IBM 2193 - Manual (Page 180)

A-12 IBM Personal Computer User Guide
Table 8: Connector functions (Continued)
Connector Function
J14 CD Audio connector
J15 Passive speaker connector
J19 COM 1 connector
J21 ATX Power connector
J22 Front USB, Audio Line In, Audio Line Out and Volume control
KBMS1 PS/2 Keyboard and Mouse connector
U16 VGA connector