VIEWSONIC EBOOK VS13394 - Manual (Page 16)

ViewSonic VEB620_VEB625 
Features and Functions (continued)
Bottom View
The ports for SD card is located on the bottom of your eBook
device. Open the cover tab and fold it back to use these slots.
* Network switch (WiFi) only for VEB625 model
Leather
Case Hook
Network (WiFi) Switch
(for VEB625)
Headphone Jack
USB/Power Port
Plug in your USB cable here
SD Card Slot
Reset Button Included
WiFi (for VEB625)