A cable management system with an inspection window allows a technician to see available ports in a telecommunications module. The cable management systems inspection window is substantially transparent to permit visual access to underlying ports and associated electrical connectors. The inspection window is solid to prevent physical access to the electrical connectors, thereby preventing contamination, short-circuiting or other damage. The visual access permitted by an inspection window prevents the need to remove a cable trough to find available ports, which reduces the chance of causing a disruption in service by inadvertently disconnecting a cable that is in or around the cable trough.