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NVIDIA MCA4J80-N005 800Gb/s Twin-port OSFP to 2x400Gb/s OSFP InfiniBand Active Copper Cable (ACC)
Dettagli:
| Marca: | Mellanox |
| Numero di modello: | MCA4J80-N005 (980-9i602-00N005) |
| Documento: | MCA4J80-Nxxx.pdf |
Termini di pagamento e spedizione:
| Quantità di ordine minimo: | 1 pz |
|---|---|
| Prezzo: | Negotiate |
| Imballaggi particolari: | Scatola esterna |
| Tempi di consegna: | Basato sull'inventario |
| Termini di pagamento: | T/T |
| Capacità di alimentazione: | Fornitura per progetto/batch |
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Informazioni dettagliate |
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| Disponibilità: | Azione | Garanzia: | 1 anno |
|---|---|---|---|
| Condizione: | Nuovo e originale | Tecnologia: | Infiniband |
| Tipo: | Cavo DAC Mellanox | Lunghezza del cavo: | 5 metri |
| Nome: | Cavo DAC Mellanox Cavo in rame attivo IB Porta gemella NDR 800GB/S OSFP 5 metri MCA4J80-N005 | Parola chiave: | Cavo DAC Mellanox |
Descrizione di prodotto
NVIDIA MCA4J80-N005 800Gb/s Twin-port OSFP to 2x400Gb/s OSFP InfiniBand Active Copper Cable (ACC)
High-density NDR interconnect | 5-meter reach | Ultra-low latency | 1.5W per end
The NVIDIA MCA4J80-N005 is a 800Gb/s twin‑port OSFP Active Copper Cable designed for InfiniBand NDR and Ethernet environments. Leveraging 8 channels of 100G-PAM4 modulation, it delivers 2x400Gb/s aggregate bandwidth, ideal for switch-to-switch and switch-to-DGX H100 connections. With 26AWG conductors and optimized equalization, this 5m ACC bridges the gap between passive DACs and optical solutions – providing low power, low cost, and robust signal integrity for demanding data centers.
Product Overview
The NVIDIA MCA4J80 series delivers 800Gb/s twin-port OSFP Active Copper Cables for next‑generation NDR InfiniBand and Spectrum‑4 Ethernet fabrics. The MCA4J80-N005 (5‑meter variant) utilizes thicker 26AWG copper pairs with integrated pre‑emphasis equalizer ICs at both ends, enabling reliable transmission beyond passive DAC limits while preserving extremely low latency and power consumption of only 1.5W per connector. Each cable is factory‑tuned to reduce signal noise and back reflections, and the EEPROM provides full product identification and diagnostic data to the host system. For shorter reaches (<3m), NVIDIA offers passive DAC alternatives; the ACC series optimizes performance for 3m, 4m, and 5m links.
Key Features
- 800Gb/s aggregate bandwidth – twin-port OSFP to 2x400Gb/s OSFP, 8 lanes @ 100G-PAM4 per port.
- 5-meter reach (26AWG) – ideal for top-of-rack and adjacent rack connectivity.
- Ultra-low power – maximum 1.5 Watts per end, significantly lower than active optical cables.
- Hot‑pluggable & RoHS compliant – LSZH jacket, halogen‑free, lead‑free.
- Protocol‑agnostic operation – automatically configures for InfiniBand or Ethernet depending on attached switch.
- Robust signal integrity – integrated equalizer and per‑length tuning reduce reflections and ISI.
- I²C management interface – based on SFF‑8636, provides real‑time cable status and identification.
- Operating temperature 0°C to +70°C – suitable for enterprise and cloud data center environments.
Technology & Design
The MCA4J80-N005 belongs to NVIDIA’s Active Copper Cable (ACC) family – a hybrid design that combines passive copper cabling with active equalization circuitry. Unlike passive DACs, ACC integrates a pre‑emphasis equalizer IC in each connector housing, which compensates for high‑frequency losses inherent to copper at longer lengths. This enables distances up to 5m while maintaining bit error rates compliant with InfiniBand NDR specifications. The 100G-PAM4 modulation per lane maximizes spectral efficiency, and the twin-port OSFP form factor offers breakout capability: a single 800Gb/s port interfaces to two independent 400Gb/s ports, simplifying connections to Quantum‑2 switches or DGX H100 systems. NVIDIA’s rigorous cable testing ensures out‑of‑the‑box durability, low insertion loss, and excellent crosstalk isolation.
