MSI X99A SLI LGA 2011-3 specs

- Supports Intel Core i7 Extreme Edition processors for the LGA 2011-3 socket
- Supports Intel Turbo Boost Max Technology 3.0 (depending on the CPU)

Intel X99 chipset

8 x DDR4 memory slots, supports up to 128 GB
- Supports DDR4 3333 (OC), 3200 (OC), 3000 (OC), 2933 (OC), 2800 (OC), 2666 (OC), 2600 (OC), 2400 (OC), 2200 (OC), and 2133 MHz
Quad-channel memory architecture
Supports ECC/non-ECC unbuffered memory
Supports DDR4 ECC RDIMM memory
Supports Intel Extreme Memory Profile (XMP)

3 x PCIe 3.0 x16 slots
- Supports x16, x16/x16, x8/x16/x8 with 40-lane CPUs
- Supports x16, x16/x8, x8/x8/x8 with 28-lane CPUs
2 x PCIe 2.0 x1 slots

- Supports 3-Way AMD CrossFire Technology
- Supports 3-Way NVIDIA SLI Technology

ASMedia ASM1142 Chipset
- 1 x 10 Gb/s USB 3.1 Type-C port (back panel)
- 1 x 10 Gb/s USB 3.1 Type-A port (back panel)

ASMedia ASM1074 Chipset
- 4 x 5 Gb/s USB 3.0 Type-A ports (back panel)

Intel X99 Chipset
- 4 x 5 Gb/s USB 3.0 ports available through the internal USB 3.0 connectors
- 8 x 480 Mb/s USB 2.0 ports (four on the back panel, four available through the internal USB 2.0 connectors)

Intel X99 Chipset
- 10 x SATA III 6 Gb/s ports (2 ports from the SATA Express port)
- SATA1~6 supports RAID 0, 1, 5, and 10
- SATA 7~10 only supports IDE and AHCI modes

1 x M.2 Slot (Key M)
- Supports up to PCIe 3.0 x4 and SATA III 6 Gb/s
- Supports 2242, 2260, 2280, and 22110 storage devices

1 x U.2 port
- Supports PCIe 3.0 x4 NVMe storage

1 x SATA Express port (compatible with two SATA ports)
- Supports up to PCIe 2.0 x2

- Supports Intel Smart Response Technology

*The SATA Express port (including SATA5~6) will be unavailable when installing an M.2 SATA storage device in the M.2 slot (for 40-lane CPUs only). The SATA Express port (including SATA5~6) is also unavailable when installing an M.2 storage device in the M.2 port (for 28-lane CPUs only)
**U.2 and Intel Smart Response Technology support is dependent upon the CPU
* 40-lane CPUs support up to PCIe 3.0 x4 and SATA III 6 Gb/s
* 28-lane CPUs (i7-5820K / i7-6800K) support up to PCIe 2.0 x2 and SATA III 6 Gb/s

Realtek ALC1150 Codec
- 7.1-channel HD audio
- Supports S/PDIF output

1 x Intel Gigabit LAN controller

- 1 x 24-pin ATX main power connector
- 1 x 8-pin ATX 12 V power connector
- 1 x 4-pin CPU fan connector
- 1 x 4-pin Water Pump connector
- 3 x 4-pin system fan connectors
- 1 x Front panel audio connector
- 2 x Front panel connectors
- 1 x TPM module connector
- 1 x Chassis Intrusion connector
- 1 x Clear CMOS jumper
- 1 x Power button
- 1 x Reset button
- 1 x Multi-BIOS switch
- 1 x RGB LED connector
- 1 x Slow mode booting jumper

- 1 x PS/2 keyboard/ mouse combo port
- 1 x Clear CMOS button
- 1 x Optical S/PDIF OUT connector
- 5 x OFC audio jacks

Nine mounting holes

- 12.0 x 9.6" / 30.5 x 24.4 cm
- ATX form factor