Dell Vostro 3550 (Early 2011) - Manual (Page 105)

Ports and Connectors
Vostro 3550 two USB 3.0-compliant connectors, one USB 2.0-
compliant connector and one eSATA/USB 2.0-
compliant connector
Vostro 3555 three USB 3.0-compliant connectors and one eSATA/
USB 2.0-compliant connector
Vostro 3750 two USB 3.0-compliant connectors, one USB 2.0-
compliant connector and one eSATA/USB 2.0-
compliant connector
Memory card reader one 8-in-1 memory card reader
fingerprint reader one
Keyboard
Number of keys
Vostro 3350/ 3450/ 3550/
3555
United States: 86 keys, United Kingdom: 87 keys, Brazil:
87 keys, and Japan: 90 keys
Vostro 3750 United States: 101 keys United Kingdom: 102 keys
Brazil: 104 keys Japan: 105 keys
Layout QWERTY/AZERTY/Kanji
Touchpad
Active Area:
Vostro 3350/ 3450/ 3550/ 3555
X-axis 80.00 mm
Y-axis 40.70 mm
Vostro 3750
X-axis 95.00 mm
Y-axis 52.00 mm
Display
Vostro 3350
Type white Light Emitting Diode (WLED) display
Size 13.3 inch high definition (HD)
105