Dell Vostro A840 Setup And Quick Reference Manual page 23

Memory (continued)
Minimum memory
Maximum memory
Ports and Vostro A840
Connectors
Audio microphone connector, stereo
headphone/speakers connector
Mini-Card one PCI-E Mini-Card slot
Modem RJ-11 port
Network adapter RJ-45 port
USB two 4-pin USB 2.0-compliant connectors two 4-pin USB 2.0-compliant connectors
Video 15-hole connector
IEEE 1394 4-pin mini
Vostro A840
512 MB
4 GB
Vostro A860
512 MB
4 GB
Vostro A860
microphone connector, stereo headphone/
speakers connector
one PCI-E Mini-Card slot
RJ-11 port
RJ-45 port
15-hole connector
4-pin mini
Specifications
23