The rugged rack panel is ideal for LAN interconnects or cross-connect patching. The rear cable minder allows tie down of incoming cables securing your connections. The full compliment of ST type couplers (bulkhead adapters) are already installed for immediate use. These panels feature heavy gauge steel with strong welded braces for cable management. There are two versions one for Multi-mode applications (bronze alignment sleeves) and one for Single-mode (ceramic alignment sleeves).