ONBOARD AUDIO FEATURES

• Realtek ALC886 5.1-channel High Definition Audio

• Audio outputs: Mic-in/Center+Subwoofer, line-in/surround and line out

• S/PDIF audio interface

STORAGE

• 4 Serial ATA ports

- 2 SATA 3.0 ports with data transfer rate up to 6Gb/s

- 2 SATA 2.0 ports with data transfer rate up to 3Gb/s

DIGITAL I/O

• 8-bit Digital I/O connector

- 4-bit GPI (General Purpose Input)

- 4-bit GPO (General Purpose Output)

REAR PANEL I/O PORTS

• 1 DB-9 RS232 serial port

• 1 DB-15 VGA port

• 2 DisplayPorts

• 1 RJ45 LAN port

• 4 USB 3.0 ports

• 4 USB 2.0 ports

• Line-in/Surround, Line out, Mic-in/Center+Subwoofer jacks

I/O CONNECTORS

• 1 connector for 1 external RS232 serial port

• 2 serial interface connectors (TX/RX)

• 1 SDIO slot

• 1 DisplayPort

• 1 LVDS LCD panel connector

• 1 LCD/inverter power connector

• 1 8-bit Digital I/O connector

• 1 front audio connector for line-out and mic-in jacks

• 1 S/PDIF connector

• 4 Serial ATA ports

• 1 LPC connector

• 1 SMBus connector

• 1 24-pin ATX power connector

• 1 4-pin 12V power connector

• 1 chassis intrusion connector

• 1 front panel connector

• 3 fan connectors

EXPANSION SLOTS

• 1 PCIe x16 Gen 3 slot

• 1 PCIe x4 Gen 2 slot

• 2 PCIe x1 slots (PCIe 2.0)

• 1 Mini PCIe slot (PCIe 2.0) (PCIe signal only)

- USB signal: optional

- Supports half/full size Mini PCIe card

SUPPORTED COM EXPRESS MODULES

• Basic

• Compact

DAMAGE FREE INTELLIGENCE

• Legacy Super I/O support*

- Monitors 5V/1.5V/12V/3.3V

- Monitors SIO_Fan 1/SIO_Fan 2/System fan

ROM INTERFACE

• 1 SPI interface

- Supports up to 64Mbit

• 1 LPC/FWH interface

TEMPERATURE

HUMIDITY

• 10% to 90%

POWER OUTPUT

• 12V, 5VSB, VCC_RTC (ATX mode)

12V, 5V, VCC_RTC (AT mode)

12V, VCC_RTC (AT mode)

PCB

• Dimensions

- microATX form factor

- 244mm (9.6") x 244mm (9.6")

• Compliance

CERTIFICATION

• CE

• FCC Class B

• RoHS

COM Express Carrier Board

Specifications

COM331-B

Packing List

Optional Items

* Optional and is not supported in standard model. Please contact your sales representative for more information.

representative for the exact revision offered in your area. All product names mentioned are trademarks of their respective companies. © December 18, 2019 DFI Inc.

• 1 COM331-B board

• 2 Serial ATA data cables

• 1 COM port cable (with bracket)

• Serial ATA data cable

• COM port cable

• I/O shield

• Serial ATA power cable