The 360SE electronics package provided the same facilities as the 360E but allowed four keyboards to be attached, all being able to be used simultaneously and independently. The working and storage registers were replicated for each keyboard and the calculating logic was time shared between the keyboards.
It had always been possible to use Wang-supplied tee-connectors to attach multiple keyboards to one electronics package but without a "simultaneous" electronics package switching one keybord on would disable all of the others.
The 310E, 320E and 360E electronics packages were all available in "SE" form and the SE form was priced at about twice the E price. With four times the number of users for twice the price, plus extra keyboards, SE units offered significant saving for customers with large numbers of users. In 1968 the 360SE was listed at $3990, compared to $1995 for the 360E.