How to tell the difference between SAS 6G and 12G LSI 9207-4i4e - https://www.broadcom.com/products/storage/host-bus-adapters/sas-9207-4i4e Avago 9300 4i4e - https://www.broadcom.com/products/storage/host-bus-adapters/sas-9300-4i4e
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