Dell Vostro A100 Setup And Quick Reference Manual page 24

Specifications
Drives (Continued)
Available devices
Connectors
External connectors:
Video
Network adapter
Serial
Parallel
USB
Audio
24
Vostro A100
• up to two 3.5-inch SATA hard drives
• two 5.25-inch optical disc drive bays
Vostro A100
15-hole connector
RJ45 connector
N/A
N/A
two front-panel, and four back-panel
USB 2.0-compliant connectors
three connectors for 2.0 support
Vostro A180
• up to four 3.5-inch SATA hard drives
• two 5.25-inch optical disc drive
bays
Vostro A180
15-hole connector
RJ45 connector
9-pin connector
25-pin connector
two front-panel, and four back-panel
USB 2.0-compliant connectors
three connectors for 5.1 support