Dell XPS 15Z (L511Z, Mid 2011) - Manual (Page 84)

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Specifications
Media Card Reader
Cards
supported Secure Digital (SD)
memory card
Secure Digital Input
Output (SDIO)
Secure Digital High
Capacity (SDHC)
Secure Digital eXtended
Capacity (SDXC)
Memory Stick
Memory Stick PRO
Memory Stick eXtended
Capacity (MSXC)
MultiMedia Card (MMC)
xD‑Picture Card
Camera
Camera
resolution 1.3 megapixel HD
Video resolution 1280 x 1024
Communications
Modem
(optional) external V.92 56 K USB
modem
Network
adapter 10/100/1000 Ethernet
LAN on system board
Wireless WLAN and Bluetooth
wireless technology
Audio
Audio controller Realtek ALC269
Speakers 2 x 1.5 Watt
Volume controls software program
menus and media
controls