EA203 series is colored white with orange and blue stripes, which match the corporate identity of Railink and Kereta Api Indonesia (KAI).

Around the passenger window, it is given a black color like the latest KAI executive trains which gives it the impression of elegant luxury.

The passenger seats on this EMU cannot be rotated, and have a configuration like the latest Indonesian railway economy trains, where seats number 1-5 face the direction of the train's journey downstream while numbers 6-10 face the opposite direction.

In addition, there are also four television screens at each end of the row of chairs, which are used to show entertainment to EMU Railink users.

This is due to the use of accordion-type connection covers which are also used on the ex-Japanese EMU belonging to Kereta Commuter Indonesia.