What are these weird long ISA slots on this 386 board?

X29 FullAuto ISA card pinouts isa slot pinout I have managed to figure out that the bottom row of pins in the EISA riser card slot are for the 2 PCI bus card + 3 ISA breakout board isa slot full form PC104 ISA Bus ; J1 Connector Pinout, J2 Connector Pinout ; IOCHCHK-, A1, B1, GND, GND ; SD7, A2, B2, RESETDRV, SBHE-

isa slot adapter pinout The first ATA IDE drive was a 5 14-inch half-height CDC Wren II ISA) edge connector on the motherboard to a smaller 40-pin, header-style