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

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

Bottom line: The Asrock B450 PRO4 R2.0 AM4 AMD Promontory B450 SATA 6Gbps ATX AMD is a specs-and-price decision rather than a crowd-consensus one in the motherboards category. Check the specification table below against one or two close alternatives — on price and spec fit, not on star ratings.

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By , Founder & Editor-in-Chief · Listing data updated

Mike Perry — Hardware researcher since 2014, focused on GPU performance across gaming, rendering, and local-LLM inference. Synthesises community benchmarks, manufacturer specs, and public forum data into actionable buying guides.

Pros & Cons

Pros

  • ✓ Supports DDR4 3200+ (OC)
  • ✓ Backed by ASRock's warranty and support channels

Cons

  • ✗ Confirm socket / form-factor / power-rating compatibility against your build before ordering
  • ✗ Price, stock, shipping and returns are set by the retailer and may have changed since this page was last updated

Manufacturer description

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 7.1 CH HD Audio (Realtek ALC892/897 Audio Codec) 6 SATA3, 1 Ultra M.2 (PCIe Gen3 x4), 1 M.2 (PCIe Gen3 x2 & SATA3) 2 USB 3.2 Gen2 (Rear Type A+C) 6 USB 3.2 Gen1 (2 Front, 4 Rear) Realtek Gigabit LAN

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SpecPicks Verdict

SpecPicks scored Asrock B450 PRO4 R2.0 AM4 AMD Promontory B450 SATA 6Gbps ATX AMD… 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

  • 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

Full Specifications

BrandASRock
Weight4000 g
USB 2.02
PlatformWindows 10
CPU SocketSocket AM4
Model NameB450 PRO4 R2.0
Chipset TypeAMD B450
Model NumberB450 PRO4 R2.0
Graphics OutputHDMI, Display Port, D-Sub
Mfr Part NumberB450 PRO4 R2.0
Number of Ports28
Total Usb Ports10
Processor SocketSocket AM4
Total PCIe Ports6
Total SATA Ports6
Compatible DevicesPersonal Computer
Memory Clock Speed1 GHz
Warranty Description3 years
Compatible ProcessorsAMD A Series
RAM Memory TechnologyDDR4

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Asrock B450 PRO4 R2.0 AM4 AMD Promontory B450 SATA 6Gbps ATX AMD Motherboard is listed on Amazon. Price, availability, shipping and returns are set by Amazon and its sellers — check the listing for current terms. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.

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