16
Specifications
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Storage
Intel
®
 X299 Chipset
 y 8x SATA 6Gb/s ports*
 y 3x M.2 slots (Key M)
  M2_1 & M2_2 support up to PCIe 3.0 x4 and SATA 6Gb/s, 
2242/ 2260/ 2280/ 22110 storage devices
  M2_3 supports up to PCIe 3.0 x4, 2242/ 2260/ 2280 
storage devices**
  Intel
®
 Optane™ Memory Ready for M2_1, M2_2 slots ***
 y 1x U.2 port
  Supports PCIe 3.0 x4 NVMe storage
* The SATA1 connector will be unavailable when a SATA M.2 SSD has been 
installed in the M.2_1 slot.
* The SATA2 connector will be unavailable when a SATA M.2 SSD has been 
installed in the M.2_2 slot.
** M2_3 slot and PCIe slots share the bandwidth. Please refer to page 34 for 
details.
*** Before using Intel
®
 Optane™ memory modules, please ensure that you have 
updated the drivers and BIOS to the latest version from MSI website.
RAID
Intel
®
 X299 Chipset
 y Supports RAID 0, RAID1, RAID 5 and RAID 10 for SATA 
storage devices
 y Supports RAID 0 and RAID 1 for M.2 PCIe storage devices
USB
 y Intel
®
 X299 Chipset
  4x USB 3.1 Gen1 (SuperSpeed USB) ports available 
through the internal USB connectors
  6x USB 2.0 (High-speed USB) ports(2 ports on the 
back panel, 4 ports available through the internal USB 
connectors)
 y ASMedia
®
 ASM3142 Chipset
  3x USB 3.1 Gen2 (SuperSpeed USB 10Gbps) ports (1 
Type-C and 1 Type-A port on the back panel, 1 Type-C 
internal connector)
 y ASMedia
®
 ASM1074 Chipset
  6x USB 3.1 Gen1 (SuperSpeed USB) ports on the back 
panel
Audio
 y 1x Realtek
®
 ALC1220 Codec
  7.1-Channel High Definition Audio
  Supports S/PDIF output
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