Dell AEC-Q56DD-400G-3M Compatible 400G QSFP-DD 8 x 50G PAM4 Active Electrical Cable, 3m (10ft)

The HT-manufactured AEC-Q56DD-400G-3M compatible cable provides 400G connectivity for Dell equipment. This 3m (10ft) version is an active electrical link with signal recovery designed for the stated data rate, with an exact part number and length that can be matched directly to the equipment requirement.

OEM Part Number: AEC-Q56DD-400G-3MHT Part Number: AEC-Q56DD-400G-3M

Product Highlights

• Compatible alternative to Dell AEC-Q56DD-400G-3M
• 400G connectivity at 400Gbps
• Interface configuration: QSFP-DD to QSFP-DD
• Fixed length and part number: 3m (10ft), AEC-Q56DD-400G-3M
• Cable construction: Active DAC (AEC)
• Conductor specification: 32AWG
• Maximum power consumption: 10W Per End
• Minimum bend radius: 26.5mm

The listed modulation format is 8x 50G-PAM4. Both host interfaces must be configured for the same aggregate rate and lane arrangement. A connector that fits mechanically does not by itself guarantee that the remote port supports this encoding or breakout mode.

The rated power consumption is 10W Per End. 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.

This assembly uses 32AWG conductors, PET jacket, minimum bend radius 26.5mm. 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 QSFP-DD MSA, IEEE 802.3cd, CMIS 5.0. Confirm that the host firmware and port configuration support the same operating mode.

At 3m (10ft), this assembly can bridge non-aligned ports or adjacent racks while remaining a single direct-attach link. Support longer horizontal runs with suitable cable management and preserve space for cooling and future maintenance.

AEC-Q56DD-400G-3M occupies the middle of this family between AEC-Q56DD-400G-2M at 2m (7ft) and AEC-Q56DD-400G-5M at 5m (16ft). It adds 1m over the shorter option for extra routing clearance, while the next longer version adds another 2m. Measure the managed path and choose this version when its reach is sufficient without creating the slack associated with the longer assembly.

The assembly is configured for equipment that recognizes AEC-Q56DD-400G-3M. Before shipment, we inspect both connectors and verify identification, link establishment and electrical continuity, link stability and diagnostic readouts. Host hardware and firmware revisions can affect third-party cable acceptance, so customers can provide the equipment model and software release for a pre-order compatibility review.

When ordering, specify AEC-Q56DD-400G-3M, cable length 3m (10ft) 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.

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.