Cisco Direct Attach Copper (DAC) Cables - Refurbished, Used

Cisco Direct Attach Cables (DACs) are high-speed, cost-effective twinax copper or active optical cable assemblies designed for short-reach connectivity between SFP+ and QSFP ports in switches, routers, and servers. These cables are factory-terminated, plug-and-play solutions that eliminate the need for separate transceivers, speeding up deployment and lowering system complexity.

Passive DACs offer low latency and minimal power consumption, ideal for connections within racks up to around 3–7 meters. For slightly longer runs—up to 10 meters or more—active DACs incorporate signal conditioning electronics to extend reach while preserving signal integrity. This makes them highly suitable for compact, high-density networking environments.

Cisco DACs support multi-gigabit speeds, including 10G, 25G, 40G, and 100G, matching modern bandwidth requirements. Their twinax construction ensures stable performance with reduced EMI, while the plug-and-play design simplifies cable management and accelerates infrastructure scaling.

At NetworkTigers, both refurbished and used Cisco Direct Attach Cables are available. Refurbished units undergo rigorous testing and verification to ensure they meet performance standards. Used units are confirmed ready for production networks, providing reliable performance from day one. Inventory is maintained in stock for fast fulfillment, orders ship quickly, and every purchase includes a 365-day warranty, offering lasting peace of mind and value.