DAC cable CBO JNP-SFP-25G-DAC-50CM 25G direct attach SFP+ 50 cm

The DAC cable CBO JNP-SFP-25G-DAC-50CM 25G direct attach SFP+ 50 cm is a twinax copper direct-attach cable designed for short-reach 25 Gbps connections. It provides a fixed SFP+ interface on both ends and is intended for high-performance interconnects between switches, servers and network interface cards. The 50 cm length makes it convenient for top-of-rack and server-to-switch links where low latency and energy efficiency are required without the need for separate optical transceivers.

Advantages

This direct attach SFP+ cable delivers 25 Gbps throughput with minimal latency and reduced power consumption compared to optical transceivers. Its fixed twinax construction simplifies installation and eliminates the need to manage separate transceiver modules, lowering component count and maintenance. The short 50 cm length reduces signal loss and is suited to dense rack environments where reliable short-distance connectivity is essential.

Suitable for

• Top-of-rack switch-to-switch links in data centers
• Server-to-switch connections inside racks
• High-speed NIC to switch interconnects
• Short-reach point-to-point 25 Gbps links

Key specifications

• Data rate: 25 Gbps
• Connector type: SFP+ fixed twinax ends
• Cable type: Twinax copper (DAC)
• Length: 50 cm
• Typical use: Short-reach server and switch interconnects
• Latency: Low (copper direct-attach design)
• Power: Lower device-side power compared with optical transceivers

How to use

Install the DAC cable by inserting each SFP+ end into the appropriate SFP+ ports on your switch, server or NIC until the latches engage. Ensure devices are powered down or support hot-plug SFP+ modules per the vendor's guidelines before insertion or removal. Verify link status on both devices and configure network settings such as speed, duplex, and link aggregation as required by your network design. Avoid sharp bends and maintain recommended bend radius to preserve signal integrity.

Usage recommendations

Use this 50 cm DAC cable for short, direct 25 Gbps connections inside racks and avoid extended routing through cable trays that could exceed recommended bend radius. For mixed vendor environments, confirm SFP+ DAC compatibility with your switch and server models before deployment.