🌟 NVIDIA Mellanox® MCA4J80-N018 Active Copper Cable (ACC) – 800Gb/s InfiniBand NDR, OSFP RHS, 1.8m
Specifications
🔸 Model: MCA4J80-N018
🔸 Type: Active Copper Cable (ACC)
🔸 Protocol: InfiniBand NDR (800Gb/s Twin-Port signaling)
🔸 Connector: OSFP RHS (Riding Heat Sink / Finned-Top)
🔸 Length: 1.8 meters
🔸 Data Rate: Up to 800Gb/s
🔸 Condition: Refurbished & BER-validated🌐 Overview
The NVIDIA Mellanox® MCA4J80-N018 is a short-reach 800Gb/s InfiniBand NDR Active Copper Cable designed for Quantum-2 fabrics, DGX/HGX GPU racks, and dense HPC deployments that require both high bandwidth and clean cable routing.
At 1.8m, this ACC provides an ideal mid-length option—longer than 1m DACs (which are too rigid) yet shorter than expensive optics—offering excellent signal integrity, flexibility, and airflow in modern AI infrastructures.
🚀 Why Engineers Choose This Cable
✅ 800Gb/s NDR Performance
Delivers full-bandwidth NDR speed using OSFP Twin-Port signaling—ideal for GPU clusters and low-latency fabrics.
✅ Active Copper = More Flexible, Safer for Ports
Compared to passive 1–2m DACs (very stiff, thick), this ACC uses thinner wire with internal redrivers:
Easier to bend and route
Reduces strain on OSFP cages and switch ports
Improves rack airflow
Much cleaner cable dressing
This is the main purchasing reason for mid-length NDR cables.
✅ Perfect 1.8m Reach for Rack-to-Rack
Recommended for:
Adjacent Quantum-2 switches
GPU fabric interconnects
Top-of-rack (TOR) to mid-rack runs
Situations where 1m is too short, 3–4m is too long
✅ Not a Breakout Cable
This is OSFP to OSFP straight-through, NOT a splitter.
Twin-Port describes the internal signaling, not the connector type.
✅ OSFP RHS Finned-Top Compatible
Required for high-thermal OSFP cages on NDR equipment.
💼 Ideal For
🔹 NVIDIA Quantum-2 IB fabrics (QM9700, QM9790)
🔹 DGX/HGX multi-GPU clusters
🔹 Hyperscale data center fabrics
🔹 HPC workloads
🔹 AI training + inference pipelines
🔹 Low-latency NDR spine-leaf architectures
📋 Quality Assurance
🟩 Refurbished with full 800Gb/s BER testing
🟩 Redriver electronics stress-tested
🟩 Thermal validation for OSFP RHS
🟩 Verified compatibility with Mellanox/NVIDIA NDR systems
🟩 Professionally packed and handled
💳 Payment & Shipping
💳 PayPal, Credit Cards, Wire Transfer
📦 Worldwide shipping (8–13 business days)
↩ Returns accepted (buyer pays return shipping)
🤝 Why Buy from T.E.S IT-Solutions?
🔸 Specialized in Mellanox/NVIDIA AI networking
🔸 Large inventory of NDR cables, optics, switches & NICs
🔸 Expert compatibility support
🔸 Fast global logistics
🔸 Trusted by enterprise + HPC clients worldwide
🔩 Explore Our Product Range
🔹 InfiniBand & Ethernet NICs up to 400Gb/s
🔹 Quantum & Spectrum switches
🔹 DACs, ACCs, AOCs, MPO/OSFP/QSFP optics
📩 Contact us for volume pricing, architecture planning, or compatibility assistance.
Best Regards,
Itzhak Finkelstein
CEO, T.E.S IT-Solutions