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NVIDIA MCA4J80-N005 800Gb/s OSFP Active Copper Cable – 5m Twin-Port ACC for InfiniBand NDR
Product Details:
| Brand Name: | Mellanox |
| Model Number: | MCA4J80-N005(980-9I602-00N005) |
| Document: | MCA4J80-Nxxx.pdf |
Payment & Shipping Terms:
| Minimum Order Quantity: | 1pcs |
|---|---|
| Price: | Negotiate |
| Packaging Details: | outer box |
| Delivery Time: | Based on inventory |
| Payment Terms: | T/T |
| Supply Ability: | Supply by project/batch |
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Detail Information |
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| Availability: | Stock | Warranty: | 1 Year |
|---|---|---|---|
| Condition: | New And Original | Technology: | InfiniBand |
| Type: | Mellanox DAC Cable | Cable Length: | 5 Meters |
| Name: | Mellanox DAC Cable Active Copper Cable IB Twin Port NDR 800Gb/s OSFP 5 Meters MCA4J80-N005 | Keyword: | Mellanox DAC Cable |
| Highlight: | NVIDIA OSFP Active Copper Cable,800Gb/s InfiniBand NDR cable,5m Twin-Port ACC cable |
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Product Description
NVIDIA MCA4J80-N005 800Gb/s OSFP Active Copper Cable
The NVIDIA MCA4J80-N005 is a 5-meter active copper cable (ACC) featuring a twin-port OSFP connector on one end and a 2x400Gb/s twin-port OSFP connector on the other. Designed for NVIDIA Quantum-2 InfiniBand and Spectrum-4 Ethernet switches, this ACC integrates pre-emphasis equalizer ICs to extend reach up to 5 meters while maintaining ultra-low latency and just 1.5W power per end.
800 Gb/s
Aggregate bandwidth
2x400G
Full duplex
1.5W
Power per end
5m
Maximum length
Product Overview
The NVIDIA MCA4J80 series represents a new class of active copper cables (ACC) that bridge the gap between passive DACs and optical solutions. The MCA4J80-N005 uses integrated equalizer ICs at each end to compensate for signal degradation over longer copper runs, enabling 800Gb/s aggregate bandwidth at distances up to 5 meters with latency nearly as low as passive DACs.
Key Features
- 800Gb/s aggregate data rate – Twin-port OSFP to 2x400Gb/s OSFP configuration
- Active Copper Cable (ACC) – Integrated pre-emphasis equalizer ICs extend reach to 5 meters
- Ultra-low latency – Significantly lower than AOCs, nearly matching passive DAC performance
- Low power consumption – Just 1.5W maximum per end
- 5 meter length – 26AWG wire gauge, 8.9mm cable diameter
- Operating case temperature – 0°C to 70°C; storage -40°C to 85°C
- LSZH (Low Smoke Zero Halogen) jacket – RoHS compliant, Lead-free, Halogen-free PCB
- Hot-pluggable OSFP connectors – Finned top standard; flat top and flat-to-finned variants available
- Automatic protocol detection – Supports InfiniBand NDR and Ethernet 800GbE
- SFF-8636 compliant I²C management interface – EEPROM for product identification and configuration
Technical Specifications
| Parameter | Specification (MCA4J80-N005) |
|---|---|
| Product Model | MCA4J80-N005 |
| Cable Type | Active Copper Cable (ACC) with equalizer ICs |
| Data Rate | 800Gb/s aggregate (2x400Gb/s) |
| Form Factor | OSFP to OSFP (twin-port to twin-port) |
| Length | 5 meters (±50mm tolerance for length ≥2m) |
| Wire Gauge | 26AWG (2x8 pairs) |
| Cable Diameter | 8.9 ±0.03 mm |
| Modulation | 8 lanes of 100G-PAM4 per port |
| Supply Voltage (Vcc) | 3.135V – 3.465V (typical 3.3V) |
| Power Consumption | 1.5W maximum per end |
| Operating Case Temperature | 0°C to 70°C |
| Storage Temperature | -40°C to 85°C |
Selection Guide & Ordering Information
| Part Number | Length | Connector Type | AWG | Description |
|---|---|---|---|---|
| MCA4J80-N003 | 3m | Finned to finned | 30AWG | Active copper cable, 800Gb/s, OSFP twin-port |
| MCA4J80-N004 | 4m | Finned to finned | 30AWG | Active copper cable, 800Gb/s, OSFP twin-port |
| MCA4J80-N005 | 5m | Finned to finned | 26AWG | Active copper cable, 800Gb/s, extended reach |
| MCA4J80-N003-FLT | 3m | Flat to flat | 30AWG | For DGX H100 Cedar systems |
| MCA4J80-N003-FTF | 3m | Flat to finned | 30AWG | Switch (finned) to DGX H100 (flat) |
Compatibility
| NVIDIA Platform | Port Type | Compatibility Status | Recommended Variant |
|---|---|---|---|
| Quantum-2 QM9700 / QM9790 | OSFP twin-port (finned) | Fully qualified | Standard finned-top |
| Spectrum-4 SN5600 | OSFP 800G (finned) | Fully qualified | Standard finned-top |
| DGX H100 Cedar | OSFP flat-top cage | Qualified | -FLT or -FTF variant |
| ConnectX-7 OSFP Adapter | OSFP | Compatible up to 400G per port | Standard finned-top |
Frequently Asked Questions
Q: What is the difference between ACC and passive DAC?
A: ACC adds low-power equalizer ICs at each end to compensate for signal loss, enabling longer reaches (5m vs. 2m for passive) while maintaining low latency and moderate power (1.5W per end).
Q: Is MCA4J80-N005 compatible with Ethernet switches?
A: Yes, the ACC firmware automatically detects InfiniBand or Ethernet protocol and configures accordingly. It works with Spectrum-4 Ethernet switches.
Q: What is the maximum length for this ACC series?
A: 5 meters (MCA4J80-N005). For lengths up to 2m, use passive DAC (MCP4Y10 series) for lowest power. For lengths beyond 5m, consider AOC or optical transceivers.
Buyer Checklist
- ✓ Required length: 3m, 4m, or 5m – ACC is optimal for distances beyond 2m up to 5m
- ✓ Connector type: finned for standard air-cooled switches; flat or flat-to-finned for DGX H100
- ✓ Protocol: InfiniBand or Ethernet – MCA4J80 auto-detects, no configuration needed
- ✓ Power budget: 1.5W per end – ensure switch can provide sufficient per-port power
- ✓ Cable management: Verify assembly space (156mm for combined end) fits rack door clearance
- ✓ Environmental: Confirm operating temperature range 0-70°C meets data center requirements
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 industries including government, healthcare, finance, manufacturing, AI, and education. Backed by an experienced sales and technical team, Starsurge supplies original NVIDIA networking products, offers tailored solutions, IoT systems, and global delivery.
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