As per Spare part list I see that 1Gb iSCSI SFP product ID : C8S75B
https://partsurfer.hpe.com/Search.aspx?SearchText=C8S75B
You can check details from below link as well,
https://support.hpe.com/hpsc/doc/public/display?docId=emr_na-a00017820en_us#N10110
Not sure what is C8S75B-C because this is not recognized in HPE Partsurfer website to check for Spare part number
May be you can check with the seller or check physically and share the HPE Spare part number printed on the SFP. It should be 876145-001
Hope this helps!
Regards
Subhajit
I am an HPE employee
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