"OP" means it's optical and so includes an optical MMF 10Gbe SFP.
"CU" means it uses copper Twinax SR (Short reach) DAC (Direct attach copper) and is essentially the same card without an SFP, the copper Twinax DAC cable plugs straight into the card where the optical SFP would be.
Alp Arslan
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Posted October 18th, 2017 02:00
Can you please give me SFP part # for CU.
is it possible to add any vendor SFP inside CU module?