InfiniBand/fibre optic cable BlueOptics UACC-DAC-SFP28-2M-BL 2m Male/Male

The BlueOptics UACC-DAC-SFP28-2M-BL is a 2 m direct attach cable (DAC) with SFP28 male connectors on both ends designed for short-range high-speed connections. This passive twinax copper cable complies with 25GBase-CR electrical signaling and the SFP28 MSA form factor, providing a simple, low-latency link between rack-mounted switches, routers, storage systems and other compatible networking hardware. The cable is intended for environments where reliable, energy-efficient 25 Gbit/s links are required over short distances.

Advantages

The cable offers low power consumption, minimal latency and straightforward plug-and-play installation without the need for transceivers. Constructed to industry MSA guidelines and assembled using high-quality components, it supports stable performance for Ethernet, FCoE, Fibre Channel and InfiniBand applications up to 25 Gbit/s at 2 m length. Passive twinax design reduces complexity and failure points while delivering a cost-effective connectivity solution for data center and rack-to-rack links.

Suitable for

• Short-range connections between rack-mounted switches and adjacent racks
• High-speed uplinks and server-to-switch links in data centers
• Storage system interconnects and SAN links supporting 25G protocols
• Environments requiring low-latency, low-power 25G connectivity

Key specifications

• Length: 2 meters
• Connector type: SFP28 male to SFP28 male
• Data rate support: up to 25 Gbit/s
• Cable type: passive twinax copper (30 AWG)
• Protocol support: Ethernet, FCoE, Fibre Channel, InfiniBand (as supported by host hardware)
• Designed for short-distance, rack-to-rack or intra-rack use

How to use

Verify that both devices support passive SFP28 direct attach cables and 25GBase-CR signaling. Power down or follow hot-plug procedures required by your hardware vendor, insert the SFP28 connectors into the corresponding ports until they latch, and ensure both ends are seated correctly. After insertion, confirm link status and negotiated speed in the host device management interface. For removal, release the connector latch and pull straight out to avoid damaging the port.

Recommendations

Use this 2 m DAC for direct short-range links within racks or between adjacent racks where low latency and low power consumption are priorities. Avoid routing the cable across long distances or subjecting it to repeated tight bends; maintain recommended bend radius and secure the cable to prevent strain on the connectors. Confirm vendor compatibility in environments that enforce OEM validation for passive DACs.