Black Box SM960A 4U Gang Switch 18 Card

Centralize complex switching without adding protocol overhead. The Black Box SM960A 4U Gang Switch System is designed for environments that need precise control over multiple cards, an entire gang switch, or a daisy-chained system. Operating at Layer 1, it remains transparent to data formats and protocols, which is critical when the goal is to route signals cleanly rather than interpret them. This chassis supports CAT6 10-GbE as well as legacy RS-232 connections through optional modules, giving infrastructure teams a practical path for mixed-generation environments. That matters in test labs, integration benches, broadcast workflows, and industrial control spaces where modern Ethernet and older serial equipment often coexist. A separately available controller card can provide local or remote switching control, making the system adaptable to both hands-on and distributed operations. With support for up to 18 cards in a 4U footprint, the SM960A is built for dense, organized signal management. It is the kind of platform you choose when uptime, routing clarity, and operational flexibility matter more than a simple commodity switch.