Passive SFP56 to SFP56 Direct Attach Copper Cable 1m, BlueOptics (980-9I873-00G001-BL) 50GBASE-CR

Passive SFP56 to SFP56 Direct Attach Copper Cable, 1 m, BlueOptics is a twinax passive DAC engineered for short-reach 50GBASE-CR links. The fixed cable assembly provides a direct electrical connection between SFP56 ports on switches, servers and routers, enabling 50 Gbit/s full-duplex data transmission with minimal latency and low power consumption. With a one-meter length and a compact form factor, this cable is designed for top-of-rack and high-density rack environments where reliable, low-cost copper connectivity is required.

Advantages

This passive SFP56 to SFP56 DAC offers immediate plug-and-play compatibility with SFP56 ports and eliminates the need for separate transceivers, reducing overall component count and power draw. The twinax construction ensures consistent signal integrity for short distances while keeping latency and jitter low. The 1 m length balances reach and manageability in dense cabling scenarios, and the standardized SFP56 interface supports straightforward deployment in existing 50G infrastructure.

Suitable for

• Top-of-rack interconnects in data centers
• Direct connections between switches and servers
• High-density networking racks and blade server enclosures
• Low-latency links in HPC and enterprise networks

Key specifications

• Data rate: 50 Gbit/s (50GBASE-CR)
• Connector type: SFP56 on both ends
• Cable type: Passive twinax (Direct Attach Copper)
• Length: 1 meter
• Latency: optimized for short-reach, low-latency links
• Color: blue (outer jacket)
• Form factor: fixed cable assembly for high-density ports

How to use

Insert each SFP56 connector into the corresponding SFP56 port on network devices until the latch engages. Verify link status in the device management interface and ensure both ends are configured for 50G operation if required by the equipment. Route the cable to avoid excessive bending or compression; maintain manufacturer-recommended bend radius and secure the cable to minimize strain on connectors. For troubleshooting, swap ports or use a known-good cable to isolate potential port issues.

Usage recommendations

Use this passive DAC for short intra-rack or adjacent-rack links where distances do not exceed the cable's intended 1 m reach. Avoid running the cable near high-power or high-electromagnetic-interference sources for best signal stability. Inspect connector latches and contacts before insertion and handle the cable by the connector housings to preserve connector integrity.