A testing device in accordance with various embodiments may include: a plurality of first terminals configured to be connected to a plurality of devices-under-test, wherein each first terminal of the plurality of first terminals may be configured to be connected to a respective device-under-test of the plurality of devices-under-test; a signal interface configured to be connected to a tester; and a circuit configured to exchange an identical first signal with each device-under-test of the plurality of devices-under-test through a respective first terminal of the plurality of first terminals, and to exchange at least one interface signal with the tester through the signal interface.