A patch panel (4) comprises a frame (3), at least one plug-in module (2) comprising connectors, the at least one plug-in module is arranged in such a way as to slide between a pushed-in position in which the plug-in module (2) is placed in a housing in the frame (3) and an extracted position in which the plug-in module (2) is outside the housing. The panel (4) further comprises: a device (1) for attaching the plug-in module (2) to the frame (3), the attachment device (1) comprises: at least one flexible elongate body (11) arranged in such a way as to slide with respect to the frame (3) and/orto the plug-in module (2); a first end (12) designed to attach the plug-in module (2) to the attachment device (1) when the plug-in module (2) is in the extracted position; and a second end (13) designed to attached the attachment device (1) to the frame (3) when the plug-in module (2) is in the extracted position.