Gigabit lan / usb connector ( rjusb1 ), Ethernet lan / usb connector ( rjusb2 ), Mini - pci slot ( mpci1 ) – Intel MINI-ITX BOARD AR-B1890 User Manual
Page 26: Compactflash slot ( cfd1 ), Sodimm slot ( dimm1 ), Sodimm slot ( dimm 2 ), Sata1 connector ( sata1 ), Sata2 connector ( sata2 ), Pci - express slot ( pcie1 )

AR-B1890 User’s Manual
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Gigabit LAN / USB Connector ( RJUSB1 )
Standard RJ - 45 Connector / Standard USB Connector
Ethernet LAN / USB Connector ( RJUSB2 )
Standard RJ - 45 Connector / Standard USB Connector
Mini - PCI Slot ( MPCI1 )
Standard Mini - PCI Connector
CompactFlash Slot ( CFD1 )
Standard CompactFlash Connector Type II
SoDIMM Slot ( DIMM1 )
Standard DDRII SoDIMM Connector
SoDIMM Slot ( DIMM 2 )
Standard DDRII SoDIMM Connector
SATA1 Connector ( SATA1 )
Standard Serial ATA Connector
SATA2 Connector ( SATA2 )
Standard Serial ATA Connector
PCI - Express Slot ( PCIE1 )
Standard PCI – Express x 1 Slot