The fiber optic cable StarTech SFPCMM5M is actually a passive Twinax Direct Attach (DAC) SFP+ copper cable designed for short-distance 10 Gbit/s Ethernet links in data centers and professional environments. With a length of 5 m, it integrates SFP+ to SFP+ connectors on both ends, enabling direct connection between switches, routers and servers with SFP+ ports without additional optical transceivers, reducing complexity and cost compared to traditional fiber solutions. The model is programmed and tested to be Cisco compatible, including equivalence with Cisco SFP-H10GB-CU5M and use in devices such as Firepower, ASR920 and ASR9000, and it meets MSA (Multi-Source Agreement) specifications, easing integration into standards-based infrastructures. As a low-power passive DAC, it requires no extra power or active components, helping lower energy use and heat dissipation in the rack while delivering low latency, critical for high-performance applications, link aggregation or Top-of-Rack switch interconnects. The Twinax copper design provides a stable signal over short distances, ideal for connections within the same rack or between adjacent racks, while hot-swap support lets you connect or replace the cable without shutting down devices, minimizing service interruptions. Built with a durable jacket and components for continuous professional use, the StarTech SFPCMM5M is a reliable, standards-based solution for short-range 10GbE SFP+ links in enterprise and data center networks.
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