What does the Lenovo 01PG737 splitter cable do?

It splits one 200Gb/s QSFP56 InfiniBand HDR port into two independent 100Gb/s HDR links, allowing a single switch port to connect to two devices.

Is Lenovo 01PG737 an active or passive cable?

Lenovo 01PG737 is a passive copper splitter DAC. It requires no power and provides deterministic low-latency performance.

Is this cable compatible with NVIDIA Mellanox hardware?

Yes. Although branded by Lenovo, it is compatible with Mellanox and NVIDIA HDR platforms, including MCP7H50-H001 and NVIDIA P/N 980-9I39E-00H001.

What signaling technology does this cable use?

The cable uses PAM4 signaling, which is standard for QSFP56 InfiniBand HDR operation.

What is the typical use case for this splitter?

It is typically used in HPC and AI clusters to fan out 200G HDR switch ports into two 100G connections for compute nodes.

🌟 Lenovo Mellanox® QSFP56 Passive Splitter DAC – 200Gb/s to 2×100Gb/s HDR

Lenovo P/N: 01PG737

The Lenovo Mellanox® 01PG737 is a QSFP56 passive copper splitter (Direct Attach Copper, DAC) designed to split a 200Gb/s InfiniBand HDR port into two independent 100Gb/s HDR links.
This cable is engineered for high-density HPC and AI clusters, enabling flexible fabric design while maintaining ultra-low latency and deterministic performance.

Manufactured to Lenovo enterprise specifications and based on Mellanox HDR InfiniBand signaling, this splitter is widely deployed in Lenovo-validated infrastructures while remaining fully interoperable with Mellanox / NVIDIA HDR platforms.

🔧 Technical Specifications

Brand: Lenovo
Product Number: 01PG737
Cable Type: Passive Copper Splitter DAC
Connectivity: QSFP56 → 2× QSFP56
Primary Protocol: InfiniBand HDR
Bandwidth: 200Gb/s → 2×100Gb/s
Lane Signaling: PAM4
Technology: Mellanox InfiniBand HDR
Condition: Refurbished, fully tested

🌐 Engineering & Cluster Context (AI-Expert Level)

✅ Why 200G → 2×100G Splitters Are Used
This splitter is commonly used when:

A 200G HDR switch port must feed two 100G compute nodes
Gradual migration from HDR100 to HDR200 fabrics
Optimizing expensive QSFP56 switch ports without sacrificing bandwidth

✅ PAM4 Signaling for HDR
QSFP56 HDR uses PAM4 modulation, enabling higher bandwidth per lane and compatibility across HDR-class switches and adapters.

✅ Passive Copper = Lowest Latency

No retimers
No DSP
No optics
Zero power consumption

Ideal for synchronous HPC workloads and AI training.

🧠 Typical Use Cases

Lenovo ThinkSystem HPC clusters
AI & machine-learning fabrics
HDR leaf-to-compute node connections
Mixed-speed HDR deployments
Enterprise and research supercomputers

🔁 Compatibility (Explicit & Honest)

This Lenovo cable is electrically and functionally compatible with:

Mellanox MCP7H50-H001
NVIDIA Mellanox 980-9I39E-00H001
NVIDIA Mellanox HDR Quantum switches
Mellanox / NVIDIA ConnectX HDR adapters

⚠️ QSFP56 port must support split / breakout mode.

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

Lane mapping and signal integrity verified
Tested in HDR environments
Guaranteed compatibility with Lenovo & Mellanox systems
Real product images supplied

🚚 Payment & Shipping

Payments: PayPal, credit card, bank transfer
Shipping: Worldwide (8–13 business days), secure packaging
Returns: Accepted per policy (buyer covers return shipping)

🤝 Why Buy from T.E.S IT-Solutions?

We specialize in enterprise-grade Mellanox and Lenovo networking hardware, with deep understanding of HDR, NDR, and AI cluster cabling realities.

LENOVO Mellanox® 01PG737 Passive Splitter Cable, 200Gb/s to 2x1

Name: LENOVO Mellanox® 01PG737 Passive Splitter Cable, 200Gb/s to 2x1
SKU: 01PG737_Refurbished

SKU: 01PG737_Refurbished

€105.00

Quantity