Cisco QSFP to 4xSFP10G 5m Cable | Splitter Cable, Passive Copper — QSFP-4SFP10G-CU5M=

Expand a 40 GbE QSFP+ uplink into four 10 GbE SFP+ connections with Cisco’s passive copper splitter cable. The 5 m length gives you practical reach for top-of-rack and adjacent-rack deployments while keeping the signal path simple and direct. This cable is designed for environments that need to fan out bandwidth without adding powered conversion hardware. By using a passive copper design, it supports straightforward breakout from a Cisco 40-Gigabit QSFP+ transceiver module to four SFP+ network endpoints. That makes it a strong fit for dense switching fabrics, aggregation layers, and migration paths where 10 GbE access remains in service. For infrastructure teams, the value is in clean port utilization and predictable cabling. You can connect one high-speed uplink to multiple lower-speed devices while avoiding the cost, heat, and management overhead of separate active adapters. Cisco build quality also matters when the cable is part of a production network path where consistency and compatibility are non-negotiable. Use it when you need a compact breakout option that keeps the rack organized and the network architecture efficient. Ideal For Break out a top-of-rack 40 GbE uplink to four 10 GbE access switches Connect a QSFP+ switch port to multiple SFP+ servers or appliances Support staged network migrations where 10 GbE endpoints remain in production Organize high-density rack cabling in aggregation and leaf-spine environments Why This Product 1 Passive copper design avoids powered conversion hardware 2 Breaks one QSFP+ port into four SFP+ connections 3 5 m reach suits adjacent-rack breakout runs 4 Cisco compatibility supports production network deployments