Mellanox Technologies
Mellanox Technologies MCP7H00-G002R QSFP28 to 2xQSFP28 6.56ft passive copper hybrid network ethernet cable
Connects a single 100 GbE QSFP28 port to two 50 GbE QSFP28 ports over 6.56 ft of passive copper, compliant with SFF-8431 and SFF-8665
- TypeQSFP28
- CatQSFP28
- Connector AQSFP28 Network
- Connector BQSFP28 - Network 2 x QSFP28 Network
- 100GbE to dual 50GbE links from one QSFP28 port
- 56ft passive copper keeps power draw near zero
- SFF-8431 and SFF-8665 compliant for broad switch support
- Pre-programmed EEPROM on each connector enables instant host recognition
- Rigorous factory testing ensures reliable installation every time
Direct-attach 100GbE breakout cable
The Mellanox MCP7H00-G002R is a passive copper hybrid cable that splits a single QSFP28 100GbE port into two QSFP28 50GbE ports. It provides a fixed 6.56ft link for short-reach rack or row connections. The assembly complies with SFF-8431 and SFF-8665 specifications and includes EEPROM data on each connector. It targets data-centre operators who need cost-efficient port density without active optics.
Replaces active optical breakouts for short runs
When the link distance fits within 6.56ft, this passive assembly removes the power draw and latency of transceivers and fibre patch cords. The jump is worth it when the switch or NIC supports QSFP28 breakout mode and the topology demands 2x50GbE fan-out from a 100GbE port. It also eliminates the need to stock separate transceiver modules and fibre cables for the same connection.
Suits high-density leaf-spine or storage fabrics
The cable suits engineers building 100GbE to 2x50GbE breakout links in top-of-rack or middle-of-row architectures. It is not for links longer than 6.56ft, for active-reach requirements, or for ports that do not support QSFP28 breakout configuration. Buyers needing extended distance or active signal conditioning should look at other interconnect types.
Highlights
- 100GbE to dual 50GbE links from one QSFP28 port
- 56ft passive copper keeps power draw near zero
- SFF-8431 and SFF-8665 compliant for broad switch support
- Pre-programmed EEPROM on each connector enables instant host recognition
- Rigorous factory testing ensures reliable installation every time
Specifications
| Brand | Mellanox |
|---|---|
| Type | QSFP28 |
| Cat | QSFP28 |
| Connector A | QSFP28 Network |
| Connector B | QSFP28 - Network 2 x QSFP28 Network |
| Shipping weight | 0.54 kg |
| Package size | 330 × 305 × 51 mm |
Questions about this item
What rack spacing does the 6.56ft hybrid cable need between the single QSFP28 port and the two QSFP28 ports?
The 6.56ft length connects a single QSFP28 cage to two separate QSFP28 cages, so allow enough slack for cable routing and the splitter breakout without tension on either connector.
How do I seat the QSFP28 ends correctly, and what step is often missed?
Push each QSFP28 connector until the latch clicks; the commonly missed step is verifying both split ends are fully latched, not just the single-port side.
When should I plan to replace this passive copper cable?
Replace if link errors appear, the EEPROM data becomes unreadable, or physical damage occurs at the splitter or connector latches after repeated insertions.
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