Cisco QSFP-40G-SR4 Data Sheet
© 2012 Cisco and/or its affiliates. All rights reserved. This document is Cisco Public Information.
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Figure 3. Cisco QSFP+ to Four SFP+ Copper Breakout Cables
Cisco QSFP+ to QSFP+ Copper Direct-Attach Cables
Cisco QSFP+ to QSFP+ copper direct-attach 40GBASE-CR4 cables (Figure 4) are suitable for very short
distances and offer a highly cost-effective way to establish a 40-Gigabit link between QSFP+ ports of Cisco
switches within racks and across adjacent racks. Cisco currently offers passive cables in lengths of 1, 3 and 5
meters, and active cables in lengths of 7 and 10 meters.
Figure 4. Cisco 40GBASE-CR4 QSFP+ Direct-Attach Copper Cables
Technical Specifications
Platform Support
Cisco QSFP+ modules are supported on Cisco switches and routers. For more details, refer to the document
“
Cisco 40 Gigabit Ethernet Transceiver Modules Compatibility Matrix
”.
Connectors and Cabling
Connectors: MPO/MTP ribbon connector (-SR4, -CSR4), Duplex LC connector (-LR4)
Note:
Only connections with patch cords with PC or UPC connectors are supported. Patch cords with APC
connectors are not supported. All cables and cable assemblies used must be compliant with the standards
specified in the standards section.