Owner manual

Video
Inspiron
14R-5420/7420/
M421R-5425
Inspiron
15R-5520/7520/
M521R-5525
Video memory
Integrated Shared Shared
Discrete 1 GB (Inspiron 14R-5420,
Inspiron M421R-5425)
1 GB (Inspiron 15R-5520,
Inspiron M521R-5525)
2 GB (Inspiron 14R-7420) 2 GB (Inspiron 15R-7520)
Ports and
Connectors
Inspiron
14R-5420/7420/
M421R-5425
Inspiron
15R-5520/7520/
M521R-5525
Audio one microphone-in port
one stereo headphone/
microphone combo port
one digital microphone
one microphone-in port
one stereo headphone/
speaker port
one digital microphone
Mini-Card one half-size Mini-Card
slot
one full-size Mini-Card
slot (optional)
(Inspiron 14R-5420/7420)
one half-size Mini-Card
slot
one full-size Mini-Card
slot (optional)
HDMI one 19-pin port one 19-pin port
Network adapter one RJ45 port one RJ45 port
USB three 9-pin USB
3.0-compliant ports
one 9-pin USB
3.0-compliant port with
PowerShare and Windows
debugging
three 9-pin USB
3.0-compliant ports
one 9-pin USB
3.0-compliant port
with PowerShare and
Windows debugging
Media Card Reader one 8-in-1 slot one 8-in-1 slot
VGA one 15-hole port one 15-hole port
mSATA (optional) one mSATA port that
supports up to 32 GB
(Inspiron 14R-5420/7420)
one mSATA port that
supports up to 32
GB (Inspiron 15R-
5520/7520)