Cisco QSFP-4 x 10G-AC9M Compatible 40G QSFP+ to 4 x 10G SFP+ Active Copper Breakout Cable, 9m (29ft)

This HT cable matches the QSFP-4 x 10G-AC9M requirement for Cisco equipment. The 9m (29ft) assembly supports 40G operation and provides an actively conditioned copper link for the stated high-speed interface; its complete electrical and mechanical details are listed below.

OEM Part Number: QSFP-4 x 10G-AC9MHT Part Number: QSFP-4 x 10G-AC9M

Product Highlights

• Compatible alternative to Cisco QSFP-4 x 10G-AC9M
• 40G connectivity at 40Gbps
• Interface configuration: QSFP+ to SFP+
• Fixed length and part number: 9m (29ft), QSFP-4 x 10G-AC9M
• Cable construction: Active Twinax
• Conductor specification: 26AWG
• Maximum power consumption: ≤1.8W
• Minimum bend radius: 44.5mm

The rated power consumption is ≤1.8W. Include this load in the host-port power and thermal budget, especially in densely populated switches. Maintain front-panel clearance and do not bundle the cable so tightly that it obstructs airflow around the connectors.

The extended 9m (29ft) 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 ACC construction avoids a chain of separate modules and patch leads.

QSFP-4 x 10G-AC9M is the longest of 5 verified length options in this family. Compared with QSFP-4 x 10G-AC7M at 7m (23ft), 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.

This assembly uses 26AWG conductors, PVC (OFNR) jacket, minimum bend radius 44.5mm. 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.

The intended application is determined by the host interface and protocol support. Listed interface and protocol references include SFF-8431, SFF-8432, SFF-8472 SFP+ MSA, SFF-8436 QSFP+ MSA. Confirm that the host firmware and port configuration support the same operating mode.

The QSFP+ to SFP+ configuration divides the high-speed interface into multiple lower-speed connections. Verify the upstream lane assignment, downstream port speeds and breakout setting on the host before connecting the assembly. Each branch must attach to the correct remote interface.

Compatibility is more than matching the QSFP+ to SFP+ shape. This assembly is prepared for hosts expecting QSFP-4 x 10G-AC9M and is checked for identification, stable link behavior and electrical continuity, link stability and diagnostic readouts. We recommend confirming the equipment model and software release for critical deployments or mixed-vendor installations.

When ordering, specify QSFP-4 x 10G-AC9M, cable length 9m (29ft) and the host platform. This allows our team to verify both the physical assembly and the compatibility requirement before production. Neutral labeling and customer packing lists can be arranged for volume orders.

Every QSFP-4 x 10G-AC9M compatible assembly undergoes link testing, compatibility verification and visual inspection. The 9m (29ft) cable is coiled without exceeding its minimum bend radius, fitted with connector protection and packed in an anti-static bag or protective tray before cartoning. Project labels and packing lists are available for volume orders.

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.