Cisco QSFP+ to 4x SFP+ Passive Direct Attach Copper (DAC) Breakout Cable. 1-Meter (1M) Length. P/N: QSFP-4SFP10G-CU1M.

This is a Cisco QSFP+ to 4x SFP+ Passive Direct Attach Copper (DAC) Breakout Cable, measuring 1-Meter (1M) in length (P/N: QSFP-4SFP10G-CU1M, 37-1319-01). This high-performance cable is designed for connecting a 40 Gigabit Ethernet (40GbE) QSFP+ port on a switch, router, or server to four separate 10 Gigabit Ethernet (10GbE) SFP+ ports on other networking devices.

As a passive DAC cable, it offers a cost-effective, low-power, and low-latency solution for short-distance high-speed interconnects within a server rack or between adjacent racks. It is ideal for breaking out a single 40GbE port into four individual 10GbE links, allowing for increased density and flexible connectivity. This Cisco original cable ensures optimal compatibility and reliable performance when used with Cisco networking equipment, facilitating efficient and high-bandwidth data transfer in data centers and enterprise networks.

Key Features 

• QSFP+ to 4x SFP+ Breakout: Connects a single 40GbE QSFP+ port to four 10GbE SFP+ ports.

• Passive DAC Cable: Cost-effective, low-power, and low-latency solution for short-reach connections.

• 1-Meter (1M) Length: Ideal for intra-rack or adjacent-rack connectivity.

• High-Speed Connectivity: Supports 40 Gigabit Ethernet on one end and four 10 Gigabit Ethernet links on the other.

• Genuine Cisco Part: Ensures optimal compatibility, reliability, and performance with Cisco networking equipment.

• Increased Port Density: Maximizes port utilization by breaking out higher-speed ports into multiple lower-speed ports.

• EMI Shielding: Designed to minimize electromagnetic interference for stable signal integrity.

• Hot-Pluggable: Allows for installation and removal without powering down connected devices.