| Processor | | Q'ty / Socket Type | (1) LGA1151 |
| | Supported CPU Series | 9th/8th Gen. Intel Core i7/i5/i3 Processors |
| | Thermal Design Power (TDP) Wattage | 35W |
| Chipset | | Super I/O | NCT6683D-T |
| | PCH | Intel H310 |
| Memory | | Supported DIMM Qty | (2) DIMM slots |
| | DIMM Type / Speed | Unbuffered DDR4 SO-DIMM 2666/2400 |
| | Capacity | Up to 32GB |
| | Memory channel | 2 Channels |
| | Memory voltage | 1.2V |
| Expansion Slots | | PCI-E | (1) PCI-E Gen3 x16 slot |
| LAN | | Q'ty / Port | (1) GbE, (1) GbE dedicated for IPMI |
| | Controller | Intel I210-AT |
| | PHY | Intel I219-LM (Intel AMT support) |
| Storage | SATA | Connector | (3) SATA |
| Controller | Intel H310 |
| Speed | 6Gb/s |
| RAID | N/A |
| Graphic | | Connector type | (2) Display port 1.2 |
| | Chipset | Intel H310 |
| Input /Output | | USB | (2) USB3.1 Gen1 ports (@ rear) / (2) USB3.1 Gen1 ports (via Cable) |
| | RJ-45 | (1) GbE port / (1) GbE dedicated for IPMI |
| | Front Panel | (1) 2 x 5 header |
| | SATA | (3) SATA-III connectors |
| | Power | DC12V 90W |
| | Display port | (2) Display ports 1.2 |
| System Monitoring | | Chipset | NCT6683D-T |
| | Fan | Total (2) 4-pin headers |
| | Temperature | Monitors temperature for CPU & system environment |
| | Voltage | Monitors voltage for CPU, memory & chipset |
| | LED | Processor fail LED indicator |
| | Others | Watchdog timer support |
| BIOS | | Brand / ROM size | AMI / 32MB |
| | Feature | Hardware Monitor / User Configurable FAN PWM Duty Cycle / Console Redirection / ACPI sleeping states S0,S3,S5 / ACPI 6.2 |
| Physical Dimension | | Form Factor | mini-ITX |
| | Board Dimension | 6.69" x 6.69" (170 x 170mm) |
| Regulation | | FCC (SDoC) | Class B |
| | CE (DoC) | Class B |
| | RCM | Class B |
| | VCCI | Class B |
| Operating Environment | | Operating Temp. | 0° C ~ 55° C (32° F~ 131° F) |
| | Non-operating Temp. | - 40° C ~ 70° C (-40° F ~ 158° F) |
| | In/Non-operating Humidity | 90%, non-condensing at 35° C |
| RoHS | | RoHS 6/6 Compliant | Yes |
| Operating System | | OS supported list | Please refer to our AVL support lists. |
| Package Contains | | Motherboard | (1) S5557 Motherboard |
| | Manual | (1) Quick Installation Guide |
| | I/O Shield | (1) I/O Shield |
| Cable | SATA | (1) SATA power cable / (2) SATA signal cables |
