Copper Twinax Direct Attach Cable QSFP28 To QSFP28 For Storage Area Networks

100 Gigabit Direct Attach Twinax Copper Cable Assembly Up to 5m Transmission

Features

• Up to 5m transmission
• Hot-pluggable QSFP28 38 PIN footprint
• I2C based two-wire serial interface for EEPROM signature which can be customized
• Temperature Range: 0~ 70 °C
• Compatible to SFF-8665
• Compliant with IEEE 802.3bj
• Single 3.3V power supply
• Low crosstalk
• RoHS compliant
• Data rate up to 103.125Gbps
• 4-Channel Full-Duplex Passive Copper Cable Transceiver,25.78Gb/s per channel

Applications of 100G QSFP28 Direct Attach Cable

• Telecommunication and wireless infrastructure
• High performance computing
• Low EMI radiation switches, servers and routers
• Medical diagnostics and networking
• Test and measurement equipment
• Storage area networks
• Data center networks

Functional Specification

Description

This QSFP28 to QSFP28 direct attach cable is a high-speed, cost effective alternative that supports to establish a 100-Gigabit link between QSFP-100G ports of switches within racks and across adjacent racks with a maximum reach of 5-meter.

The 100G QSFP28 Passive direct attach cable contains 8 high-speed copper pairs, each operating at data rates of up to 25Gb/s. Each QSFP28 port comprises an EEPROM providing product information, which can be read by the host system.

It has been programmed, uniquely serialized, and data-traffic and application tested to ensure it is 100% compliant and functional.

This Direct Attach Copper is compliant with IEEE 802.3, SFF-8665, and QSFP28 MSA standards.

Ordering Information

High Speed Specifications

Notes:

1. Reflection Coefficient given by equation SDD11(d B) < 16.5 - 2 × SQRT(f ), with finGHz.
2. Reflection Coefficient given by equation SDD11(dB) < 10.66 - 14 × log10(f/5.5), with finGHz.
3. Reflection Coefficient given by equation SCD11(d B) < 22 - (20/25.78)*f, with finGHz.
4. Reflection Coefficient given by equation SCD11(dB) < 15 - (6/25.78)*f, with finGHz.
5. Reflection Coefficient given by equation SCD21(dB) < 27 - (29/22)*f, with finGHz.

Compatibility

All Gigaopto DAC are standards-based and MSA (Multi-Source Agreement) compliant, and rigorously tested and coded in our own facilities to ensure the highest level of performance. We conduct 100% application testing under end-use conditions.

For this 100GBASE QSFP28 to QSFP28 100G Passive Direct-Attach-Cables, please refer to the P/N correspondence table (Fox example in 1M length). For more product compatibility, please feel free to tell us.