Specifications:

Triple Socket Car Adapter with Two USB Ports
Input: DC12-24V through car cigarette plug  
Output: 5V/2.1A,3.1A, 4.8A （total）
2 USB ports
Smart IC is optional
Three 12V sockets 
Three switches to control the sockets 
Maximum output current 8A  
Fused protection     
With 1 meter straight cord
with CE & ROHS
Packing:

double blister
carton size:53.8*43.8*42.1cm/6pcs/inner box/72pcs/ctn