Typical Deployments
- Quantum‑2 InfiniBand switch to Quantum‑2 switch – building non‑blocking NDR fabrics up to 5m between leaf/spine nodes.
- Quantum‑2 switch to DGX H100 / HGX H100 systems – direct attach for GPU clusters requiring high‑throughput and low latency.
- Spectrum‑4 Ethernet switch to switch or server uplinks – 800Gb/s Ethernet deployments for AI/ML backend networks.
- High‑performance computing (HPC) and storage disaggregation – reliable point‑to‑point connections inside racks.
Compatibility
The MCA4J80-N005 ACC is fully compatible with NVIDIA Quantum‑2 InfiniBand switches, Spectrum‑4 Ethernet switches, and DGX H100 server platforms. It also operates with any standard OSFP cage that supports 800G NDR or 2x400G breakout modes, following OSFP MSA Rev. 1.12 and SFF‑8636 management interface. The cable automatically detects the link protocol (InfiniBand vs Ethernet) based on the switch side, requiring no manual configuration. For legacy 400G or 200G environments, contact your NVIDIA representative for adapter or passive DAC options.
Compatibility Matrix
| Platform / Switch Family | Port Type | Supported Speed | Qualified Length |
|---|---|---|---|
| NVIDIA Quantum‑2 QM9700 / QM9790 | OSFP 800G NDR | 800Gb/s (2x400G breakout) | 5m |
| NVIDIA Spectrum‑4 SN5600 / SN5700 | OSFP 800G Ethernet | 800Gb/s | 5m |
| NVIDIA DGX H100 (8‑GPU) | OSFP 400G (dual‑port) | 2x400Gb/s per cable | 3m (flat/finned) & 5m |
| Third‑party 800G switches (OSFP MSA) | OSFP | 800G / 2x400G | Consult validation |
Technical Specifications
| Parameter | Specification (MCA4J80-N005) |
|---|---|
| Product Name | NVIDIA Active Copper Cable, InfiniBand twin port NDR, up to 800Gb/s, OSFP, 5m |
| Ordering PN | MCA4J80-N005 |
| Data Rate | 800Gb/s (8 lanes @ 100G-PAM4 per port; total 2x400Gb/s) |
| Connector Type | Twin-port OSFP to 2x OSFP (active copper) |
| Cable Length | 5 meters (±50 mm tolerance for length ≥2m) |
| Wire Gauge | 26 AWG, 2x8 pairs |
| Outer Diameter | 8.9 ±0.03 mm |
| Minimum Bend Radius (Single) | 5x cable diameter (~44.5 mm) |
| Minimum Bend Radius (Repeated) | 10x cable diameter (~89 mm) |
| Power Supply Voltage | 3.135V – 3.465V (3.3V nominal) |
| Max Power per End | 1.5 W |
| Operating Case Temperature | 0°C to +70°C |
| Storage Temperature | -40°C to +85°C |
| Relative Humidity (Operating) | 5% to 85% (non-condensing) |
| Characteristic Impedance | 100 Ω nominal (90-110 Ω range) |
| Regulatory Compliance | RoHS, REACH, CE, FCC Class A, UKCA, VCCI, RCM, TUV, CB |
| Jacket Material | LSZH (Low Smoke Zero Halogen) |
| Hot Pluggable | Yes, OSFP MSA compliant |
Selection Guide – MCA4J80 Series
| Ordering PN | Length | AWG | Description / Special Feature |
|---|---|---|---|
| MCA4J80-N003 | 3m | 30 AWG | Standard flat cable, 800Gb/s ACC |
| MCA4J80-N004 | 4m | 30 AWG | Extended reach, 30AWG construction |
| MCA4J80-N005 | 5m | 26 AWG | Thicker gauge for 5m, optimized for switch-to-switch |
| MCA4J80-N003-FLT | 3m | 30 AWG | Flat top variant for DGX H100 clearance |
| MCA4J80-N003-FTF | 3m | 30 AWG | Flat to finned, special mechanical form factor |
Advantages Over Passive DAC & Active Optical Cables
- Cost‑effective: Lower cost than active optical cables (AOC) while providing longer reach than passive DAC.
