The 40G Passive QSFP+ Twinaxial Direct Attach Cable is a high performance, high bandwidth & cost-effective connection solution that support 40G Gigabit Ethernet. The 40G Passive QSFP+ Twinaxial Direct Attach Cable is designed to support high-density connections for switches with 40G interface, much faster than SFP+. Better performance High speeds of up to 40 Gbps & lower latency result in faster transmissions than other types of cables. Cost-effective solution QSFP+ connector on cable replaces four standard SFP+ cable assemblies, ensuring higher port density & cost savings. Energy efficiency Lower power consumption & EMI emissions mean savings on energy usage & expenses, and less electronic interference.