Ethernet interface type | Gigabit Ethernet |

### Internal I/O

| Feature | Value |
|---|---|
| USB 2.0 connectors | 2 |
| CPU fan connector | Yes |
| ATX Power connector (24-pin) | Yes |
| Number of chassis fan connectors | 3 |
| Front panel audio connector | Yes |
| TPM connector | Yes |
| USB 3.2 Gen 1 (3.1 Gen 1) connectors | 2 |
| Number of SATA III connectors | 4 |
| 12V power connector | Yes |
| RGB LED pin header | Yes |

### Rear panel I/O ports

| Feature | Value |
|---|---|
| PS/2 ports quantity | 1 |
| USB 2.0 ports quantity | 2 |
| Ethernet LAN (RJ-45) ports | 1 |
| HDMI ports quantity | 1 |
| HDMI version | 2.1 |
| DisplayPorts quantity | 1 |
| USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity | 4 |

### Storage controllers

| Feature | Value |
|---|---|
| Supported storage drive types | HDD & SSD |
| Supported storage drive interfaces | SATA III |

### BIOS

| Feature | Value |
|---|---|
| BIOS memory size | 256 Mbit |
| BIOS type | UEFI AMI |
| ACPI version | 5.1 |
| System Management BIOS (SMBIOS) version | 2.3 |

### Weight & dimensions

| Feature | Value |
|---|---|
| Width | 244 mm |
| Depth | 244 mm |

### Other features

| Feature | Value |
|---|---|
| Weight | 0.465 kg |
| Height | 70 mm |
| DisplayPort version | 1.4 |
| Audio chip | Realtek ALC887 / Realtek ALC897 |

### Packaging content

| Feature | Value |
|---|---|
| Cables included | SATA |
| Drivers included | Yes |

### Logistics data

| Feature | Value |
|---|---|
| Harmonized System (HS) code | 84733020 |

## FAQ

### How much does the Motherboard Asrock B550M Phantom Gaming 4, 90-MXBE90-A0UAYZ cost, and is it available for purchase?

The price is 86.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 387 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on Friday at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Cash payment, Bank transfer, Bank cards on-line, Apple Pay, Google Pay, Installment. All transactions are 100% secure and encrypted.

### Can Motherboard Asrock B550M Phantom Gaming 4, 90-MXBE90-A0UAYZ be purchased with a lease?

Yes, the purchase is available both on credit and with an interest-free installment plan. Learn more about installments and credit options: https://aio.lv/en/payment#b3

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All ASROCK products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized ASROCK service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

### How can I tell if this product suits my needs?

When making a choice, we recommend paying attention to the key features: motherboard form factor, motherboard chipset, component for, processor socket, number of memory slots, maximum internal memory, pci express x16 (gen 3.x) slots, pci express x1 (gen 3.x) slots, weight, supported memory types, compatibility with your devices or usage conditions, material quality, functionality, and warranty terms. These characteristics will help you determine how well the model meets your needs.

### Where can I download the instructions for Motherboard Asrock B550M Phantom Gaming 4, 90-MXBE90-A0UAYZ?

You can download the instructions in PDF format from the “Instructions” section on the product description page. The file contains complete information about installation, setup, and usage.

## Image

https://aio.lv/img/cache/product/3633028/65417877_large.webp