GIGABYTE servers are enabled with dynamic fan speed adjustment. Individual fan speed will be automatically adjusted according to the system’s current temperature (according to CPU, DIMM, M.2, HDD, GPU temperature sensors), to achieve excellent cooling and power efficiency. When the BMC detects a temperature change, fan speed will be automatically adjusted accordingly. Fan speed profiles may also be manually created and edited when necessary according to the user’s custom requirements..0MB DDR4 RAM installed.RoHS.Four expansion slots for upgrading your system.Dimensions: 1.7"H x 17.24"W x 28.74"D.Rack mount server.Connectivity interfaces: two PCIe 4.0 x16, 1 x PCIe 4.0 x16 / Open Compute Project mezzanine (OCP) 3.0.Optical drive: no optical drive.Power device: power supply