Passive twinax 40G QSFP + cable is an economical solution that supports 40 Gbit / s, to provide a connection with high bandwidth. Passive twinax 40G QSFP + cable is designed to interconnect switches with 40G interface, while providing higher data rates than with standard SFP +. This series consists of two models of cables: DEM-CB300QXS (3 meters) and DEM- CB100QXS-4XS connector QSFP + connectors and four SFP + (1 meter). Cable DEM-CB100QXS-4XS allows up to four servers with 10G ports. Passive twinax 40G QSFP + cable certified and compatible with D-Link products for optimal performance and reliability.