SFP28 Direct Attach Cable BlueOptics 25GBASE-CR 1 m

BlueOptics SFP28 Direct Attach Cable 25GBASE-CR 1 m is a passive copper twinax assembly with SFP28 connectors engineered for short-reach 25 Gigabit Ethernet links. The 1 meter length provides a compact, low-latency connection between switches, servers or network appliances in data centers and enterprise racks. This direct attach cable supports 25GBASE-CR signalling and is intended for use where a reliable, cost-effective fixed link with SFP28 form-factor compatibility is required.

Advantages

The cable offers low insertion loss and minimal latency typical of twinax copper assemblies, enabling efficient high-bandwidth transmission for short interconnects. Its integrated SFP28 interfaces simplify installation by matching SFP28 ports directly, eliminating the need for separate transceivers. The 1 m length reduces cable clutter in rack deployments and supports stable electrical performance for 25 Gigabit Ethernet connections.

Suitable for

• Short-reach 25GbE links between switches in data center racks
• Direct connections between servers and top-of-rack switches
• Interconnects for network appliances and storage controllers within the same rack

Key specifications

• Form factor: SFP28 direct attach cable with integrated connectors
• Data rate: 25 Gigabit Ethernet (25GBASE-CR)
• Media type: Passive twinax copper
• Length: 1 meter
• Typical application: Short-reach interconnects in racks and server rooms

How to use

Insert each SFP28 connector into compatible SFP28 ports on the devices to be linked until the connector latches. Confirm link status on connected switches or servers and verify negotiated speed is 25Gbps. The cable requires no external power or configuration beyond port settings; if necessary, adjust interface parameters on network equipment for optimal operation.

Usage recommendations

Use the cable for direct, short-distance 25GbE connections inside racks to minimize latency and cable bulk. Avoid sharp bends and excessive pulling force to preserve signal integrity. Verify port compatibility with SFP28 direct attach passive cables in equipment documentation prior to deployment.