- COM Express® R2.0, Pin-out Type 6
- Supports Compact/Basic modules
- Multiple displays: 1 x LVDS, 1 x VGA, 2 x DP
- Rich I/O: 1 x GbE, 4 x USB 3.0, 4 x USB 2.0, 4 x COM
- microATX form factor
DFI COM331-B with COM Express R2.0, Pin-out Type 6 and microATX form factor


The DFI COM331-B is a Carrier Board COM Express R2.0, Pin-out Type 6 which Supports Compact/Basic modules. The DFI COM331-B has Multiple displays: 1 x LVDS, 1 x VGA, 2 x DP with Rich I/O: 1 x GbE, 4 x USB 3.0, 4 x USB 2.0, 4 x COM alongside microATX form factor.
1 x LVDS
3 x DP
1 x PCIe x4 (Gen 2)
2 PCIe x 1
1 x Full-size Mini PCIe
1 x RS232 Serial Interface Connector
2 x Serial Interface Connector (TX/RX)
4 x USB 2.0
2 x DP
1 x Line-out
1 x Mic-in
2 x Serial Interface Connector (TX/RX)
1 x LVDS LCD Panel Connector
1 x DP
1 x S/PDIF
2 x SATA 2.0 (up to 3Gb/s)
1 x SDIO slot
Storage: -20 to 85°C
Storage: 5 to 90% RH
2 Serial ATA data cables
1 COM port cable (with bracket)
1 QR (Quick Reference)
1 DVD