QSFP-DD to 2x QSFP56-400G-ACC-1M3FT 400G QSFP-DD 8 x 50G PAM4 to 2 x 200G QSFP56 4 x 50G PAM4 Active Copper Breakout Cable, 1m (3ft)

Designed for hosts that recognize QSFP-DD to 2x QSFP56-400G-ACC-1M3FT, this QSFP-DD to 2x QSFP56 cable delivers 400G transmission over a fixed 1m (3ft) assembly. Its ACC construction provides an actively conditioned copper link for the stated high-speed interface.

OEM Part Number: QSFP-DD to 2x QSFP56-400G-ACC-1M3FTHT Part Number: QSFP-DD to 2x QSFP56-400G-ACC-1M3FT

Product Highlights

• HT-manufactured ACC assembly in 1m (3ft)
• 400G connectivity at 400Gbps
• Interface configuration: QSFP-DD to 2x QSFP56
• Fixed length and part number: 1m (3ft), QSFP-DD to 2x QSFP56-400G-ACC-1M3FT
• Cable construction: Active
• Conductor specification: 30AWG
• Maximum power consumption: 1.45W（QSFP-DD End） 0.62W（QSFP56 Per End）
• Minimum bend radius: 70mm

The rated power consumption is 1.45W（QSFP-DD End） 0.62W（QSFP56 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.

The QSFP-DD to 2x QSFP56 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.

At 1m (3ft), QSFP-DD to 2x QSFP56-400G-ACC-1M3FT is a practical choice for direct connections within one rack. Route the cable along the intended management path rather than pulling it diagonally across adjacent connectors, and leave enough clearance for insertion, removal and front-panel airflow.

QSFP-DD to 2x QSFP56-400G-ACC-1M3FT is the shortest of 4 verified length options in this family. It is the preferred choice when the port positions are close and cable slack must be kept to a minimum. The next option is QSFP-DD to 2x QSFP56-400G-ACC-2M7FT at 2m (7ft), adding 1m for a less direct routing path; selecting it unnecessarily would leave more cable to dress.

This assembly uses 30AWG conductors, PVC jacket, minimum bend radius 70mm. 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, SFF-8636, SFF-8679. Confirm that the host firmware and port configuration support the same operating mode.

Compatibility is more than matching the QSFP-DD to 2x QSFP56 shape. This assembly is prepared for hosts expecting QSFP-DD to 2x QSFP56-400G-ACC-1M3FT 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.

This product is ordered as QSFP-DD to 2x QSFP56-400G-ACC-1M3FT in 1m (3ft). Include the equipment model and software release if you would like a pre-order compatibility review. Other lengths use different part numbers and should not be substituted into the same order line.

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.

Lead time for ordinary configurations is normally one to three working days, while production quantities are confirmed with the order. We can arrange express courier or economy freight according to destination and carton volume, or hand the shipment to your appointed logistics provider.