 |  | |
| User rating |
 ASRock Z390 Pro4 |  ASRock Z390M Pro4 | |
|---|---|---|
| Motherboard type | ATX | Micro-ATX |
| Processor socket | LGA 1151 | LGA 1151 |
| ASRock Z390 Pro4 | ASRock Z390M Pro4 | |
|---|---|---|
| Supported memory bus clock |
|
|
| RAM technology | DDR4 | DDR4 |
| Memory slots type | DIMM | DIMM |
| Maximum RAM size | 128 GB | 64 GB |
| Number of memory slots | 4 | 4 |
| Memory channels | Dual | Dual |
| ECC | yes | yes |
| Non-ECC | yes | yes |
| Extreme Memory Profile (XMP) | yes | yes |
| ASRock Z390 Pro4 | ASRock Z390M Pro4 | |
|---|---|---|
| Audio codec | Realtek ALC892 | Realtek ALC892 |
| Audio output channels | 7.1 | 7.1 |
| ASRock Z390 Pro4 | ASRock Z390M Pro4 | |
|---|---|---|
| DirectX version | 12.0 | 12.0 |
| Maximum resolution |
|
|
| Number of displays supported | 3 | 3 |
| ASRock Z390 Pro4 | ASRock Z390M Pro4 | |
|---|---|---|
| Compatible processor series |
|
|
| Maximum number of processors | 1 | 1 |
| ASRock Z390 Pro4 | ASRock Z390M Pro4 | |
|---|---|---|
| BIOS type | UEFI AMI | UEFI AMI |
| BIOS features |
|
|
| BIOS memory size | 128.0 mB | 128.0 mB |
| System Management BIOS (SMBIOS) version | 2.7 | 2.7 |
| ACPI version | 6.0 | 6.0 |
| ASRock Z390 Pro4 | ASRock Z390M Pro4 | |
|---|---|---|
| Number of COM connectors | 1 | 1 |
| CPU fan connector | yes | yes |
| ATX Power connector (24-pin) | Y | Y |
| TPM connector | yes | yes |
| Number of SATA III connectors | 6 | 6 |
| ASRock Z390 Pro4 | ASRock Z390M Pro4 | |
|---|---|---|
| HDMI ports quantity | 1 | 1 |
| Ethernet LAN (RJ-45) ports | 1 | 1 |
| PS/2 ports quantity | 1 | 1 |
| USB 3.2 Gen 2 (3.1 Gen 2) Type-C ports quantity | 1 | 1 |
| USB 3.2 Gen 2 (3.1 Gen 2) Type-A ports quantity | 1 | 1 |
| USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity | 2 | 4 |
| VGA (D-Sub) ports quantity | 1 | 1 |
| DVI-D ports quantity | 1 | 1 |
| ASRock Z390 Pro4 | ASRock Z390M Pro4 | |
|---|---|---|
| Ethernet LAN (Network) | yes | yes |
| LAN controller | Intel I219V | Intel I219V |
| Ethernet interface type | Gigabit Ethernet | Gigabit Ethernet |
| ASRock Z390 Pro4 | ASRock Z390M Pro4 | |
|---|---|---|
| Width | 12.01 in | 9.61 in |
| Depth | 8.82 in | 9.61 in |
| Pros | ||
|---|---|---|
| Cons |
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