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Blue QSFP28-to-QSFP28 twinax cable, 2 m length, passive copper, pull tabs

Wiitek

Wiitek 100GbE QSFP28 DAC Twinax Cable 2 m

SKU CH-AGYQ-WK56S

A 2-metre passive copper cable that carries 100 GbE between QSFP28 ports while drawing only 3.3 V

  • Length2 m
  • 100 GbE throughput via passive QSFP28 copper link
  • 2 m reach connects switches within and across adjacent racks
  • 30 AWG twinax construction optimised for signal integrity
  • Compliant with IEEE 802.3, SFF-8665 and QSFP28 MSA standards
  • Broad vendor compatibility including Cisco, Ubiquiti, MikroTik and Supermicro

100GbE QSFP28 DAC cable for rack links

This 2 m passive copper cable connects two QSFP28 ports at 100 GbE. It is built for switches and servers inside a rack or across adjacent racks. Compatibility covers Cisco, Ubiquiti, Mikrotik, Netgear, Supermicro and other open-source platforms. The blue pull tab helps identify the link in dense patch panels.

Passive 30 AWG twinax with IEEE 802.3 compliance

The cable uses 30 AWG twinax conductors and meets IEEE 802.3, SFF-8665 and QSFP28 MSA standards. No active electronics are inside, so power draw stays minimal and latency is negligible. A single 3.3 V supply from the port powers the module EEPROM only. RoHS compliance is confirmed by the manufacturer.

Low heat and zero fan noise in operation

Passive construction means the cable itself generates no measurable heat and adds no acoustic noise. The assembly is rated for an operating temperature range of 0 to 70 °C. Power consumption is limited to the module EEPROM draw from the 3.3 V rail. This makes it suitable for high-density deployments where thermal headroom is tight.

Highlights

  • 100 GbE throughput via passive QSFP28 copper link
  • 2 m reach connects switches within and across adjacent racks
  • 30 AWG twinax construction optimised for signal integrity
  • Compliant with IEEE 802.3, SFF-8665 and QSFP28 MSA standards
  • Broad vendor compatibility including Cisco, Ubiquiti, MikroTik and Supermicro

Specifications

Length2 m

Questions about this item

What does the 100 GbE rating mean for actual throughput?

The cable supports a 100 GbE link between two QSFP28 ports, so a switch-to-switch connection can carry up to 100 gigabits per second of Ethernet traffic.

Which standard governs the 100GBASE-CR interface and what distance does it allow?

The cable follows the 100GBASE-CR specification and IEEE 802.3, providing a compliant 2 metre passive copper link between QSFP28 ports.

What physical clearance and power does the QSFP28 connector need?

Each end uses a standard QSFP28 form factor with a blue pull-tab, draws power from the host port's single 3.3 V supply, and operates from 0 to 70 °C.

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