2000: Flexible host connectivity to match diverse client needs with support for 1/10 Gb iSCSI SFP+, 4/8/16 Gb FC, 12 Gb SAS, or 1/10 Gb iSCSI (RJ-45) connectivity.
4000: Flexible host connectivity to match diverse client needs with support for 1/10 Gb iSCSI or 4/8/16 Gb FC, and 12 Gb SAS, 10/25 Gb iSCSI, or 8/16/32 Gb FC connectivity at the same time.