# Asrock B450 PRO4 R2.0 AM4 AMD Promontory B450 SATA 6Gbps ATX AMD Motherboard

- Category: Motherboard
- Brand: ASRock
- Model: 90-MXBEE0-A0UAYZ
- Part number: 90-MXBEE0-A0UAYZ
- Price (US): $191.94
- Price last checked: 2026-08-06
- Rating: 3.4/5 from 9 Amazon reviews
- Warranty: 3 years
- Product page: https://buildmypc.net/component-details/motherboard/asrock-90-mxbee0-a0uayz/

## Specifications

| Spec | Value |
| --- | --- |
| Brand | ASRock |
| Model | 90-MXBEE0-A0UAYZ |
| Socket Type | AM4 |
| Chipset | AMD B450 |
| Form Factor | ATX |
| Memory Type | 4 x DDR4 |
| Max Memory Support | 128 GB |

## Key Features

- Supports AMD AM4 Socket Ryzen 2000, 3000, 4000 G-Series, 5000 and 5000 G-Series Desktop Processors
- Supports DDR4 3200+ (OC)
- 2 PCIe 3.0 x16, 4 PCIe 2.0 x1
- AMD Quad CrossFireX
- Graphics Output: HDMI, Display Port, D-Sub

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