Abstract: A fiber optic tester for testing at least two fiber optic devices substantially simultaneously, comprising: a housing having a light source and at least one housing connector, the light source interior to the housing; at least one adapter having at least one first connector and at least two second connectors, the at least one first connector removably and matingly connected to the at least one housing connector; the at least two second connectors adapted to removably and matingly connect to at least two fiber optic device input connectors; the fiber optic tester directing light into the at least two fiber optic device input connectors, when the at least two second connectors are removably matingly connected to the at least two fiber optic device input connectors, the presence and/or absence of light from output connectors of the at least two fiber optic devices indicating the condition of the fiber optic devices.