Key FeaturesIntel Atom Processor C3558,Single Socket FCBGA1310 supported,CPU TDP support 16WIntel Quick Assist TechnologyUp to 256GB Registered ECC DDR4-2133MHz,Up to 64GB Unbuffered ECC/Non-ECC DDR4-2133MHz; in 4 DIMM slotsExpansion slots:1 PCIe 3.0 up to x4 (in x4 slot)*Flexible I/O - software configurable in BIOS setupM.2 Interface: PCIe 3.0 x2 and SATAM.2 Form Factor: 2242, 2280Product SKUsMBD-A2SDi-4C-HLN4FPhysical StatsForm FactorMini-ITXDimension6.7" x 6.7" (17.02cm x 17.02cm)ProcessorCPUIntel® Atom® Processor C3558Single Socket FCBGA-1310 supported, CPU TDP supports Up to 16W TDPCoreUp to 4 cores, 4 threads / 8MB CacheSystem MemoryMemory Capacity4 DIMM slotsUp to 256GB ECC RDIMM, DDR4-2133MHz; Up to 64GB Unbuffered ECC/non-ECC UDIMM, DDR4-2133MHzMemory TypeECC/non-ECC DDR4 RDIMM Unbuffered (Operating speed up to 2133)2400/2133/1866/1600 (Operating speed up to 2133)DIMM Sizes4GB, 8GB, 16GB, 32GB, 64GBMemory Voltage1.2VError DetectionCorrects single-bit errorsDetects double-bit errors (using ECC memory)On-Board DevicesChipsetSystem on ChipIPMIASPEED AST2400 BMCGraphics1 ASPEED AST2400 BMC port(s)Network ControllersQuad LAN with Intel® C3000 SoC, 1GbESATAInput / OutputLAN4 RJ45 Gigabit Ethernet LAN portsUSB4 USB 2.0 port(s) (2 rear; 2 via header)1 USB 3.2 Gen1 port(s) (1 type A)Video Output1 VGA port(s)Serial Port1 COM Port(s) (1 header)DOM1 SuperDOM (Disk on Module) portsTPM1 TPM HeaderExpansion SlotsPCIe1 PCIe 3.0 up to x4 (in x4 slot)*Number of PCIe lane is configurable via BIOS setup: 0, 2, or 4. Total combined PCIe lanes and SATA ports is up to 8.M.2M.2 Interface: SATA; PCIe 3.0 x2Form Factor: 2280, 2242Key: M-KeySystem BIOSBIOS TypeAMI UEFIBIOS FeaturesUEFI 2.4SMBIOS 2.7.1ManagementSoftwareSuperDoctor® 5, NMI, KVM with dedicated LAN, IPMI2.0, WatchdogSystem Management SoftwareSuperDoctor 5, IPMI (Intelligent Platform Management Interface) v1.5 / 2.0 with KVM supportPower ConfigurationsPower-on mode for AC power recovery, ATX Power connector, +12V DC Power Input, CPU thermal trip support for processor protectionPC Health MonitoringVoltageVBAT, System temperature, System level control, Supports system management utility, Monitors CPU voltages, Chassis intrusion header, 4 fans with tachometer monitoring, 4 -fan status, 3.3V standby, 1.2V (VDIMM), 1.05 (PCH), +5V standby, +5V, +3.3V, +12VLEDUID/Remote UIDTemperatureCPU thermal trip supportFAN4x 4-pin fan headers (up to 4 fans)Thermal control tachometer fan connectors, System level control, Fan speed control, Dual Cooling Zone, 4 fans with tachometer monitoring, Status monitoring for speed control, Pulse Width Modulated (PWM) fan connectors, Support 3-pin fans (w/o speed control)Other FeaturesWOL, UID, System level control, RoHS, M.2 NGFF connector, Dual Cooling Zones, CPU thermal trip support for processor protection, Control of power-on for recovery from AC power loss, Chassis intrusion header, Chassis intrusion detection, ATX Power connector, 12V DC or ATX Power Source, SDDC, Intel® QuickAssist Technology, Innovation Engine, 4-pin 12v DC power connectorOperating EnvironmentOperating Temperature Range0°C - 60°C (32°F - 140°F)Non-Operating Temperature Range-40°C - 85°C (-40°F - 185°F)Operating Relative Humidity Range10% - 85% (non-condensing)Non Operating Relative Humidity Range10% - 95% (non-condensing)