Dell SFP+ to SFP+ 1 m InfiniBand / Fibre Optic Cable V250M-RFB, 10Gbps Twinax/Active

The Dell SFP+ to SFP+ 1 m cable (model V250M-RFB) is a direct-attach Twinax/active cable with SFP+ connectors on both ends and a 1 metre length. It supports 10 Gbps links for InfiniBand or fibre-optic SFP+ environments, providing a short-range, low-latency connection between switches, servers and network adapters. The transceiver functionality includes an enhanced digital diagnostic monitoring interface for real-time access to operating parameters such as device temperature, laser bias current, transmitted and received optical power, and supply voltage. The product has been tested and validated on Dell systems and is supported by Dell Technical Support when used with Dell hardware.

Advantages

The cable offers a compact, factory-terminated SFP+ to SFP+ connection that eliminates the need for separate transceivers and patch cords for short links, reducing port and rack space usage. Its Twinax/active design provides low latency and reliable 10 Gbps throughput suitable for high-density environments. Built-in diagnostic monitoring enables quick verification of link health and operating conditions without additional equipment.

Suitable for

• Short-range, high-speed connections between switches and top-of-rack servers
• Intra-rack links in data centres and server rooms
• Connections between network adapters and storage or compute nodes requiring 10 Gbps throughput

When it may not be suitable

This 1 m Twinax/active SFP+ cable is intended for short-range links and is not suitable for long-distance fibre runs or backbone cabling between distant racks or buildings. It is not a substitute for multimode or single-mode optical transceivers and fibre cables required for longer reach connections.

Key specifications

• Connector type: SFP+ to SFP+
• Length: 1 m
• Data rate: up to 10 Gbps
• Cable type: Twinax / active
• Features: enhanced digital diagnostic monitoring (real-time access to temperature, bias current, transmitted/received optical power, supply voltage)

How to use

Insert each SFP+ connector into the corresponding SFP+ ports on compatible switches, servers or network adapters until the latch engages. Ensure powered equipment is compatible with direct-attach Twinax/active cables and that port configurations support 10 Gbps operation. Use the host system or management interface to access diagnostic monitoring data if needed to check link status and operating parameters.

What to consider before purchase

• Verify that your switch, server or network adapter supports direct-attach SFP+ Twinax/active cables
• Confirm that a 1 m cable length meets your rack or cabinet layout requirements
• Ensure you require a 10 Gbps short-reach connection rather than a longer-reach fibre solution

Usage recommendations

Use this 1 m SFP+ Twinax/active cable for short intra-rack and top-of-rack connections where low latency and 10 Gbps throughput are required; monitor link diagnostics periodically to ensure optimal operating conditions.