Asrock B550M Phantom Gaming 4 mATX Motherboard | AM4 | 4x DDR4 Slots
KEY FEATURES
- Premium 50A Power Choke
- Sapphire Black PCB
- High Density Glass Fabric PCB
- 2oz Copper PCB
- ASRock Hyper M.2 (PCIe Gen4x4)
- ASRock Full Spike Protection (for all USB, Audio, LAN Ports)
- ASRock Live Update & APP Shop
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Frequently Asked Questions
What processors are compatible with the Asrock B550M Phantom Gaming 4?
How many memory slots does this motherboard have?
Does it support RGB lighting?
Asrock B550M Phantom Gaming 4 mATX Motherboard | AM4 | 4x DDR4 Slots
Description
The ASRock B550M Phantom Gaming 4 is a micro ATX motherboard built around AMD's B550 chipset for AM4 socket processors. This board accommodates AMD Ryzen 3000 series CPUs and newer generations, making it a solid mainstream choice for compact gaming builds or everyday systems where space matters. The micro ATX form factor strikes a balance between features and footprint, fitting into smaller cases while still offering room for expansion.
Memory support extends to 128GB across four DDR4 DIMM slots, with speeds reaching up to 4533MHz when overclocked. The board includes both ECC and non-ECC memory compatibility, useful for users who need error-correcting memory for workstation tasks. Connectivity covers the essentials with USB 3.2 ports, HDMI and DisplayPort outputs for integrated graphics, plus Gigabit Ethernet for reliable network access. A single PCIe x16 slot handles discrete graphics cards, while an additional PCIe x1 slot provides room for expansion cards.
Storage flexibility comes through four SATA III ports plus M.2 connectivity for NVMe SSDs. The board supports both XMP memory profiles for easy overclocking and includes an RGB LED header for users wanting to add lighting effects to their build. ASRock includes the standard package of I/O shield, user documentation, and necessary SATA cables. The compact 244x244mm dimensions make this board particularly appealing for small form factor builds that don't compromise on core functionality.
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| Processor | |
|---|---|
| Processor manufacturer | AMD |
| Processor socket | Socket AM4 |
| Compatible processor series | AMD Ryzen 3000 Series |
| Maximum number of SMP processors | 1 |
| Memory | |
|---|---|
| Supported memory types | DDR4-SDRAM |
| Number of memory slots | 4 |
| Memory slots type | DIMM |
| Memory channels | Dual-channel |
| ECC сompatibility | ECC & Non-ECC |
| Supported memory clock speeds | 2133,2400,2667,2933,3200,3466,3600,3733,3800,3866,4000,4133,4200,4266,4333,4400,4466,4533 MHz |
| Maximum internal memory | 128 GB |
| Unbuffered memory | Yes |
| Storage controllers | |
|---|---|
| Supported storage drive types | HDD & SSD |
| Supported storage drive interfaces | SATA III |
| Number of storage drives supported | 6 |
| RAID support | Yes |
| Graphics | |
|---|---|
| Maximum resolution | 5120 x 2880 pixels |
| HDCP | Yes |
| DirectX version | 12.0 |
| Internal I/O | |
|---|---|
| USB 2.0 connectors | 2 |
| USB 3.2 Gen 1 (3.1 Gen 1) connectors | 2 |
| Number of SATA III connectors | 4 |
| Front panel audio connector | Yes |
| ATX Power connector (24-pin) | Yes |
| CPU fan connector | Yes |
| Number of chassis fan connectors | 3 |
| 12V power connector | Yes |
| TPM connector | Yes |
| RGB LED pin header | Yes |
| Rear panel I/O ports | |
|---|---|
| USB 2.0 ports quantity | 2 |
| USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity | 4 |
| Ethernet LAN (RJ-45) ports | 1 |
| PS/2 ports quantity | 1 |
| HDMI ports quantity | 1 |
| HDMI version | 2.1 |
| DisplayPorts quantity | 1 |
| DisplayPort version | 1.4 |
| Network | |
|---|---|
| Ethernet LAN | Yes |
| Ethernet interface type | Gigabit Ethernet |
| LAN controller | Realtek RTL8111H |
| Wake-on-LAN ready | Yes |
| Wi-Fi | No |
| Top Wi-Fi standard | Not available |
| Features | |
|---|---|
| Component for | PC |
| Motherboard form factor | micro ATX |
| Motherboard chipset family | AMD |
| Motherboard chipset | AMD B550 |
| Audio chip | Realtek ALC887 / Realtek ALC897 |
| Audio output channels | 7.1 channels |
| PC health monitoring | Fan, Temperature, Voltage |
| Windows operating systems supported | Windows 10 x64 |
| Harmonized System (HS) code | 84733020 |
| Overclocking features | FCC, CE ErP/EuP |
| Expansion slots | |
|---|---|
| PCI Express x1 (Gen 3.x) slots | 1 |
| PCI Express x16 (Gen 4.x) slots | 1 |
| PCI Express x16 (Gen 3.x) slots | 3 |
| Number of M.2 (M) slots | 2 |
| BIOS | |
|---|---|
| BIOS type | UEFI AMI |
| BIOS memory size | 256 Mbit |
| ACPI version | 5.1 |
| System Management BIOS (SMBIOS) version | 2.3 |
| Weight & dimensions | |
|---|---|
| Width | 244 mm |
| Depth | 244 mm |
| Height | 70 mm |
| Packaging content | |
|---|---|
| Cables included | SATA |
| Drivers included | Yes |
| Other features | |
|---|---|
| Weight | 465 g |
Frequently Asked Questions
What processors are compatible with the Asrock B550M Phantom Gaming 4?
How many memory slots does this motherboard have?
Does it support RGB lighting?
What is AMD StoreMI Technology?
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