Samsung Galaxy Tab 7.7 1GB/16GB/Cellular 
[Preowned]
7 Days warranty

CPU
Chipset Exynos
CPU Dual-core 1.4 GHz Cortex-A9
GPU Mali-400

Memory Slot
MEMORY Card slot microSD, up to 32 GB (dedicated slot)

OS
OS Android OS, v3.2 (Honeycomb)

Camera
Font
2 MP

Rear
Primary 3.15 MP, autofocus, LED flash, check quality
Features Geo-tagging
Video 720p@30fps, check quality

 Display
Super AMOLED Plus capacitive touchscreen, 16M colors
Size 7.7 inches (~65.7% screen-to-body ratio)
Resolution 800 x 1280 pixels (~196 ppi pixel density)