Manufacturer s DAC high-speed cable 1G

1G DAC (Direct Attach Copper) cables are high-speed, low-latency, cost-effective solutions for short-reach network connections, available in SFP form factors with passive twinax copper assemblies.

Overview

1G DAC cables are factory-terminated twinax copper cables designed for short-distance, high-speed connections between network devices such as switches, servers, and media converters . They are typically used within the same rack or cabinet, providing a low-cost alternative to optical SFP modules while maintaining high reliability and low latency . These cables are available in passive configurations, meaning they do not contain signal conditioning circuitry, which keeps power consumption low and simplifies installation .

Key Features

• Data Rate: Supports 1Gb Ethernet and 1G Fiber Channel applications .
• Connector Types: Commonly available with SFP to SFP connectors, compatible with 1000BASE-X SFP ports .
• Cable Lengths: Available in multiple lengths, typically ranging from 0.5m to 7m, allowing flexibility for in-rack or short interconnects .
• Performance: Low latency (under 5 ns), high reliability, and bit-error rate ≤ 1 × 10⁻¹² .
• Power Efficiency: Passive DACs consume minimal power, usually below 0.5 W per link .
• Compliance: Meets IEEE 802.3 standards and SFF/MSA specifications for interoperability .

Applications

• Data Centers: Connecting switches, servers, and storage devices within racks.
• High-Density Networking: Ideal for environments requiring high port density and low power consumption.
• Short-Reach Links: Suitable for distances up to 10 meters depending on cable gauge and manufacturer .

Manufacturers and Options

• FS: Offers DAC cables supporting 1G to 800G, with various lengths and high reliability .
• AMG: Provides industrial-grade SFP DAC cables for 1G and 10G Ethernet, compatible with most SFP ports .
• Philisun: Supplies 1G DAC cables with SFP connectors, low latency, and custom length options .
• LightSpeed: Offers 1G SFP DAC Twinax cables in multiple lengths for in-rack connections .

Summary

1G DAC cables are cost-effective, high-performance solutions for short-reach networking, offering low latency, low power consumption, and easy installation. They are widely available from multiple manufacturers with options for custom lengths, SFP connectors, and passive twinax copper assemblies, making them suitable for data centers, server interconnects, and high-density networking environments .