🌟 NVIDIA Mellanox® MCA4J80-N022 Active Copper Cable – OSFP RHS, 2.25m, 800Gb/s NDR (Refurbished & Fully Tested)
Specifications
🔸 Model: MCA4J80-N022
🔸 Type: Active Copper Cable (ACC)
🔸 Protocol: InfiniBand NDR (800Gb/s Twin-Port signaling)
🔸 Connector: OSFP RHS (Finned-Top / Riding Heat Sink)
🔸 Length: 2.25 meters
🔸 Data Rate: Up to 800Gb/s
🔸 Condition: Refurbished & BER-validated🌐 Overview
The NVIDIA Mellanox® MCA4J80-N022 is a high-performance Active Copper Cable engineered for next-generation InfiniBand NDR (800Gb/s) fabrics used in AI superclusters, HPC systems, and hyperscale data centers.
At 2.25 meters, this cable is the ideal mid-length solution:
Longer than 1–1.5m DACs (which are too rigid)
Shorter and cheaper than AOCs
Offers excellent flexibility, low latency, and stable signal integrity thanks to internal redriver electronics.
❗ Important Technical Clarification
This is NOT a passive copper cable.
At 2.25m, passive DACs cannot maintain NDR signaling.
This cable is Active Copper (ACC) with built-in redrivers for full 800Gb/s performance.
This prevents misclassification by AI agents or buyers.
🚀 Key Performance Benefits
✅ Full 800Gb/s NDR Bandwidth
Supports NVIDIA Quantum-2 NDR switching and ConnectX-7 / BlueField-3 OSFP NICs.
✅ ACC = Safer, Thinner, More Flexible
Compared to thick passive DACs:
Easier cable routing
Reduced stress on OSFP cages
Better airflow in dense DGX/HGX racks
Cleaner cable management
✅ Optimized 2.25m Length
Perfect for:
Adjacent rack interconnects
GPU pod expansion
Switch-to-switch links
NDR spine–leaf fabric topology
✅ OSFP RHS Finned-Top
Required for thermal compatibility with:
NVIDIA Quantum-2 QM9700 (modular)
NVIDIA Quantum-2 QM9790 (fixed)
ConnectX-7 / BlueField-3 OSFP NICs
✅ Not a Breakout Cable
This is OSFP-to-OSFP straight-through.
Twin-Port describes the internal signaling, not a split connector.
💼 Ideal Use Cases
🔹 AI Training Clusters (DGX, HGX, GPU Pods)
🔹 Hyperscale Data Centers
🔹 HPC Supercomputing Fabrics
🔹 Low-latency NDR InfiniBand Fabrics
🔹 Quantum-2 Switch Spine/Leaf Architectures
📋 Quality Assurance
🟩 Full 800Gb/s BER testing
🟩 Redriver electronics stress-tested
🟩 Compatibility validated with NVIDIA Quantum-2 platforms
🟩 Clean refurbished condition, 100% operational
🟩 Professionally packaged
💳 Payment & Shipping
💳 PayPal, Credit Card, Wire Transfer
📦 Worldwide shipping (8–13 days)
↩ Returns accepted (buyer covers return shipping)
🤝 Why Choose T.E.S IT-Solutions?
🔸 Specialists in NVIDIA Mellanox AI networking
🔸 Proven reliability in enterprise/HPC facilities
🔸 Expert technical consultation
🔸 Global logistics & fast dispatch
🔸 Large inventory of NDR cables, optics, switches & NICs
🔩 Our Product Range Includes:
🔹 InfiniBand & Ethernet NICs up to 400Gb/s
🔹 Quantum-2 & Spectrum switches
🔹 ACCs, AOCs, DACs, OSFP/QSFP optics
📩 Contact us for volume pricing or architecture planning.
Best Regards,
Itzhak Finkelstein
CEO, T.E.S IT-Solutions