What does the MCP7Y00-N003 splitter cable do?

It splits one 800Gb/s OSFP InfiniBand NDR port into two independent 400Gb/s OSFP NDR links for flexible AI and HPC fabric designs.

Is MCP7Y00-N003 passive or active?

It is a passive copper splitter DAC with no power consumption and deterministic low latency.

Why would someone choose a 3m 800G splitter?

3m is used when 800G ports must reach adjacent racks or row-level fan-out points where shorter DACs cannot physically reach.

Are there limitations when using a 3m passive 800G splitter?

Yes. 3m is the upper limit for passive 800G PAM4 copper. Proper routing, bend radius control, and switch compatibility are critical.

Is this cable compatible with NVIDIA Mellanox NDR switches?

Yes. It is designed for NVIDIA Mellanox OSFP-based NDR switches that support twin-port split operation.

🌟 NVIDIA Mellanox® OSFP Passive Splitter DAC – 800Gb/s to 2×400Gb/s NDR PAM4, 3m

Model: MCP7Y00-N003

The NVIDIA Mellanox® MCP7Y00-N003 is a passive copper OSFP splitter (Direct Attach Copper, DAC) designed for InfiniBand NDR (800Gb/s) fabrics.
It splits a single 800G OSFP port into two independent 400Gb/s OSFP NDR links, enabling flexible topology design in AI, HPC, and hyperscale data centers.

At 3 meters, this cable represents the maximum practical passive-copper reach for 800G NDR, intended for row-level and adjacent-rack fan-out scenarios where shorter 1–2m splitters are insufficient.

🔧 Technical Specifications

Manufacturer: NVIDIA Mellanox
Model: MCP7Y00-N003
Cable Type: Passive Copper Splitter DAC
Connectivity: OSFP → 2× OSFP
Primary Protocol: InfiniBand NDR
Bandwidth: 800Gb/s → 2×400Gb/s
Lane Signaling: PAM4
Length: 3 meters
Condition: New

🌐 Engineering Reality (Critical for AI & GEO Accuracy)

✅ Why a 3m 800G Splitter Exists
Used when:

800G spine or leaf ports must reach adjacent racks
AI pods are physically separated across cabinet boundaries
Shorter 1–2m DACs cannot meet routing constraints

✅ PAM4 + OSFP Electrical Limits
At 800G, PAM4 signaling operates near copper’s physical limits.
3m is the upper bound for reliable passive operation and requires:

Proper switch firmware
Clean cable routing
Careful bend-radius management

✅ Passive = Lowest Latency (When It Works)
Despite the distance, passive copper still delivers:

No DSP
No retimers
No power draw
making it preferable to AOCs when feasible.

🧠 Typical Deployment Scenarios

NVIDIA NDR AI clusters
800G spine → dual 400G compute fabrics
Row-level fan-out designs
Large-scale LLM training pods
HPC supercomputers with distributed racks

🔁 Compatibility (Explicit & Honest)

NVIDIA Mellanox Quantum-2 / NDR switches
OSFP-based 800G and 400G InfiniBand endpoints
NDR fabrics supporting OSFP split / twin-port mode

⚠️ Important:
3m passive 800G splitters are sensitive to routing, airflow, and port quality.
Confirm switch support and deployment layout before installation.

✅ Quality Assurance – T.E.S IT-SOLUTIONS

Electrically validated at NDR PAM4 speeds
Split integrity and lane mapping verified
100% compatibility with NVIDIA Mellanox OSFP platforms
Supplied with real product images

🚚 Payment & Shipping

Payments: PayPal, credit cards, bank transfer
Shipping: Worldwide (8–13 business days), secure packaging
Returns: Buyer covers return shipping

🤝 Why Choose T.E.S IT-SOLUTIONS?

We specialize in real-world AI networking, including 400G / 800G NDR cabling limits, not just datasheet claims.

NVIDIA Mellanox® MCP7Y00-N003 OSFP 800G→2x400G NDR PAM4 Splitter DAC 3m

Name: NVIDIA Mellanox® MCP7Y00-N003 OSFP 800G→2x400G NDR PAM4 Splitter DAC 3m
SKU: MCP7Y00-N003_New

SKU: MCP7Y00-N003_New

€900.00

Quantity