SFP-DD Passive DAC Cable

Volex’s SFP-DD passive Direct Attach Copper cable features 2 transmitting and 2 receiving PAM4 channels supporting 100G Ethernet (2x 50Gb/s) and 2x 64G Fibre Channel applications. The Volex SFP-DD cable assembly meets IEEE 802.cd and 64GFC standards with substantial signal integrity margin providing high performance and bandwidth interconnect solutions for next generation data centre needs.

As data centres grow and deploy faster speed in a tighter space, they need high performance cables that have less power consumption, reliable operation, are low cost and can be supplied fast in large quantities. By partnering with Volex on SFP-DD and other high-speed cables, today’s data centres benefit from Volex’s global manufacturing footprint and technical expertise to help future-proof their data centre and fulfil infrastructure development goals.

SFP-DD Passive DAC Cable Product Highlights

  • Near zero power consumption and no heat generated
  • Complete cable assembly uniquely terminated at the factory to provide the most reliable operation
  • 100% tested for signal integrity with serial number traceability

SFP-DD Passive DAC Cable Features and Specifications

Product Type SFP-DD to SFP-DD passive direct attach copper cable
Conductor Treatment Laser stripped conductors
Cable Type High-speed twinax cable, 4-pair differential, 100 +/-5 ohms
Cable Colour Black
Cable Jacket PVC
Packaging PE bag
Power Supply Voltage 3.3V
Temperature Range 0 – 70o C
Retention Force Minimum 90N per SFP-DD Hardware Specification
Insertion Force Maximum 40N per SFP-DD Hardware Specification
Extraction Force Maximum 30N per SFP-DD Hardware Specification
EEPROM Each connector module contains an EEPROM to provide product information to the host system
Cable Termination 100% factory tested including comprehensive signal integrity verification and serial number traceability using advanced Manufacturing Execution Systems
Volex reserves the right to change specifications and availability without prior notice.

SFP-DD Passive DAC Cable Applications

  • Switches, Servers, Routers, Storage Arrays
  • Networking Equipment
  • Data Centres
  • Storage Area Networks
  • Telecom Central Offices (CO)
  • Test and Measurement Equipment

Standards Compliance of SFP-DD Passive DAC Cable

  • IEEE P802.3cd
  • INCITS 64GFC (Fibre Channel)
  • SFP-DD Hardware Specification
  • SFF-8431, SFF-8432, SFF-8472, SFF-8636
  • EIA-364
  • UL 94, 1581, VW1
  • RoHS

SFP-DD Passive DAC Cable Mechanical Drawings

Volex Product Page for SFP-DD Passive DAC Cable

SFP-DD Passive DAC Cable Product Dimensions

Volex P/N

Cable Length
Cable Gauge
Cable OD


0.50 30 5.5
DD50PDG10BS 1.00 30



1.50 28 6.6
DD58PDG20BS 2.00 28



2.50 28 6.6
DD56PDG30BS 3.00 26


0.5-3m lengths available with 26-30 AWG conductor sizes to achieve maximum performance. Options Available:

  • Low Smoke, Zero Halogen (LSZH) jackets
  • Custom colours for pull tab
  • Custom EEPROM mapping

Contact Volex for SFP-DD Passive DAC Cable

Contact Volex for further assistance with external SFP-DD passive direct attach copper cable.