Abit AB-SA7 Manual page 45

Installing the Motherboard
Figure 2-8 shows the SA7 back panel connectors. These connectors are used for connecting outside
devices to the motherboard. We will describe which devices will attach to these connectors below.
(20). PS/2 Keyboard Connector
(21). PS/2 Mouse Connector
Attach a PS/2 mouse to this 6-pin Din-connector.
(22). Serial Port COM1 & COM2 Port Connectors
This motherboard provides two COM ports, you can connect an external modem, mouse or other devices
that support this communication protocol to these connectors.
You can decide which external devices you want to connect to COM1 and COM2. Each COM port can
only have one device connected at a time.
(23). Parallel Port Connector
This parallel port is also called an "LPT" port, because it usually connects to the printer. You can connect
other devices that support this communication protocol, like an EPP/ECP scanner, etc.
Figure 2-8. SA7 back panel connectors
Attach a PS/2 keyboard connector to this 6-pin Din-connector.
If you use an AT keyboard, you can go to a computer store to
purchase an AT to ATX converter adapter, then you can
connect your AT keyboard to this connector. We suggest you
use a PS/2 keyboard for best compatibility.
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User's Manual