AOC SFP28 25GBASE-SR 25m BlueOptics 4X97A94011-BO compatible with Lenovo

The AOC SFP28 25GBASE-SR 25m BlueOptics compatible with Lenovo is an active optical cable designed for short-reach 25 Gbps Ethernet links. It uses SFP28 form-factor connectivity to deliver low-latency, high-bandwidth connections over multimode fiber for distances up to 25 metres. Intended for direct attach between servers, switches and other SFP28 ports, this AOC simplifies cabling while providing the signal integrity required in dense rack and data centre environments.

Advantages

This active optical cable provides a compact, pre-terminated solution that eliminates the need for separate transceivers and patch cords. The SFP28 form factor ensures wide compatibility with SFP28 sockets and allows hot-plug installation. By using multimode fibre the cable supports high data rates with low power consumption and reduced electromagnetic interference compared with copper alternatives, while keeping signal loss low over the specified 25 m reach.

Suitable for

• Short-reach 25 Gbps server-to-switch connections within racks and across adjacent racks
• Top-of-rack switch interconnects and spine-leaf fabrics in data centres
• High-performance computing clusters and storage arrays requiring 25G links
• Environments where simplified, pre-terminated cabling and low latency are priorities

When it may not be suitable

This cable is intended for multimode short-reach applications and is limited to a maximum distance of 25 metres; it is not suitable for long-reach or single-mode fibre links. It also requires available SFP28 ports on both ends and compatibility with the host device; systems without SFP28 interfaces or that require a specific vendor-certified transceiver may not accept this compatible AOC.

Key specifications

• Data rate: 25 Gbps (SFP28)
• Reach: up to 25 metres over multimode fibre
• Connector / form factor: SFP28 active optical cable
• Application: short-reach Ethernet interconnects in racks and data centres
• Latency: low, suitable for time-sensitive applications
• Cabling: pre-terminated multimode fibre AOC with integrated transceiver modules

How to use

Install by firmly inserting each SFP28 connector into the SFP28 port on the two devices to be connected, ensuring the latching mechanism engages. Confirm both devices recognise the SFP28 link and configure interface settings (speed, auto-negotiation, and VLANs) as required by your network design. Route the cable to avoid tight bends and high-stress points; multimode fibre AOCs require a minimum bend radius to preserve optical performance. For maintenance, power down or administratively disable interfaces if hot-unplugging is necessary and follow your organisation's ESD and handling procedures.

What to consider before purchase

• Confirm both devices have SFP28 ports and support 25 Gbps links
• Verify that short-reach multimode fibre and a 25 m maximum distance fit your layout
• Check host compatibility policies if the switch or server requires vendor-certified optics
• Plan cable routing to respect bend radius and avoid interference with other equipment

Usage recommendations

Use this AOC for intra-rack and adjacent-rack 25G connections where a compact, low-power and low-latency link is required. Ensure firmware and port settings on connected devices are up to date and configure monitoring to detect link status and errors promptly.