ASRock B450 PRO4 Motherboard

ASRock B450 PRO4

Brand
ASRock
Model
B450 PRO4
UPC
4717677336252
$198–$218estimated range · from catalog price Sep 3, 2026

2018 mainstream ATX AM4 B450 board with dual M.2, USB 3.1 Gen2, and no Wi‑Fi—good for first builds and affordable overclocking.

TierMainstream?GixCore tierWhat a part was built to do — not what it costs.EntryBudgetMainstreamHigh endEnthusiastFlagship A part can be cheap because it is an ageing flagship, or because it is a current entry-level model. The tier tells you which.
ReleasedJul 2018
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SocketAM4
ChipsetB450
MemoryDDR4
Max RAM speed3200 MHz
Form factorATX
RAM slots4
M.2 slots2
PCIe x164
GixCore Editorial

Product overview

ASRock’s B450 Pro4 arrived on July 31, 2018, as part of AMD’s B450 (400‑series) platform for 2nd‑Gen Ryzen “Pinnacle Ridge” on socket AM4.SourceASRock

Positioned as a mainstream B‑series ATX board, it exists to deliver affordable overclocking and solid I/O without X‑series pricing. It offers four DDR4 DIMM slots, dual M.2 (one PCIe 3.0 x4), PCIe 3.0 expansion, Gigabit LAN, USB 3.1 Gen2 Type‑A/C, and no onboard Wi‑Fi—well‑suited to first‑time builders and expansion/multi‑M.2 use cases. Notable: the secondary M.2 slot supports 22110‑length SSDs. ASRock does not mark it discontinued as of July 2026.SourcePCWorldSourceASRock

Best for
  • first-time builders
  • expansion/multi-M.2
  • overclocking
  • high-speed memory
Official product specifications

Specifications

At a glance iEach dot represents a catalog model. Farther right means a higher measured value, not necessarily a better fit.Measured against the motherboards catalog
Current modelCatalog models
Max RAM speed3200 MHz
Higher than 6% of motherboards
RAM slots4
Higher than 93% of motherboards
M.2 slots2
Higher than 45% of motherboards
Socket
AM4
Memory
DDR4
WiFi
No
Integrated Graphics
Yes
USB
3.1
Max Memory Size
64 GB
ECC Support
Yes
Chipset
B450
Max RAM speed
3200 MHz
Form factor
ATX
RAM slots
4
M.2 slots
2
PCIe x16
4
Processor Generation
1000, 2000, 3000, 4000, 5000
Pci E
3.0
M 2
PCI-E
Sata Slots
4
Sata Speed
6 Gb/s
Pci E Slots
4
Tdp
50 W
Nvme
Yes
Pci E X1
4
Cpu Brand
AMD
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