THIS LISTING IS FOR ONLY 1  UNITs
CONNECTOR : 4.0mm  x  1.35 mm
out put : 19v 3.42a
condition: Great over all 

THANKS FOR YOUR TIME 
AND HAVE A GREAT DAY .
LIST MODELs SUPPORT AS BELOW : 
S510UN    S410U  S410UN 
 S510UQ  S510UN  S510UA  UX461UN 

UX305FA  
UX430UN F510UA UX310U   R541NA X510UAR      Q525UA  UX305FA  S510UA  X541NA  F510U UX32A
S510UA    UX302L UX302LA UX302LG
UX32VD UX305F X200M
ASUS Zenbook U38N U38DT UX21A UX31A UX32 UX32A UX32V UX32VD UX42 UX52VS UX301 UX301LA UX302 UX303LA UX303LN UX303UA UX303UB UX305CA UX305FA UX305LA  UX305UA