Description
The NVIDIA MCA4J80-N003 is a 3-meter active copper cable (ACC) that links two 800Gb/s (2x 400Gb/s) twin-port OSFP ports using 8 channels of 100G-PAM4. An ACC is a passive copper cable with a pre-emphasis equalizer IC in each end. This extends reach to 3β5 meters while keeping latency very low and power at a maximum of 1.5W per end. Its firmware supports both InfiniBand and Ethernet and enables the right protocol automatically for the attached switch. The main use is linking 400Gb/s Quantum-2 InfiniBand or Spectrum-4 Ethernet switches to each other. Both ends have finned tops for air-cooled switch cages.
Technical Specifications:
| Specification | Details |
|---|---|
| Brand | NVIDIA |
| MPN | MCA4J80-N003 |
| NVIDIA SKU | 980-9I60Z-00N003 |
| Product Type | Active Copper Cable (ACC) |
| Data Rate | 800Gb/s (2x 400Gb/s), 8x 100G-PAM4 |
| Connectors | Twin-port OSFP to twin-port OSFP (OSFP MSA Rev 1.12) |
| Top Style | Finned top, both ends |
| Length | 3m |
| Length Tolerance | Β±50mm |
| Wire Gauge | 30AWG, 2x 8 pairs |
| Cable Diameter | 7.2mm |
| Minimum Bend Radius | 72mm (single bend 5x diameter; repeated 10x) |
| Assembly Space | 135mm combined / 128mm single end |
| Power | 1.5W max per end |
| Supply Voltage | 3.135β3.465V (3.3V typical) |
| Characteristic Impedance | 90β110Ξ© (100Ξ© typical) |
| Propagation Delay | 4.5ns/m max |
| Operating Case Temperature | 0Β°C to 70Β°C |
| Storage Temperature | -40Β°C to 85Β°C |
| Operating Humidity | 5% to 85% |
| Jacket / PCB | LSZH / lead-free, halogen-free |
| Safety / EMC | CB, TUV, CE, EAC, UKCA / CE, FCC, ICES, RCM, VCCI |
| Compliance | RoHS |
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