Reference Guide

 25
 Vostro 420
1
 PS/2
2
 VGA
3
 USB 2.0 (2)
4

5

6

7
 line-in
8

9

10
 USB 2.0 (4)
11
 eSATA
12

13
 (9 )
14
 PS/2
45
10
9
6
2
7
8
12
1 3
1314
11
book.book Page 25 Wednesday, September 10, 2008 6:40 PM