NVIDIA/Mellanox MCA4J80-N003 Compatible 800G Twin-port OSFP 8 x 100G PAM4 IHS/Finned Top Ethernet Active Copper Twinax Cable, 3m (10ft)

This HT cable matches the MCA4J80-N003 requirement for NVIDIA/Mellanox equipment. The 3m (10ft) assembly supports 800G 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: MCA4J80-N003HT Part Number: MCA4J80-N003

Product Highlights

• Compatible alternative to NVIDIA/Mellanox MCA4J80-N003
• 800G connectivity at 850Gbps (8x 106.25Gbps)
• Interface configuration: OSFP (IHS/Finned Top) to OSFP (IHS/Finned Top)
• Fixed length and part number: 3m (10ft), MCA4J80-N003
• Cable construction: Active DAC (ACC)
• Conductor specification: 30AWG
• Maximum power consumption: 1.3W Per End
• Minimum bend radius: 48.5mm

The listed modulation format is 8x100G-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.

MCA4J80-N003 is the longest of 2 verified length options in this family. Compared with MCA4J80-N001 at 1m (3ft), 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.

The rated power consumption is 1.3W 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 48.5mm. 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 Ethernet. Listed interface and protocol references include CMIS 5.0, IEEE 802.3ck, OSFP Rev5.0. 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.

Compatibility is more than matching the OSFP (IHS/Finned Top) to OSFP (IHS/Finned Top) shape. This assembly is prepared for hosts expecting MCA4J80-N003 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 MCA4J80-N003, 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.

Before packing, our team checks the cable jacket, connector boots, latches and identification of each assembly. The cable is then secured in a loose coil and protected against dust and connector impact. Neutral packaging, customer part-number labels and project-specific carton lists can be supplied on request.

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.