Cisco QSFP-H40G-CU7M Compatible 40G QSFP+ Passive Copper Cable, 7m (23ft)

This 7m (23ft) DAC cable is built for Cisco equipment requiring the QSFP-H40G-CU7M interface. The 40Gbps link uses QSFP+ to QSFP+ and is supplied as one complete tested assembly.

OEM Part Number: QSFP-H40G-CU7MHT Part Number: QSFP-H40G-CU7M

Product Highlights

• Compatible alternative to Cisco QSFP-H40G-CU7M
• 40G connectivity at 40Gbps
• Interface configuration: QSFP+ to QSFP+
• Fixed length and part number: 7m (23ft), QSFP-H40G-CU7M
• Conductor specification: 26AWG
• Minimum bend radius: 47.5mm

This assembly uses 26AWG conductors, PVC (OFNR) jacket, minimum bend radius 47.5mm. These mechanical characteristics affect how the cable should be dressed behind the equipment. Avoid sharp edges, excessive ties and repeated tight bends close to the connector boots.

QSFP-H40G-CU7M is the longest of 7 verified length options in this family. Compared with QSFP-H40G-CU5M at 5m (16ft), it provides 2m of additional reach for a longer vertical drop, a wider rack or an adjacent-cabinet route. Confirm that the complete path requires this length, because unused slack still needs supported, bend-safe storage.

The intended application is determined by the host interface and protocol support. Listed interface and protocol references include SFF-8436, QSFP+ MSA and IEEE 802.3ba. Confirm that the host firmware and port configuration support the same operating mode.

A passive DAC has no separate optical conversion stage. Its low-power, low-latency operation is useful for short equipment links, but the assembly must remain within the length and signaling mode accepted by both hosts.

The extended 7m (23ft) reach supports connections across adjacent racks or between separated equipment rows. Secure the cable along its route, protect both ends from pull loads and preserve ventilation. The integrated DAC construction avoids a chain of separate modules and patch leads.

The HT cable carries the compatibility configuration associated with QSFP-H40G-CU7M, while its mechanical assembly remains the fixed 7m (23ft) version described here. Incoming inspection, connector examination and a live link test are completed before packing. Customers with unusually old or new Cisco software can request a pre-order check.

Use part number QSFP-H40G-CU7M for the 7m (23ft) assembly. For mixed-length projects, list each required part number and quantity separately so that every cable can be tested and packed according to its intended installation.

Quality control includes connector appearance, cable identification and functional verification. Packing materials are selected to keep the connector housings and cable boots from taking impact during transport, and the coil is not compressed into an undersized bundle. Volume orders can include customer-specific labels and packing documentation.

Stock items are generally dispatched within one to three working days after order confirmation. DHL, UPS, FedEx, TNT and EMS are available for international delivery; larger consolidated orders can move by air or sea freight. Customer courier accounts and nominated forwarders are accepted.