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LR-LINK 25G SFP28 passive DAC cable 3 metres, twinax copper with shielded connectors

LR-LINK

LR-LINK 25G SFP28 Passive DAC Cable 3m

SKU CH-5TTR-YQ92G

A 3-metre passive SFP28 direct-attach copper cable delivering 25 Gb/s bi-directional links with under 0.1 W power draw and IEEE 802.3by compliance

  • Supports 25 Gb/s bi-directional links for high-speed data transfer
  • Power draw under 0.1 watt keeps energy use minimal
  • Compliant with IEEE 802.3 and SFF-8402 standards for broad compatibility
  • Hot-pluggable design enables changes without system downtime
  • Operates from 0 to 70 °C for reliable performance in data centres

25G SFP28 Passive DAC Cable 3m

The LR-LINK SFP28-DAC-3m is a shielded twinax copper cable with SFP28 connectors on both ends. It supports 25 Gb/s bi-directional data links and complies with IEEE 802.3by and SFF-8402 standards. The passive design draws less than .1 watt and operates from a single 3.3 V supply.

Suits 25G links up to 3 metres; not for longer runs

This cable targets data-centre operators and lab builders who need a low-cost, hot-pluggable 25G interconnect between adjacent racks or inside a cabinet. It works with Intel, Mellanox and SICO equipment that accepts passive SFP28 DACs. Buyers who need reaches beyond 3 metres or active signal conditioning should consider optical transceivers instead.

3-metre passive reach at 25G

The 3 metre length defines the maximum distance this passive copper assembly can reliably carry a 25G signal without regeneration. It operates from 0 to 70 °C case temperature and survives storage from -40 to 85 °C. The cable is RoHS compliant and uses AC-coupled inputs and outputs for enhanced EMI performance.

How it compares

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Price $42.99
Pricier than about 82% of the 9,945 comparable items (median $14.99).

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Specifications

No published specifications for this item yet.

Questions about this item

What type of SFP28 ports must my switches or NICs provide for this 3 m passive DAC to operate?

The cable plugs into SFP28 cages that supply a single 3.3 V rail and accept AC-coupled, hot-pluggable modules compliant with SFF-8402.

If I keep 25G SFP28 gear on one end and older 25G SFP28 gear on the other, will the link still come up at the rated speed?

Both ends must support 25 Gb/s bi-directional operation under the IEEE 802.3 by and SFF-8402 specifications; the passive cable itself does not perform rate negotiation.

After cabling, how can I confirm the link is running at the intended 25 Gb/s without errors?

Check the port statistics on each device for a 25 Gb/s link status, zero CRC errors, and case temperature staying within the 0–70 °C operating range.

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