Choose 400G QSFP-DD Cisco compatible Transceivers for cost-efficient, high‑bandwidth interconnection applications
QSFP-DD Cisco compatibles is a new generation of 400G and 2x100G data rate products, which are a set of super high-density transceiver modules based on QSFP-DD (Quad Small Form Factor Pluggable Double Density). The QSFP-DD MSA group has defined 400G QSFP-DD as a high-density, high-speed pluggable module of the next generation that is backwards compatible with 100G QSFP28 and even 40G QSFP+. The current mainstream QSFP form factor and the QSFP-DD form factor are very similar to one another. However, the QSFP-DD form factor have an additional row of contacts provided for an eight-lane electrical interface that can operate in 50G PAM4 modulation mode resulting in 8x50G (400G) transmission capacity (400G Cisco compatibles) or can operate in 25G NRZ encoding mode resulting in 8x25G (200G) transmission capacity (2x100G Cisco Compatibles). Cisco 400G transceivers are still gaining market momentum, but have a great potential to become mainstream high-speed interfaces similar to 100G QSFP28 have become.
400G Cisco compatibles have one of the highest Ethernet data rates, providing enhanced capabilities for major aggregation and high bandwidth connectivity applications. These applications include hyperscale data centers, internet exchanges, colocation services, wireless infrastructure core, service provider and operator core networks, and video distribution infrastructure. Our QSFP-DD Cisco 400G compatible portfolio consists of transceivers which can operate over Single-Mode or Multi-Mode optical Fiber, can be used for connection distances from a couple of meters up to 10 kilometers and can support up to 425 Gbps data rate and 400G Ethernet application. Recently we have the ability to offer 400G-ER8 customized products for Cisco 400G QSFP-DD where connectivity up to 40 kilometers is required.
Although Cisco 400G QSFP-DD optical transceivers are more common, there are also 2x100G QSFP-DD Cisco compatible transceivers, which are technically two 100G transceivers in one housing. These Cisco QSFP-DD compatible transceivers can provide great flexibility for operators on their migration path towards 400G PAM4 infrastructure and enable necessary interconnections with legacy high density 100G QSFP28 interfaces that employ NRZ encoding. 2x100G Cisco QSFP-DD compatible transceivers utilize the QSDP-DD form factor, but have double CS connectors that are 40% smaller than LC duplex connectors while delivering an increased performance. The footprint of the CS connector permits double the port density. Our 2x100G QSFP-DD Cisco compatibles can support up to 206.25 Gbps data rate and 2x100G Ethernet applications over connection distances ranging from a few meters up to 10 kilometers and require special CS patch cables.