Model
Brand
ASUS
Series
Prime
Model
X299-A II
Supported CPU
CPU Socket Type
LGA 2066
CPU Type
Intel Socket 2066 Core X-Series Processors
* Refer to www.asus.com for CPU support list
Supported CPU Technologies
Turbo Boost Technology 3.0
* The Intel Turbo Boost Max Technology 3.0 support depends on the CPU types
Chipsets
Chipset
Intel X299
Memory
Number of Memory Slots
8×288pin
Memory Standard
DDR4 4266(O.C.)/ 4200(O.C.)/ 4133(O.C.)/ 4000(O.C.)/ 3600(O.C.)/ 2666/ 2400/ 2133 MHz Non-ECC, Un-buffered Memory
* Hyper DIMM support is subject to the physical characteristics of individual CPUs.
* Refer to www.asus.com for the Memory QVL (Qualified Vendors Lists).
Maximum Memory Supported
256GB
Expansion Slots
PCI Express 3.0 x16
44-Lane CPU:
3 x PCIe 3.0/2.0 x16 (x16, x16/x16, x16/x16/x8)
28-Lane CPU:
2 x PCIe 3.0/2.0 x16 (x16, x16/x8)*
* PCIeX16_3 will be disabled when using 28-lane CPU.
PCI Express x1
2 x PCIe 3.0/2.0 x1 *
* PCIEX1_1 shares bandwidth with USB 3.2 Gen 2 front panel connector (U31G2_E1). It is disabled by default.
* PCIEX1_2 shares bandwidth with SATA6G_7.
Other Slots
1 x M.2 Socket 1 with E key, type 2230 for WIFI/BT devices support PCIE/USB mode*
* The Wi-Fi E key shares bandwidth with PCIEX1_1.
* The Wi-Fi/BT module is purchased separately.
Storage Devices
SATA 6Gb/s
8 x SATA 6Gb/s port(s)*
* The SATA6G_7 shares bandwidth with PCIeX1_2.
M.2
Intel X299 Chipset:
1 x M.2 x4 Socket 3, with M key, type 2242/2260/2280/22110 storage devices support (SATA & PCIE 3.0 x4 mode)*
1 x M.2 x4 Socket 3, with M key, type 2242/2260/2280/22110 storage devices support (PCIE 3.0 x4 mode)**
Intel Core i9 9000/7000 and i7 9000 X-Series CPU:
1 x M.2 x4 Socket 3, with M key, type 2242/2260/2280/22110 storage devices support (PCIE 3.0 x4 mode)
* The M.2_2 socket shares bandwidth with SATA6G_1 port when using M.2 SATA devices.
** The M.2_1 PCIe mode source is from X299 Chipset when using 44 and 28-lane CPU.
Intel Optane Ready
Yes
* The M.2 PCIE mode source from X299 Chipset supports Intel Optane Memory
SATA RAID
0/1/5/10
