BlueOptics QSFP AOC 40GBASE-SR4 15m optical active cable NDCCGJ-C402-BO — 40Gbps Ethernet / InfiniBand compatible

BlueOptics QSFP AOC 40GBASE-SR4 15m optical active cable NDCCGJ-C402-BO is a factory-assembled multimode active optical cable designed for short-reach, high-bandwidth connections. The cable uses a QSFP form-factor interface to deliver 40Gbps aggregate throughput suitable for data centre and rack-to-rack links. With a 15 metre length it targets switch-to-switch, switch-to-server and server-to-storage interconnects where low latency and high-density ports are required.

Advantages

This active optical cable provides a compact, pre-terminated solution that eliminates on-site fibre termination and simplifies deployment in dense cabling environments. It supports 40Gbps aggregated bandwidth over multimode fibre with predictable signal quality and reduced electromagnetic interference compared with copper alternatives. The QSFP connector format enables high port density and straightforward hot-plug replacement in compatible QSFP ports.

Suitable for

• Short-reach links inside data centres and equipment rooms (rack-to-rack connectivity)
• High-throughput uplinks between switches and core aggregation devices
• Server-to-switch and switch-to-storage interconnects requiring 40Gbps lanes
• Environments where multimode optical cabling and QSFP ports are in use

When it may not be suitable

This cable is intended for short-reach multimode fibre environments; it is not designed for long-span single-mode runs or campus backbone distances that exceed the intended optical budget. It requires devices with compatible QSFP ports and support for the 40GBASE-SR4 or equivalent QSFP AOC signalling; it will not function if equipment does not accept QSFP AOC modules.

Key specifications

• Interface: QSFP form-factor
• Data rate: 40 Gbps aggregate
• Distance: 15 metres optimized for short-reach multimode links
• Optical mode: multimode fibre operation
• Application: Ethernet 40GBASE-SR4 and InfiniBand-compatible links

How to use

Plug the QSFP connector ends into the QSFP ports on the two devices to be connected, ensuring both ports are powered off or in a safe hot-plug state as recommended by the device vendor. Verify link status and port configuration on each device after insertion; most systems will automatically negotiate the link if the hardware supports 40GBASE-SR4 or equivalent AOC signalling. Route the cable to avoid tight bends and mechanical stress, keeping minimum bend radius and maintaining separation from sources of physical damage.

What to consider before purchase

• Confirm both devices have compatible QSFP ports and support AOC or 40GBASE-SR4 signalling
• Ensure your cabling infrastructure uses multimode fibre optics for short-reach links
• Verify 15 m length matches your rack-to-rack or equipment spacing requirements

Usage recommendations

Maintain gentle cable routing and adhere to manufacturer minimum bend radius specifications. Check firmware and hardware compatibility on both ends to ensure the QSFP AOC is recognized. For dense installations, label both ends and document port assignments to simplify maintenance and future changes.