NVIDIA/Mellanox MCA7J65-N003 Compatible 800G Twin-port OSFP 8 x 100G PAM4 IHS/Finned Top to 2 x 400G QSFP112 4 x 100G PAM4 InfiniBand NDR Active Copper Breakout Cable, 3m (10ft)

For short, high-density connections, this ACC cable combines 800G performance with a fixed 3m (10ft) cable run. It corresponds to NVIDIA/Mellanox MCA7J65-N003 and uses an actively conditioned copper link for the stated high-speed interface.

OEM Part Number: MCA7J65-N003HT Part Number: MCA7J65-N003

Product Highlights

• Compatible alternative to NVIDIA/Mellanox MCA7J65-N003
• 800G connectivity at 850Gbps (8x 106.25Gbps)
• Interface configuration: OSFP (IHS/Finned Top) to 2x QSFP112
• Fixed length and part number: 3m (10ft), MCA7J65-N003
• Cable construction: Active Breakout DAC (ACC)
• Conductor specification: 30AWG
• Maximum power consumption: 1.5W (OSFP End)0.6W (QSFP112 Per End)
• Minimum bend radius: 32.5mm

The listed modulation format is 8x100G-PAM4 to Dual 4x100G-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 1.5W (OSFP End)0.6W (QSFP112 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 30AWG conductors, PET jacket, minimum bend radius 32.5mm. 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 800G/400G InfiniBand. Listed interface and protocol references include CMIS 5.0, IEEE 802.3ck, OSFP MSA Rev5.0, Q112 MSA. Confirm that the host firmware and port configuration support the same operating mode.

The OSFP (IHS/Finned Top) to 2x QSFP112 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 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.

MCA7J65-N003 occupies the middle of this family between MCA7J65-N002 at 2m (7ft) and MCA7J65-N005 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 HT cable carries the compatibility configuration associated with MCA7J65-N003, while its mechanical assembly remains the fixed 3m (10ft) version described here. Incoming inspection, connector examination and a live link test are completed before packing. Customers with unusually old or new NVIDIA/Mellanox software can request a pre-order check.

This product is ordered as MCA7J65-N003 in 3m (10ft). 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.