PC ISA Card Pinout and Board Size

EISA bus pinout isa slot pinout ISA is Industry Standard Architecture, and was provided in the PC motherboard, so it is pretty old, 16 bit and the EISA with deeper 32 bit isa slot uses The ISA card is a fairly trivial piece of hardware, using IO ports or memory-mapping only In this case, it is pretty likely an USB-to-ISA or

isa expansion slot 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