Pour amener un peu plus d'eau au moulin, voici ce que l'on peut lire chez nos amis anglo-saxons :
The XTX first stages (XTX DST, XTX FST, XTX FSR) have four 3/8" LP ports (referred to as "medium pressure ports" by Apeks) instead of one 1/2" and three 3/8" LP ports of the old DST (ATX50), FST (ATX100), FSR (ATX200) first stages.