25G SFP28 DACs are best suited for short-reach connections within the same rack or between adjacent racks. They offer lower cost, lower power consumption, and true plug-and-play deployment. When the link distance is within the supported range of the DAC (typically ≤5 m) and there is no high requirement for cabling flexibility, a DAC is a more economical and efficient choice. For longer distances, cross-row cabling, or applications requiring higher cable flexibility, optical transceivers with fiber are the preferred solution.

by FS.com on 12/17/2025

Yes, this DAC will work well with Mellanox MSN2010-CB2F.

by FS.com on 12/13/2025

Yes, we have conducted extensive testing to ensure its compatibility.

by D***n on 08/25/2023

I chose the Mellanox compatibility, it works normally on my Mellanox ConnectX network card.

by R***h on 04/29/2021

No, it can’t be used in the stack port of your device. FS DAC & AOC can only be used in the business port of the switch to achieve virtual stacking, but can not be used in the stack port to achieve physical stacking. The stacking through the stack port of device belongs to physical stacking which needs a specific stacking cable, and it is under development for now.

by E***n on 11/24/2020