25G Direct Attach Cable

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Optcore’s SFP28-25G-DAC-PxM 25G is a hot-swappable & downward compatible (10G, 1G) passive direct attach copper cable assembly (also known as Twinax Cable or DAC) with SFP28 modules at both ends.

SKU: SFP28-25G-DAC-PxM Category:


The 25G SFP28 DAC cable fully complies with SFP28 Multi-Source Agreement (MSA) standards SFF-8402 and SFF-8432 specifications. It is designed for very short reach links in 25Gbps high-speed I/O interconnect applications such as high-performance computing (HPC) and high-density data center.


• Up to 25Gb/s data rate
• Compliant with SFF-8402 and SFF-8432
• Compatible to SFP+ MSA SFF-8431
• Hot-pluggable SFP 20PIN footprint
• Lowest total system EMI solution
• Low insertion loss and low crosstalk
• Single 3.3V power supply
• Operating temperature range: 0 to 70°C
• RoHS Compliant and Lead-Free


  Product Series Direct Attach Copper Twinax Cable   Optcore Part Number SFP28-25G-DAC-PxM
  Form Factor 25G SFP28 DAC   Data Rate 25 Gb/s
  Passive or actively equalized  Passive   Supply Voltage 3.3V
  Cable Length 0.5~5 m   Cable impedance 100 Ω
  Cable Type Twinax   Wire Gauge 24/26/30AWG
  Minimum cable bend radius 35 mm   Cable Jacket Type PVC
  Connector SFP28/SFP28   Digital Diagnostic Monitoring N/A
  Environment Operating: 0°C to 70°C
Storage: -40°C to 85°C
  Weight 0.1~0.4 kg
  Application 25G Ethernet
Data center cabling infrastructure
  Compliance SFF-8402

Additional information

Weight 0.3 kg
Dimensions 25 × 25 × 3 cm
DAC Length



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