About this item Socket AM4 Digi Power design 9 Power Phase design Supports 105W Water Cooling (Pinnacle Ridge) Supports 95W Water Cooling (Summit Ridge) Supports 65W Water Cooling (Raven Ridge) Country of origin : China Memory 4x DDR4-3200+(OC)/2933/2667/2400/2133 DIMM Slots Dual Channel ECC Non-ECC Unbuffered Max Capacity of 64GB (AMD Ryzen series CPUs (Pinnacle Ridge)) Slots 2x PCI-Express 3 0 x16 Slots (one runs at x8) 2x PCI-Express 2 0 x16 Slots (two run at x4) 1x PCI-Express 2 0 x1 Slot