Finisar QSFP (Quad Small Form-factor Pluggable) transceivers are the industry’s leading solution for high-density, high-bandwidth networking. By utilizing four independent transmit and receive channels, these modules deliver four times the data density of standard SFP interfaces, making them the primary choice for data center switching fabrics and core routing.
The Quad-Lane Performance Tiers
Finisar QSFP+ (40G): The foundation of high-speed aggregation, providing 40 Gigabit Ethernet or 4x10G breakout capabilities. These are widely used for switch-to-switch uplinks and high-bandwidth server connections.
Finisar QSFP28 (100G): The current gold standard for 100G networking.While it maintains the same physical footprint as the QSFP+, it increases the speed of each lane to 25Gbps to provide a massive 100 Gigabit Ethernet pipe.It is the preferred choice for hyperscale data centers and high-performance computing clusters.
Finisar QSFP56 (200G): The next step in the evolution, utilizing PAM4 signaling to achieve 200 Gigabit Ethernet throughput. This allows for significantly higher bandwidth without changing the existing rack density or port count.
