Intel C246 | LGA1151 | CPU's Xeon UP | Maximum number of CPUs 1 | ATX | 1xPCI-Express 3.0 1x | 1xPCI-Express 3.0 4x | 1xPCI-Express 3.0 8x | 2xPCI-Express 3.0 16x | 1xM.2 | 1xU.2 | DDR4 | 2666/2400 MHz | Memory features UDIMM/ECC | Memory slots 4 | 1xHDMI | 1xDisplayPort | 2xUSB 2.0 | 4xUSB 3.1 | 1xCOM | 1xOptical S/PDIF | 1xStereo jack 3.5mm | 1xMicrophone jack 3.5mm | 1xHeadphones jack | 2xRJ45 | Video | Audio | RAID SATA 0, 1, 5, 10 | Included Accessories 1 x I/O shield1 x Quick start guide4 x SATA III 6Gb/s cables1 x CrossFire™ bridge