Lenovo ThinkSystem TCH 3M Passive DAC SFP Cable

Equipment Overview

The Lenovo ThinkSystem TCH 3M Passive DAC SFP is a 3-meter passive direct-attach copper cable designed for high-speed, low-latency connections between servers and switches within Lenovo ThinkSystem data center environments. This SFP+ cable assembly enables point-to-point links at data rates up to 10 Gbit/s, making it suitable for top-of-rack and middle-of-row network topologies. The passive design requires no external power and provides a cost-effective, reliable interconnect solution for enterprise IT infrastructure.

Main Parameters

• Cable Type: Passive direct-attach copper (DAC) SFP+
• Length: 3 meters
• Data Transfer Rate: Up to 10 Gbit/s
• Connectors: SFP+ on both ends
• Compatibility: Lenovo ThinkSystem servers and switches
• Part Number (MPN): TCH-3M-Passive-DAC-SFP
• Alternate Reference: 4X97A09765

Key Advantages

The passive DAC construction eliminates transceiver power consumption and minimizes signal latency, which is critical for high-frequency trading and compute-intensive workloads. The fixed 3-meter length simplifies cable management in standard 19-inch racks, while the SFP+ interface ensures hot-swappable deployment without network downtime. This cable is selected for enterprise projects requiring deterministic performance and low total cost of ownership in dense server-to-switch fabrics.

Compatibility & Integration

The cable is natively supported by Lenovo ThinkSystem server and switch portfolios that feature SFP+ ports, complying with industry-standard 10GBASE-CR and SFF-8431 specifications. It integrates directly into existing Lenovo networking architectures without additional adapters or firmware modifications, ensuring seamless operation in homogeneous Lenovo data center deployments. The passive SFP+ form factor also allows interoperability with other standard SFP+ transceiver slots where passive DAC signaling is accepted.