a plug - in module includes a pair of opposite sidewalls parallel to each other and a latch mechanism . the latch mechanism includes a pair of sliders , a bail and a pair of ejectors . the sliders are sliderably attached to the sidewalls and are configured and arranged to linerear move relative to the sidewalls . the bail is attached to the sidewalls and one ends of the sliders and is configured and arranged such that the rotate motion of the bail results in the linerear movement of the sliders . the ejectors are pivotally attached to the sidewalls and cooperate with the sliders . the ejectors are configured and arranged such that the rotation of the bail results in the linerear movement of the sliders to actuate the ejectors to outwardly rotate relative to the sidewalls adapted for deflecting the latch tab of the module receptacle to separate the plug - in module from the module receptacle .