Dell XPS 15 (L521X, Mid 2012) - Manual (Page 3)

Communications
Network adapter 10/100/1000 Mbps Ethernet controller on system board
Wireless • 2x2 WLAN b/g/n
• Intel Wireless Display (WiDi) 3.0
• Bluetooth 4.0
Video
Controller • NVIDIA GeForce GT630M (1 GB GDDR5)
• NVIDIA GeForce GT640M (2 GB GDDR5)
Audio
Controller Intel High Definition Audio with Waves MaxxAudio4
Speaker single 4-ohms speakers in both the left and right speaker
assembly
Internal speaker
amplifier up to 3 W per channel; up to 5 W total power
Internal microphone dual digital microphones in the camera assembly
Volume controls
program menus and keyboard media-control keys
Storage
Interface SATA
Drives supported • one 63.50 mm (2.50 inches) SATA hard drive
• one 63.50 mm (2.50 inches) solid-state drive
• one mSATA drive through a mini-card
Storage drives
configurations • one SATA hard drive
• one 63.50 mm (2.50 inches) solid-state drive (SSD)
• one SATA hard drive + one mSATA
• one 63.50 mm (2.50 inches) solid-state drive (SSD) +
one mSATA
Optical drives
supported • one 133.35 mm (5.25 inches) slot load DVD+/-RW
drive
• one 133.35 mm (5.25 inches) slot load Blu-ray reader
and DVD+/-RW drive