ASRock
ASROCK B450M PRO4 R2.0 Socket AM4/ AMD B450/ DDR4/ SATA3&USB3.2/ M.2/ Micro ATX Motherboard
Status: ASROCK B450M PRO4 R2.0 Socket AM4/ AMD B450/…: Unavailable on Amazon as of . SpecPicks has no in-stock listing with matching specs on file; the search below lists current offers. eBay sellers may still list this model new or used.
Bottom line: The ASROCK B450M PRO4 R2.0 Socket AM4/ AMD B450/ DDR4/ SATA3&USB3.2/ M.2/: Supports Ryzen 2000, 3000 and 5000 series CPUs on the AM4 socket; main trade-off: B450 is a previous-gen chipset with no PCIe 4.0 support.
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Currently unavailable on Amazon. Not the same product — 3 in-stock alternatives:
Similar: B450M-HDV R4.0 AMD B450 AM4 Socket Ryzen 2000… — $77.75 on Amazon as of 2026-10-21 06:16 UTC (price may vary).
Similar: ASUS B450 AMD Ryzen 2 Micro ATX Gaming… — $109.99 on Amazon as of 2026-10-21 10:16 UTC (price may vary).
Similar: MSI MPG AMD B550 Gaming Plus Socket AM4 ATX… — $135.99 on Amazon as of 2026-10-21 02:15 UTC (price may vary).
Pros & Cons
Pros
- ✓ Supports Ryzen 2000, 3000 and 5000 series CPUs on the AM4 socket
- ✓ USB 3.2 Gen2 Type-A and Type-C ports both hit 10 Gb/s
- ✓ Ultra M.2 slot runs PCIe Gen3 x4 for fast NVMe storage
- ✓ 10 power phase design with 42A chokes for steady Ryzen power delivery
Cons
- ✗ B450 is a previous-gen chipset with no PCIe 4.0 support
- ✗ Ultra M.2 caps at Gen3 x4, below what Gen4 NVMe drives can do
- ✗ 10 Gb/s speed limited to one Type-A and one Type-C port
- ✗ Micro ATX layout offers fewer expansion slots than full ATX
Manufacturer description
Mfr Part Number:B450M PRO4 R2.0 Unique Feature: ASRock USB 3.2 Gen2 - ASRock USB 3.2 Gen2 Type-A Port (10 Gb/s) - ASRock USB 3.2 Gen2 Type-C Port (10 Gb/s) ASRock Super Alloy - Premium 42A Power Choke - Sapphire Black PCB - High Density Glass Fabric PCB - 2oz Copper PCB ASRock Ultra M.2 (PCIe Gen3 x4) ASRock Full Spike Protection (for all USB, Audio, LAN Ports) ASRock Live Update & APP Shop CPU: Supports AMD AM4 Socket Ryzen 2000, 3000 and 5000 Series Desktop Processors Digi Power design 10 Power Phase design Chipset:AMD Promontory B450
SpecPicks Verdict
SpecPicks scored ASROCK B450M PRO4 R2.0 Socket AM4/ AMD B450/ DDR4/ SATA3&USB3.2/… using a rating × review-volume × price-fit model applied to published specs and reviews across the motherboards category. ASRock's motherboards lineup sits within the broader category mid-tier; price and specs are the deciding factors over brand loyalty here. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.
Common buyer scenarios for motherboards of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the retailer's listing before purchase. Prices and stock are set by the retailer and may have moved since this page was last updated.
Key Features
- ASRock USB 3.2 Gen2 Type-A Port (10 Gb/s)
- ASRock Ultra M.2 (PCIe Gen3 x4)
- ASRock Full Spike Protection (for all USB, Audio, LAN Ports)
- ASRock Live Update & APP Shop
- Supports AMD AM4 Socket Ryzen 2000, 3000 and 5000 Series Desktop Processors
Full Specifications
| Brand | ASRock |
|---|---|
| USB 2.0 | 10 |
| Platform | Android |
| CPU Socket | Socket AM4 |
| Model Name | B450M PRO4 R2.0 |
| Chipset Type | AMD B450 |
| Connectivity | USB |
| Model Number | B450M PRO4 R2.0 |
| Built-In Media | - Quick Installation Guide, Support CD, I/O Shield - 2 x SATA Data Cables - 2 x Screws for M.2 Sockets |
| Mfr Part Number | B450M PRO4 R2.0 |
| Number of Ports | 10 |
| Total Usb Ports | 6 |
| Processor Socket | Socket AM4 |
| Total PCIe Ports | 3 |
| Total SATA Ports | 4 |
| Compatible Devices | Personal Computer |
| Memory Clock Speed | 1800 GHz |
| Warranty Description | 3 years |
| Compatible Processors | AMD Ryzen 5000/4000/3000/2000 Series |
| RAM Memory Technology | DDR4 |
Ready to buy?
Amazon shows no buyable offer for ASROCK B450M PRO4 R2.0 Socket AM4/ AMD B450/… at the last check. A similar in-stock product is B450M-HDV R4.0 AMD B450 AM4 Socket Ryzen 2000…. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.
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