Linkbasic's SFP-DQB4 is a high-performance copper breakout cable designed to bridge high-density hardware configurations. Delivering an aggregate bandwidth of up to 40 Gbps, it efficiently splits a single 40G port into four separate, high-speed 10 Gbps data channels. This Direct Attach Copper (DAC) breakout solution provides an energy-efficient, low-latency alternative to optical transceivers for short-distance interconnections within server racks. Application Note: Perfect for connecting 40G switches or network interface cards (NICs) to standard 10G upstream or downstream equipment.