Molex 100GbE QSFP28 (zQSFP+) to 4x 25GbE SFP28 (zSFP+) Passive Direct Attach Copper (DAC) Twinax Breakout Cable 30AWG 2.5 Meter 1003451254

The Molex 1003451254 is a high-performance passive Direct Attach Copper (DAC) breakout cable designed to connect one 100GbE QSFP28 port to four 25GbE SFP28 ports. Built with high-quality 30AWG Twinax copper cable, this assembly delivers reliable, low-latency connectivity for data centers, enterprise networks, cloud environments, and high-performance computing applications.

This cost-effective breakout solution eliminates the need for separate transceivers and fiber cabling for short-distance deployments, making it ideal for Top-of-Rack (ToR) switching and server connectivity.

Key Features

• 100GbE QSFP28 to 4x 25GbE SFP28 breakout configuration
• Passive Direct Attach Copper (DAC) design
• High-performance Twinax copper cable
• 30AWG cable construction
• Supports aggregate data rates up to 100Gbps
• Low latency and low power consumption
• Factory-terminated cable assembly
• Plug-and-play installation
• Ideal for data center and enterprise networking
• Cable length: 2.5 Meters (8.2 ft)
• Molex Part Number: 1003451254

Technical Specifications

• Manufacturer: Molex
• Part Number: 1003451254
• Product Type: Passive DAC Breakout Cable
• Connector A: 1x QSFP28
• Connector B: 4x SFP28
• Data Rate: 100GbE to 4x25GbE
• Cable Type: Twinax Copper
• Wire Gauge: 30AWG
• Cable Length: 2.5 Meters
• Impedance: 100 Ohms
• Configuration: Passive
• Connector Style: Plug-to-Plug
• Application: Data Center Networking

Equipment Compatibility

Compatible with networking equipment that supports QSFP28 breakout functionality.

Network Switches

• Cisco Nexus 3000 Series
• Cisco Nexus 9000 Series
• Arista 7000 Series
• Arista 720XP Series
• Dell EMC Networking S-Series
• Dell EMC Networking Z-Series
• Juniper QFX Series
• HPE FlexFabric Series
• NVIDIA Mellanox Spectrum Series
• Supermicro 25G/100G Ethernet Switches

Network Adapters

• NVIDIA Mellanox ConnectX-4
• NVIDIA Mellanox ConnectX-5
• NVIDIA Mellanox ConnectX-6
• Intel 25GbE and 100GbE Adapters
• Broadcom Ethernet Adapters
• Marvell FastLinQ Adapters

Compatible Servers

• Dell PowerEdge Servers
• HPE ProLiant Servers
• Lenovo ThinkSystem Servers
• Cisco UCS Servers
• Supermicro Ultra Servers

Typical Applications

• 100GbE switch uplinks
• 25GbE server connections
• Top-of-Rack switching
• Data center aggregation
• Cloud computing infrastructure
• Storage networking
• High-performance computing (HPC)
• Virtualized server environments

Package Includes

• 1x Molex 1003451254 QSFP28 to 4x SFP28 Passive DAC Breakout Cable
• Length: 2.5 Meters

Important Notes

• Requires QSFP28 breakout support on the switch or network adapter.
• Passive DAC cables are intended for short-range connections within the same rack or between adjacent racks.
• Please verify compatibility with your equipment before purchasing.
• Item may show minor cosmetic wear from normal handling and storage.
• Same-day shipping available on most orders received before the shipping cutoff time.