Lenovo 3M Passive SFP28 DAC

Experience fast, reliable 25 Gbps connectivity with the Lenovo 3M Passive SFP28 DAC. This 9.84 ft (3.0 m) Direct Attach Copper (DAC) cable delivers high-performance interconnects between SFP28-enabled devices, ensuring low latency, minimal signal loss, and simple, plug-and-play deployment in data center racks. Designed for Lenovo servers, switches, and other SFP28 ports, this passive copper DAC provides a cost-efficient solution for short-reach, high-bandwidth networking without the need for active electronics or external power. As workloads continue to scale and virtualization demands intensify, administrators require dependable cables that minimize downtime and maximize throughput. The Lenovo 3M Passive SFP28 DAC is engineered to meet these needs by delivering a straightforward, robust connection that integrates seamlessly into dense, modern data centers. Its passive design means there are no power requirements on the cable itself, reducing cabling complexity and energy consumption while still offering the performance necessary for modern 25G Ethernet deployments. The result is a reliable, scalable interconnect that supports fast-moving workloads—from database replication and hyper-converged infrastructure to high-speed file transfers and latency-sensitive applications—without introducing unnecessary cost or risk. In practice, this DAC helps data centers lock in stable, predictable performance across multiple devices, helping IT teams simplify provisioning, troubleshooting, and capacity planning. The Lenovo branding also signals a level of interoperability and quality that aligns with enterprise-grade deployments, ensuring broad compatibility with Lenovo ThinkSystem and ThinkAgile solutions as well as a wide range of third-party SFP28-enabled hardware. Whether you’re refreshing an aging fabric or deploying a new 25G network backbone, this cable is designed to deliver dependable links that you can count on day in and day out. The cable’s construction prioritizes durability, with precision-made connectors and shielding designed to minimize electromagnetic interference (EMI) and maintain signal integrity in congested data centers. The 9.84 ft length provides flexibility for a variety of rack layouts, from dense spine-and-leaf designs to compact blade environments, enabling tidy cable management and improved airflow. In short, Lenovo’s 3M Passive SFP28 DAC combines performance, reliability, and ease of use in a compact, economical package, making it an excellent choice for organizations deploying 25G networks across servers, storage systems, and network switches. If you’re seeking a straightforward, high-bandwidth interconnect that minimizes setup complexity while delivering solid, predictable results, this DAC is tailored to meet the demands of modern enterprise IT environments.

• High-performance 25 Gbps SFP28 DAC with passive copper design: The Lenovo 3M Passive SFP28 DAC is built for ultra-low latency and consistent throughput, delivering stable 25 Gbps cross-connects between network devices without requiring external power or active circuitry. This makes it ideal for short-reach interconnects in dense data center racks where speed and reliability are paramount.
• Optimized for short-reach interconnects in data centers: 9.84 ft (3.0 m) length offers flexible cabling between servers, top-of-rack switches, and storage arrays while keeping cable management tidy and reducing airflow disruption. The compact footprint helps keep cabinets organized and improves airflow, which can contribute to cooler operation and lower fan noise in busy environments.
• Fully compatible with SFP28 ports across Lenovo and third-party equipment: The passive DAC adheres to standard SFP28 electrical interfaces, making it a reliable choice for Lenovo ThinkSystem, ThinkAgile platforms, and compatible third-party devices that support 25 Gbps connectivity. Its broad compatibility helps future-proof deployments and simplifies integration with existing infrastructures.
• Durable construction and EMI shielding for robust performance: Built with high-quality materials and shielding to minimize electromagnetic interference and crosstalk, ensuring stable signal integrity in environments with crowded cabling and high device density. The connectors are designed for repeated insertions and removals, supporting routine maintenance and hardware refresh cycles without compromising performance.
• Easy plug-and-play installation with no external power: Simply insert into SFP28 ports on both ends and secure, with hot-swappable compatibility and no power requirements, enabling rapid rack deployment and reduced operational overhead. This straightforward setup minimizes downtime and helps IT teams provision new links quickly during upgrades or expansions.

Technical Details of Lenovo 3M Passive SFP28 DAC

• Cable type: Passive SFP28 Direct Attach Copper (DAC)
• Length: 3.0 m / 9.84 ft
• Data rate: 25 Gbps per link
• Connector: SFP28 on both ends
• Distance support: Short-reach interconnects typical for data center racks
• Impedance/termination: 100 ohms differential (standard for SFP28 DAC cables)
• Compatibility: Lenovo servers, switches, storage, and other SFP28-enabled devices

How to install Lenovo 3M Passive SFP28 DAC

• Identify SFP28 ports on both devices that support 25 Gbps networking and verify compatibility.
• Power down is optional for hot-swappable environments; if in doubt, consult device vendor guidance or perform a controlled power-down as part of scheduled maintenance.
• Carefully align the SFP28 connectors with the corresponding ports and insert until they click into place, ensuring firm seating on both ends.
• Route the cable to avoid sharp bends, kinks, or tension. Use cable organizers to maintain tidy pathways and reduce EMI exposure.
• Power on or resume operation and check link indicators. Verify that both ends establish a stable 25 Gbps connection in your network management interface.

Frequently asked questions

• What is the length of the Lenovo 3M Passive SFP28 DAC? The cable length is 3.0 meters (9.84 feet).
• What speeds does this DAC support? It supports 25 Gbps per link across SFP28 ports, suitable for 25G Ethernet deployments.
• Is this cable passive or active? It is a passive Direct Attach Copper (DAC) cable, requiring no external power.
• Is it compatible with Lenovo devices? Yes, it is designed for Lenovo servers, switches, and other SFP28-enabled devices, and is broadly compatible with standard SFP28 ports.
• Do I need to configure anything after installation? In most cases, no configuration is needed; you may just verify link status and allow the hardware to negotiate at 25 Gbps if supported by devices.