40G QSFP+ to 40G QSFP+ Direct Attach Passive Copper Cables

QSFP+ (Quad Small Form-factor Pluggable Plus) copper direct-attach cables are suitable for very short distances and offer a highly cost-effective way to establish a 40-Gigabit link between QSFP+ ports of QSFP+ switches within racks and across adjacent racks. These cables are used for 40GbE and Infniband standards, to maximize performance. QSFP+ are designed to meet emerging data center and high performance computing application needs for a high density cabling interconnect system capable of delivering an aggregate data bandwidth of 40Gb/s. This interconnect system is fully compliant with existing industry standard specifications such as the QSFP MSA and IBTA (InfiniBand Trade Association). The QSFP+ cables support the bandwidth transmission requirements as defined by IEEE 802.3ba (40 Gb/s) and Infiniband QDR ( 4×10 Gb/s per channel) specifications.

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  • Compliant QSFP MSA specifications
  • Fully compatible with IEEE802.3ba and Infiniband QDR specifications
  • 40Gb/s total bandwidth
  • 4 independent duplex channels operating at 10Gbps, also support for 2.5Gbps, 5Gbps data rates
  • 100 ohm differential impedance system
  • Single 3.3V power supply, low power consumption, <1.5W
  • Low Near-End Crosstalk(NEXT)
  • Operating case temperature: -40 to 85°C
  • All-metal housing for superior EMI performance
  • Precision process control for minimization of pair-to-pair skew
  • AC coupling of PECL signals
  • EEPROM for cable signature & system communications
  • 30 AWG to 24 AWG cable sizes available
  • RoHS compliant



Networked storage systems


External storage systems

Data Center networking

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