- Dual Channel DDR4 Memory Technology
- 2 x DDR4 DIMM Slots
- AMD Ryzen series CPUs (Matisse) support DDR4 3200 / 2933 / 2667 / 2400 / 2133 ECC & non-ECC, un-buffered memory*
- AMD Ryzen series CPUs (Pinnacle Ridge) support DDR4 3200+(OC) / 2933(OC) / 2667 / 2400 / 2133 ECC & non-ECC, un-buffered memory*
- AMD Ryzen series CPUs (Picasso) support DDR4 2933 / 2667 / 2400 / 2133 non-ECC, un-buffered memory*
- AMD Ryzen series CPUs (Summit Ridge) support DDR4 3200+(OC) / 2933(OC) / 2667 / 2400 / 2133 ECC & non-ECC, un-buffered memory*
- AMD Ryzen series CPUs (Raven Ridge) support DDR4 3200+(OC) / 2933 / 2667 / 2400 / 2133 non-ECC, un-buffered memory*
- Max. capacity of system memory: 64GB*
- Supports Extreme Memory Profile (XMP) memory modules
- 15μ Gold Contact in DIMM Slots
*For Ryzen Series CPUs (Picasso and Raven Ridge), ECC is only supported with PRO CPUs.
Please refer to below table for DDR4 UDIMM maximum frequency support.
Ryzen Series CPUs (Matisse):
![](https://www.asrock.com/mb/Memory/2xMatisse-3200.png)
Ryzen Series CPUs (Pinnacle Ridge):
![](https://www.asrock.com/mb/Memory/2xPR_2933.png)
Ryzen Series CPUs (Picasso):
![](https://www.asrock.com/mb/Memory/2xPicasso-2933-2667.png)
Ryzen Series CPUs (Summit Ridge):
![](https://www.asrock.com/mb/Memory/2xSR_2667.png)
Ryzen Series CPUs (Raven Ridge):
![](https://www.asrock.com/mb/Memory/2xRR_2933-2667.png)
SR: Single rank DIMM, 1Rx4 or 1Rx8 on DIMM module label
DR: Dual rank DIMM, 2Rx4 or 2Rx8 on DIMM module label
**Due to the operating system limitation, the actual memory size may be less than 4GB for the reservation for system usage under Windows
® 32-bit OS. For Windows
® 64-bit OS with 64-bit CPU, there is no such limitation.