100G QSFP28 Direct Attach Cables

100 Gigabit Passive Small Form-Factor Cables

Allied Telesis QSFP28 small form-factor direct attach cables are suitable for in-rack connections between QSFP28 ports, on all QSFP28 compatible products. They are ideal for short distances, and provide cost-effective connectivity within a rack, or in racks within close proximity of each other.

QSFP28 Direct Attach Cables

Point to Point cables

Allied Telesis QSFP28 direct attach cables are Point to Point, to provide a simple and cost-effective solution for connecting two QSFP28 ports, and providing high-speed 100 Gbps connectivity.

The cables are terminated at each end with QSFP28 connectors, allowing hot-swappable direct connection to all Allied Telesis products that support QFSP28 ports.

Cables are available in 1 m and 3 m lengths.

The cables are compliant with the standards MSA, SFF-8665 and SFF-8661, ensuring interoperability with other compliant products.


The Allied Telesis QSFP28 Series is fully compliant with industry-standard networking regulations. This allows Allied Telesis QSFP28 modules to be used on any networking equipment which complies with industry standards.

Key Features

  • Compliant with 100GbE Specification IEEE 802.3bj 100GBASE-CR4
  • Compliant with Industry standards MSA, SFF-8665 and SFF-8661
  • Compact size
  • Flexible architecture
  • High port density
  • Hot-swappable
  • MSA compliant
  • Pull-to-release slide latch design
  • QSFP28 straight 100G Ethernet (NRZ)

Hardware Specifications

  • Connector: QSFP28
  • Data Transfer rate: 4x 25.78125Gbps
  • Power Consumption: DC 3.3V, <10mW

Environmental Specifications

  • Operating temperature range:
0°C to 70°C (32°F to 158°F)
  • Storage temperature range:
-20 to 75 (-4 to 167 F)
  • Operating relative humidity range:
5% to 90% (non-condensing)
  • Storage relative humidity range:
5% to 95% non-condensing


    • CE
    • EU RoHS

    Physical Specifications

    • Cable Length:
    • 1 m (-1CU), 3 m (-3CU)
    • Allowable bending radius:
    • 150 mm at base of QSFP28 connector
      100 mm at middle of cable
    • Weight:
    • 150 g (-1CU), 250 g (-3CU)

    100G QSFP28 modules


    1 meter QSFP28 direct attach cable


    3 meter QSFP28 direct attach cable

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    1 x 100G QSFP28 port

    Where 0y =
    01 for 1 year Net Cover support
    05 for 5 year Net Cover support