DAC cable CBO SFP28-DAC-2M compatible with Allied Telesis, 2 m, SFP28 twinax direct attach

CBO SFP28-DAC-2M compatible with Allied Telesis is a 2-metre SFP28 direct attach twinax (DAC) cable designed for short-reach 25Gbps connections. The cable connects SFP28 ports directly between switches, servers and network interface cards without the need for separate optical transceivers, reducing component count and power consumption while maintaining low latency and reliable signal integrity for data centre top-of-rack and server-to-switch links.

Advantages

The CBO SFP28-DAC-2M provides a plug-and-play copper twinax solution that delivers full 25Gbps bandwidth with minimal insertion loss and low latency. Its fixed 2-metre length simplifies cable management in dense rack environments and eliminates the need for separate transceiver purchases. The direct-attach form factor reduces power usage compared with active optical options and offers predictable electrical performance for short-distance interconnects.

Suitable for

• Top-of-rack switch to server connections in data centres
• Inter-switch links within the same rack or adjacent racks
• Server NIC to switch high-speed connections
• Short-reach 25Gbps network links where low latency is required

Key specifications

• Connector type: SFP28 direct-attach twinax (fixed cable)
• Cable length: 2 metres
• Data rate: 25 Gbps per lane (SFP28 interface)
• Cable medium: passive twinax copper suitable for short-reach links
• Compatibility: designed for use with Allied Telesis SFP28 ports and other compatible SFP28 interfaces
• Form factor: compact SFP28 plug on both ends for low-profile port density

How to use

Insert each SFP28 connector into the corresponding SFP28 port on your switches, servers or network cards until the connector latches. Ensure equipment is powered off or supports hot-plugging per the device documentation before insertion or removal. Verify link status and speed on both devices after connection; the cable is intended for short-reach 25Gbps links and requires compatible SFP28 ports on both ends to achieve full performance.

Recommendations

Use the 2-metre CBO SFP28-DAC-2M for intra-rack and adjacent-rack high-speed connections where short fixed-length copper cabling is appropriate. Avoid routing the cable through sharp bends or compressing it under heavy objects. For longer distances or flexible routing requirements, consider active optical or modular transceiver-based solutions.