- Minimal latency: Sub‑microsecond latency due to analog equalization, no protocol retiming.
- Power efficiency: 1.5W per end vs 3-5W typical for optical modules.
- Reliability: No optical contamination issues, robust in high‑vibration environments.
- Deployment simplicity: Standard copper handling, no cleaning or polarity concerns.
Service & Support
Hong Kong Starsurge Group Co., Limited provides full supply chain and technical support for NVIDIA networking solutions. Our team assists with configuration validation, compatibility checks, and after‑sales RMA services. Contact our network hardware specialists for volume pricing, cable length recommendations, and integration with existing InfiniBand/Ethernet fabrics. We offer global delivery with rapid dispatch from regional warehouses.
Frequently Asked Questions (FAQ)
- Q: Is the MCA4J80-N005 compatible with standard 400G QSFP ports?
A: No, it uses OSFP connectors. For 400G QSFP ports, consider QSFP112 or OSFP‑to‑QSFP adapters; this cable is designed for native OSFP cages supporting 800G or 2x400G breakout. - Q: What is the difference between ACC and DAC?
A: Passive DAC has no active electronics; ACC integrates equalizer ICs to extend length to 5m while maintaining signal integrity and ultra‑low latency. - Q: Does the cable support Ethernet as well as InfiniBand?
A: Yes. The ACC firmware detects the link protocol automatically – works with both InfiniBand NDR and Ethernet (up to 800GbE). - Q: Can I use this cable for switch-to-server beyond 5m?
A: Maximum rated length is 5m; for longer distances, active optical cables (AOC) or optical transceivers are required. - Q: Are there specific bend radius restrictions near the connector?
A: Yes, assembly bending radius (close to connector) is 10x cable diameter. Follow NVIDIA cable management guidelines to avoid performance degradation.
Handling Precautions & ESD Guidelines
- Always use ESD‑grounded wrist straps when handling cables and inserting into OSFP cages.
- Do not exceed minimum bend radius (single: 5x diameter; repeated: 10x diameter) to prevent conductor damage.
- Protective dust caps should remain in place until installation to prevent contamination.
- Do not pull or apply excessive tension to the cable jacket; use appropriate cable management brackets.
- Operate within specified case temperature (0°C to +70°C) to ensure reliable equalizer performance.
Buyer Checklist – MCA4J80-N005
- ✓ Confirm switch port type: OSFP 800G NDR or 2x400G breakout capability.
- ✓ Verify required cable length: 5m maximum for this ACC variant.
- ✓ Check operating environment temperature range (0-70°C case temperature).
- ✓ Ensure adequate bend radius space in racks (≥45mm single bend).
- ✓ For DGX H100 connections, verify if flat top variant (MCA4J80-N003-FLT) is required for 3m; for 5m, standard N005 is compatible with proper routing.
Related Products
Related Guides & Resources
- NVIDIA Cable Management Guidelines for OSFP/QSFP (PDF)
- InfiniBand NDR Fabric Design Best Practices
- Understanding Active Copper vs. Active Optical Cables
- DGX H100 Networking Guide
About Hong Kong Starsurge Group Co., Limited
Founded in 2008, Starsurge is a technology‑driven provider of network hardware, IT services, and system integration solutions. We serve global customers across government, healthcare, manufacturing, education, finance, and enterprise sectors. Our portfolio includes network switches, NICs, wireless access points, IoT solutions, custom software development, and high‑speed cabling (including NVIDIA InfiniBand and Ethernet products). With a customer‑first approach and multilingual support, Starsurge ensures reliable quality, responsive service, and tailored network infrastructure. Our experienced sales and technical team provides end‑to‑end support from design to global delivery.
Partner with us for NVIDIA original ACC cables, DACs, and switch solutions.