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- Description
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The QSFP-H40G-CU5M is a Cisco 40GBASE-CR4 QSFP direct-attach copper cable, 5 meters long and passive. The spare number QSFP-H40G-CU5M= belongs to the same cable. It joins two 40 Gigabit QSFP ports of Cisco switches within a rack or across adjacent racks, and it is the longest of the passive lengths, which run 0.5, 1, 2, 3, 4 and 5 meters; the active versions are 7 and 10 meters.
The QSFP connector is hot-swappable into a 40 Gigabit Ethernet Cisco QSFP port. Its electrical interface is compliant to IEEE 802.3ba, and the form factor, two-wire I2C interface and low-speed signals follow SFF 8436 and the QSFP multisource agreement. Cisco QSFP modules and cables are tested on Cisco QSFP 40G ports and exceed the IEEE specification, with a link bit error rate better than 1E-15.
Cable details are 26 AWG with a PVC jacket in black, a 9 mm diameter at the QSFP end, a 50 mm bend radius and 100 mm of face plate distance, with a gray pull tab. The QSFP connector body is at most 13.5 x 18.4 x 72.4 mm and weighs 100 grams or less.
Switch and router support is checked in the Cisco Optics-to-Device Compatibility Matrix. For the 10-meter active cable in the same family, see the QSFP-H40G-ACU10M.
Related part: QSFP-H40G-CU3M Cisco 40GBASE-CR4 QSFP Passive Copper Cable, 3 m
Related: Cisco Nexus 5000 and 5500 parts
| Designation | QSFP-H40G-CU5M (spare QSFP-H40G-CU5M=) |
| Type | 40GBASE-CR4 QSFP to QSFP direct-attach copper cable |
| Length | 5 m |
| Cable type | passive |
| Standard | IEEE 802.3ba, SFF 8436 |
| Wire gauge | 26 AWG |
| Jacket | PVC, black |
| Bend radius | 50 mm |
| Pull tab color | gray |
| Link BER | better than 1E-15 |