Best price for Dell S2715H 27in is Rp5.000.000 inclusive of GST. This is presently the cheapest offer found from comparing prices from 3 shops in Indonesia.
Response time is measured in milli-seconds (ms) and represents the time it takes for one pixel to go from active (black) to inactive (white) and back again. Needed to adapt to the constantly changing image on the screen. The lower, the better.