Dell Inspiron 5425 - Memory; Communications; Network adapter; Wireless

Memory
Inspiron
14R-5420/7420/
M421R-5425
Inspiron
15R-5520/7520/
M521R-5525
Connectors two internally-accessible
DDR3 SODIMM sockets
two internally-accessible
DDR3 SODIMM sockets
Capacities 2 GB and 4 GB 2 GB and 4 GB
Minimum memory 2 GB 2 GB
Maximum memory 8 GB 8 GB
Memory type 1600 MHz DDR3 SODIMM 1600 MHz DDR3
SODIMM
Memory configurations
supported
2 GB, 4 GB, 6 GB, and
8 GB
2 GB, 4 GB, 6 GB, and
8 GB
Communications
Inspiron
14R-5420/7420/
M421R-5425
Inspiron
15R-5520/7520/
M521R-5525
Modem (optional) external V.92 56 K USB
modem
external V.92 56 K USB
modem
Network adapter 10/100 Ethernet LAN on
system board
(Inspiron 14R-5420,
Inspiron M421R-5425)
10/100/1000 Ethernet
LAN on system board
(Inspiron 14R-7420)
10/100 Ethernet LAN on
system board
(Inspiron 15R-5520,
Inspiron M521R-5525)
10/100/1000 Ethernet
LAN on system board
(Inspiron 15R-7520)
Wireless WLAN, WiMax, Wi-Fi
abgn/bgn, Wi-Di
(optional), and Bluetooth
wireless technology
WLAN, WiMax, Wi-Fi
abgn/bgn, Wi-Di
(optional), and Bluetooth
wireless technology