Epson Equity 320SX PLUS - Manual (Page 111)

Installing an Option Card
Your computer has four standard option slots: three 16-bit
slots and one 8-bit slot. Each slot can accommodate an
option card. You can buy option cards from authorized
Epson dealers as well as other vendors.
This section explains how to install option cards in your
computer. If you need to remove an option card later (to
access jumpers, memory modules, or a math coprocessor), see
“Removing an Option Card” on page 6-13 for instructions.
The illustration below shows the four standard option slots
inside your computer.
Installing and Removing Options 6-9