Skip to content 
100G QSFP28 to 2×50G QSFP28 Passive DAC Breakout Cable
Categories:
Product Highlights:
- 100G QSFP28 to 2×50G QSFP28 breakout
- Two independent 50Gbps connections
- Passive copper design with no additional power
- Low insertion loss and ultra-low crosstalk
- End-to-end assembly tested
- Serial-numbered for traceability
- Cost-effective short-distance 100G/50G connectivity
Table of Contents
Description
The 100G QSFP28 to 2×50G QSFP28 Passive DAC Breakout Cable is a high-speed copper interconnect designed to split a compatible 100Gbps QSFP28 connection into two independent 50Gbps QSFP28 connections. It provides a practical solution for connecting 100G network equipment to two 50G interfaces while eliminating the need for active optical components. The passive copper construction requires no additional power and offers a cost-effective, low-power solution for short-distance high-bandwidth connections. With low insertion loss, ultra-low crosstalk, and end-to-end assembly testing, the cable is well suited for data centers, storage networks, and high-performance computing environments.
Specification
| Main Connector | QSFP28 |
|---|---|
| Breakout Connectors | 2 × QSFP28 |
| Main Interface Speed | Up to 100Gbps |
| Breakout Speed | 2 × 50Gbps |
| Aggregate Data Rate | Up to 100Gbps |
| Breakout Configuration | 1 × 100G to 2 × 50G |
| IEEE Compliance | IEEE 802.3bj |
| Interface Compliance | SFF-8665 |
| Signal Integrity | Ultra-Low Crosstalk |
| Insertion Loss | Low |
| BER | <10?1? under specified test conditions |
| Architecture | Passive Copper |
| Additional Power | Not Required |
| EMI | Low EMI Emission |
| Cable Jacket | LSZH |
| Serial Number | Printed on Each End |
| Testing | End-to-End System Tested |
| RoHS | Compliant |
Features
- QSFP28 to 2×QSFP28 breakout configuration
- Supports 100Gbps to two independent 50Gbps connections
- Passive copper construction
- No additional power consumption
- Low insertion loss
- Ultra-low crosstalk
- High-speed signal integrity for short-distance links
- Serial number assigned at both cable ends
- End-to-end assembly testing for consistent performance
- Cost-effective alternative to active optical interconnects
Applications
- 100G to 2×50G network connections
- Data center server-to-switch connectivity
- Switch-to-switch interconnects
- Storage network connections
- High-performance computing (HPC)
- Network equipment migration and port breakout
- High-density rack deployments
Q&A
What is the purpose of this breakout cable?
The cable divides one compatible 100Gbps QSFP28 port into two independent 50Gbps QSFP28 connections, allowing 100G equipment to connect with two 50G interfaces.
Is this cable active or passive?
It is a passive DAC cable. It uses copper conductors for electrical signal transmission and does not require active optical components or additional power.
Can the two 50G connections operate independently?
Yes. The breakout architecture provides two independent 50Gbps connections, subject to the port configuration and compatibility of the connected network equipment.
What are the advantages of using this DAC instead of two optical links?
For short-distance connections, the passive DAC provides a lower-power and more cost-effective interconnect solution while avoiding the need for separate optical transceivers.
How is cable quality and traceability maintained?
Each cable is assigned a serial number at both ends and tested as a complete end-to-end assembly to help verify performance and maintain production traceability.
Quality Qulifications and Compliance
To get the detailed certification, please go to the Compliance.
Please Note: Our products comply with all internationally recognized and industry-standard specifications. For customized or special requirement products, we carry out testing and standards in accordance with the conformity criteria specified in the contract.
Related Products
Have Questions? Contact Our Product Experts or Sales Team Today! We Will Fedback You Soon.
