56G QSFP+ Passive Dac Mellanox Compatible

Technical Specification: 56G QSFP+ Passive Direct Attach Copper (DAC) Cable – Mellanox Compatible

Product Overview

This is a high-performance, passive Twinax copper cable with QSFP+ connectors on both ends, fully compatible with Mellanox and other major vendor QSFP+ ports. It reliably supports 56 Gbps (aggregated) data rates over short distances, making it ideal for high-speed InfiniBand and Ethernet interconnects in data centers.

Key Features

• Connector Type: QSFP+ ↔ QSFP+ (SFF‑8436 compliant)
• Aggregate Data Rate: Up to 56 Gbps (4 × ~14 Gbps NRZ channels)
• Wire Gauge (AWG): 30 AWG (short lengths); 28 AWG or 26 AWG for longer runs
• Length Options: 0.5 m to 6 m (typical)
• Maximum Reach: Up to approx. 7 m for passive variants
• Operating Voltage: 3.3 V
• Operating Temperature: 0 °C to 70 °C (commercial grade)
• Compliance & Standards: SFF‑8436, InfiniBand 4X FDR, IEEE P802.3by, RoHS
• Material & Build: Twinax copper with solid conductor, silver-plated, PVC jacket
• Power Consumption: Negligible (approx. <0.1 W per side)
• Minimum Bend Radius: ~30 mm (for 1‑2 m lengths); ~26 mm for longer options
• Digital Diagnostics (DDM/DOM): Not supported on passive models

Performance & Specifications

Applications

• InfiniBand FDR (56G) interconnects in high-performance computing (HPC) and enterprise networks
• 56GBASE Ethernet short-reach links in data centers
• Top-of-rack (ToR) or within-rack switch-to-switch QSFP+ deployments
• Ideal where ultra-low latency and cost-effective copper interconnect are preferred over fiber

Why Choose Swedish Telecom Opto?

✅ European-based support & logistics
✅ Full multi-vendor compatibility
✅ Extensive QA testing with performance reports
✅ Customized stock for projects and repeat supply
✅ 100% verified and coded
✅ Lower cost – no brand tax
✅ Trusted since 2004

Need a Quote or Sample?

This module is available in volume or with custom tuning.

👉 Request a quote or contact our optical team today:
📧 sales@swedishtelecomopto.com