Lenovo IdeaPad U310 - Manual (Page 22)

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Specifications
I/O Ports
USB USB 2.0 × 1, USB 3.0 × 2 USB 2.0 × 2, USB 3.0 × 2
Audio Combo audio jack ×1
Communication RJ-45 × 1
Video/Audio HDMI × 1
Memory card slot 2 in 1 slot × 1 (MMC, SD)
Battery pack
Type Li-Polymer
Cells/Capacity 3 cell, 46 Wh 4 cell, 59 Wh
AC adapter
Input 100 - 240 V, 50 - 60 Hz AC
Output voltage 20 V DC
Power 40 W or 65 W 65 W or 90 W
Miscellaneous
Camera 0.3 or 1.0 mega pixels