InfiniBand/fibre optic cable BlueOptics ACC761-10000S-BL 1 m QSFP28 Male/Male

The BlueOptics ACC761-10000S-BL is a 1 m InfiniBand/fibre optic direct attach cable with QSFP28 male connectors on both ends. Designed for short-reach high-speed interconnects, it supports 100GBase-CR4 and is suitable for linking hardware in racks and between adjacent racks. The cable implements a passive twinax copper design with 30 AWG conductors and follows MSA guidelines for QSFP28 connectivity, delivering low-latency, low-power connections for switches, routers and storage systems that accept QSFP28 direct attach cables.

Advantages

The cable provides a straightforward, low-power 100 Gbps connection over 1 metre with minimal latency and a simple passive design that does not require additional power or transceivers. Components are selected to meet industry MSA requirements, offering compatibility across major hardware platforms that support QSFP28 100GBase-CR4 DACs. The passive twinax construction yields low failure rates and reduced operational costs compared with active optical transceivers for short-distance links.

Suitable for

• Short-reach 100 Gbps connections between switches and routers within racks
• Interconnects between adjacent racks in data centers
• High-performance storage system links supporting InfiniBand, Ethernet or Fibre Channel protocols
• Environments requiring low-latency, low-power direct attach solutions

Key specifications

• Length: 1 metre
• Connector type: QSFP28 male to QSFP28 male
• Data rate: up to 100 Gbps (100GBase-CR4 compatible)
• Cable type: passive twinax copper
• Conductor gauge: 30 AWG
• Standards: MSA-compliant QSFP28 form factor

How to use

Install the cable by inserting each QSFP28 male connector firmly into the corresponding QSFP28 port on the compatible devices, ensuring the latch engages. Use the 1 m length for direct rack-mount or adjacent-rack connections; confirm that the connected hardware officially supports passive QSFP28 100GBase-CR4 DACs. No separate power or transceiver modules are required for passive operation. For initial deployment, verify link status and speed in the device management interface and perform acceptance testing to confirm full 100 Gbps operation under your intended protocol (Ethernet, FCoE, Fibre Channel, or InfiniBand).

Recommendations

For reliable performance, avoid sharp bends and excessive mechanical stress on the cable, maintain recommended bend radius for twinax assemblies, and route the cable to minimize electromagnetic interference. Use this direct attach cable for short-distance, high-bandwidth links where passive QSFP28 DACs are supported; for longer distances or optical isolation, select an active optical or transceiver-based solution instead.