TIFNEX catalog

Active copper and AEC

Active copper and AEC cables that extend copper reach at 400G and 800G.

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  • 40+Platforms supported
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Speed
Form factor
Compatible brand
Reach
Cable length

Showing 1–12 of 96 results

1m (3ft) Arista Networks Compatible 400G QSFP112 4 x 100G PAM4 Active Electrical Cable

In stock

SKU: TFX-03381
Speed400G
Form factorQSFP112
Reach1m
Cable length1m
Compatible brandArista

1m (3ft) Cisco Compatible 25G SFP28 Active Direct Attach Copper Twinax Cable

In stock

SKU: TFX-03401
Speed25G
Form factorSFP28
Reach1m
Cable length1m
Compatible brandCisco

1m (3ft) Dell Compatible 25G SFP28 Active Direct Attach Copper Twinax Cable

In stock

SKU: TFX-03424
Speed25G
Form factorSFP28
Reach1m
Cable length1m
Compatible brandDell

Buying guide

Active copper and AEC from TIFNEX

At 400G and 800G, passive copper reach drops to around 2m to 3m. Active copper cables (ACC) and active electrical cables (AEC) add signal conditioning in the connector to extend copper links to 5m or 7m, keeping the low cost and low power of copper for whole-rack and adjacent-rack links.

TIFNEX supplies QSFP-DD, OSFP, OSFP224, QSFP112 and SFP28/SFP56 active cables coded for NVIDIA, Cisco, Arista, Juniper and Dell. For longer runs, use AOC cables.

Common questions

What is an AEC cable?

An active electrical cable has a retimer chip in each connector that cleans up the signal, allowing copper links of up to about 7m at 400G and 800G.

Do AEC cables use more power than DAC?

Yes, a few watts per end, but still much less than a pair of optical transceivers.

When should I choose AEC over AOC?

For links of 3m to 7m, AEC is usually cheaper and more robust. Beyond 7m, use AOC.

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