200G to 2x100G HDR100 DAC Splitter Cable MCP7H50-H002R26

The Mellanox MCP7H50-H002R26 is a passive copper hybrid splitter cable designed for 200Gb/s InfiniBand HDR (High Data Rate) applications. It offers a cost-effective, low-power alternative to optical interconnects for short-distance connections inside data centers. One end features a 200Gb/s QSFP56 connector, while the other side breaks out into two 100Gb/s HDR100 QSFP56 ports. The internal wiring maps each of the two copper pairs (pair 1&2, 3&4) from the single QSFP56 to independent dual copper pairs on each of the two QSFP56 connectors, enabling seamless HDR100 connectivity.

Each QSFP56 port includes a field-replaceable EEPROM that stores product configuration and identification data, readable by the host system for advanced management and diagnostics. With rigorous production testing and robust mechanical design, this cable ensures out-of-the-box reliability for high-performance computing, AI clusters, and hyperscale infrastructures.

Built on passive copper twinax technology, the MCP7H50-H002R26 uses 26 AWG wire gauge to achieve optimal signal integrity up to 2 meters. It leverages PAM4 (4-level Pulse Amplitude Modulation) signaling to deliver 50Gb/s per lane while maintaining ultra-low latency — ideal for latency-sensitive HPC and AI training fabrics. The hybrid breakout architecture allows flexible rack design, connecting one 200G HDR switch port to two 100G HDR100 servers or adapters without active retimers. All electrical parameters meet SFF-8665 and InfiniBand Trade Association (IBTA) specifications, ensuring interoperability across standards-based equipment.

• InfiniBand HDR leaf-spine topologies: connect 200Gb/s switch ports to 100Gb/s HDR100 compute nodes.
• High-performance computing (HPC) clusters requiring mixed speed interconnects without active optical costs.
• AI/ML data center fabrics: efficient breakout cabling for GPU servers with dual-port 100G connectivity.
• Storage systems and converged Ethernet/IB environments where short-reach copper reduces power and latency.
• Top-of-rack (ToR) cabling: clean cable management with flexible bending radius (minimum single bend: 34mm).

Engineered for seamless integration with Mellanox (NVIDIA) InfiniBand switches and adapters. Fully compliant with IBTA HDR and HDR100 specifications, also backward compatible with HDR100, EDR, and FDR links at lower speeds when used with appropriate adapters. The EEPROM content follows SFF-8636, enabling robust host-side management via I²C. For third-party platforms, compatibility depends on host system adherence to QSFP56 MSA and InfiniBand HDR specifications.

Note: Other lengths may be available upon request. Please confirm custom lengths with sales team.

• Zero power consumption: Passive design eliminates power draw on the cable assembly, reducing overall data center PUE.
• Ultra-low latency: No retimers or optical conversion, ideal for high-frequency trading and HPC workloads.
• Cost-efficient breakout: Eliminates two separate 100G cables plus additional switch ports; reduces cabling complexity.
• Reliability & durability: 1-year limited hardware warranty; rigorous production testing ensures superior out-of-box performance.
• Environmental compliance: RoHS, LF/HF PCB, LSZH jacket suitable for plenum and strict fire-safety requirements.

Each Mellanox LinkX DAC cable comes with a 1-year limited hardware warranty covering parts repair or replacement. Global technical support is available through authorized distributors and the NVIDIA Networking support portal. For volume deployments, dedicated FAE resources and compatibility validation services are provided. Custom labeling, pulltab color options, and length modifications can be arranged for qualified OEM/ODM projects.

• Do not exceed the minimum bend radius: 34mm for single bend (far from connector) and 10x cable OD (approx 68mm) for repeated bending to avoid signal degradation.
• Ensure the latch mechanism on QSFP56 connectors is fully engaged to maintain proper grounding and EMI performance.
• Use ESD-safe practices when handling transceiver/cable ends; static discharge may damage EEPROM components.
• Do not pull or stretch cables beyond the rated tension; always grasp the connector body when unplugging.

Hong Kong Starsurge Group Co., Limited is a technology-driven provider of network hardware, IT services, and system integration solutions. Founded in 2008, the company serves customers worldwide with products including network switches, NICs, wireless access points, controllers, cables, and related networking equipment. Backed by an experienced sales and technical team, Starsurge supports industries such as government, healthcare, manufacturing, education, finance, and enterprise. The company also offers IoT solutions, network management systems, custom software development, multilingual support, and global delivery. With a customer-first approach, Starsurge focuses on reliable quality, responsive service, and tailored solutions that help clients build efficient, scalable, and dependable network infrastructure.