Hi, That should work, but I wasn’t able to find anything besides QSFP28 to SFP28 that we offer.  Let us know if you have any additional questions.
Hello, Just wondering if its possible to insert a QSA-Q28-S28 adapter into port eth1/1/25 and then insert a 10G SFP so that I can use this port for 10G fibre connection?   If so, is there any config required for the QSA adapter? Thanks
S4148T-ON - Using a 10G SFP+ with a QSA-Q28-S28 adapter