40G QSFP+ to QSFP+ Passive DAC Cable

Technical Specification: 40 G QSFP+ to QSFP+ Passive Direct Attach Copper Cable (DAC)

Product Overview

A high-performance, ultra-low-latency passive Twinax copper cable featuring QSFP+ connectors on both ends. Designed for short-range 40 Gigabit Ethernet applications, it provides a streamlined and cost-effective link between QSFP+ ports in data center environments.

Key Features

• Cable Type: Passive Twinax Copper (DAC)
• Connectors: QSFP+ to QSFP+ (Quad SFP+) — compliant with QSFP+ MSA (SFF‑8436) (Amazon, ATGBICS, Wikipedia)
• Data Rate: Supports up to 40 Gbps aggregate (4 × 10 Gbps lanes); each channel handles 1–10.3 Gbps (img-en.fs.com)
• Wire Gauge Options: Typically AWG 30, 26, or 24 depending on length (img-en.fs.com)
• Maximum Reach: Up to approximately 5 m for passive copper variants (img-en.fs.com)
• Minimum Bend Radius: Approximately 33 mm (qsfptek.com)
• Power Consumption: Essentially negligible—passive assemblies draw minimal power (swedishtelecomopto.com)
• Compliance Standards: IEEE 802.3ba (40GBASE-CR4), QSFP+ MSA, RoHS, CE (Wikipedia)

Performance & Specifications

Applications

• High-density 40GBASE‑CR4 connections in top-of-rack or server-rack setups
• Low-cost, low-power, high-throughput solutions for data center interconnects
• Infrastructure where simple QSFP+ connections without fiber optics are preferred

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