# ASRock B450M PRO4 AM4 AMD Promontory B450 SATA 6Gb/s USB 3.1 HDMI Micro ATX AMD Motherboard

- Category: Motherboard
- Brand: ASRock
- Model: B450M PRO4
- Part number: 90-MXB8F0-A0UAYZ
- Price (US): $109.99
- Price last checked: 2026-08-07
- Rating: 4.6/5 from 4949 Amazon reviews
- Warranty: 1 years
- Product page: https://buildmypc.net/component-details/motherboard/asrock-b450m-pro4-90-mxb8f0-a0uayz/

## Specifications

| Spec | Value |
| --- | --- |
| Brand | ASRock |
| Model | B450M PRO4 |
| Socket Type | AM4 |
| Chipset | AMD B450 |
| Form Factor | Micro ATX |
| Memory Type | 4 x DDR4 |
| Max Memory Support | 64 GB |

## Key Features

- Socket AM4 Digi Power design 9 Power Phase design Supports 105W Water Cooling (Pinnacle Ridge) Supports 95W Water Cooling (Summit Ridge) Supports 65W Water Cooling (Raven Ridge)
- Country of origin : China
- Memory 4x DDR4-3200+(OC)/2933/2667/2400/2133 DIMM Slots Dual Channel ECC Non-ECC Unbuffered Max Capacity of 64GB (AMD Ryzen series CPUs (Pinnacle Ridge))
- Slots 2x PCI-Express 3 0 x16 Slots (one runs at x8) 2x PCI-Express 2 0 x16 Slots (two run at x4) 1x PCI-Express 2 0 x1 Slot

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