Supermicro Cable CBL-MCIO-1221M5 MCIO x8 STR to - Cable

Internal MCIO x8 straight-to-straight cable engineered for high-density server and storage environments, delivering PCIe Gen5-ready performance up to 32 GT/s per lane over a 5-meter reach. Its dual MCIO x8 connectors with straight orientation ensure a secure, low-profile fit in Supermicro systems, while full shielding and 100-ohm impedance maintain signal integrity under heavy I/O loads.

Advantages

This cable provides a dependable, high-bandwidth link for next-generation NVMe and GPU configurations. The straight connector design minimizes strain on motherboard ports and simplifies cable routing in tight chassis. Copper conductors and PVC jacket balance flexibility with durability, and RoHS compliance supports environmentally responsible deployments.

Suitable for

• Supermicro servers and storage arrays with MCIO x8 ports
• High-performance computing (HPC) clusters requiring low-latency PCIe Gen4/Gen5 connectivity
• Data centers upgrading to PCIe Gen5 backplanes and add-in cards
• OEM and system integrator builds needing a reliable internal data cable

Key specifications

• Cable type: MCIO (Mini-SAS HD to OCuLink compatible)
• Connectors: MCIO x8 straight to MCIO x8 straight
• Length: 5 meters (16.4 ft)
• Lanes: x8
• Data rate: Up to 32 GT/s per lane (PCIe Gen5)
• Impedance: 100 Ohm
• Shielding: Yes
• Conductor material: Copper
• Jacket material: PVC
• Color: Black
• Compliance: RoHS

Recommendations

For mission-critical deployments, pair this cable with Supermicro's PCIe Gen5-ready backplanes and retimers to fully utilize its bandwidth. Verify port orientation and available routing space before installation, and use proper strain relief to extend service life in high-vibration environments.