NVIDIA/Mellanox MCA7J65-N001 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, 1m (3ft)

With a fixed 1m (3ft) cable and OSFP (IHS/Finned Top) to 2x QSFP112, the MCA7J65-N001 compatible assembly simplifies 800G deployment. It is manufactured and tested by HT for NVIDIA/Mellanox equipment.

OEM Part Number: MCA7J65-N001HT Part Number: MCA7J65-N001

Product Highlights

• Compatible alternative to NVIDIA/Mellanox MCA7J65-N001
• 800G connectivity at 850Gbps (8x 106.25Gbps)
• Interface configuration: OSFP (IHS/Finned Top) to 2x QSFP112
• Fixed length and part number: 1m (3ft), MCA7J65-N001
• 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.

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 1m (3ft), MCA7J65-N001 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.

MCA7J65-N001 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 MCA7J65-N002 at 2m (7ft), adding 1m for a less direct routing path; selecting it unnecessarily would leave more cable to dress.

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.

Each MCA7J65-N001 compatible cable is powered up on a suitable test interface rather than checked only for continuity. We confirm the expected identification and observe electrical continuity, link stability and diagnostic readouts. Because operating systems can apply different qualification rules by hardware revision, the intended NVIDIA/Mellanox platform should be included with the order.

Quote HT part number MCA7J65-N001 with the required quantity. The 1m (3ft) length is fixed for this part number; if a different length is needed, select its corresponding page and OEM reference from the length list above. Standard HT labels and project-specific packaging are available.

Production inspection covers both physical condition and a live link check. Connector ends receive individual protection, and the completed assembly is packed without tight ties or sharp bends. For multi-length projects, cartons can be separated and labelled by OEM part number to simplify installation on site.

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.