Fibre Channel Option # Manufacturing Part # Description Previous Part # SG-XPCI1FC-EM4-Z 375-3398 [C] 4Gb PCI-X Single FC Host Adapter, n/a SG-XPCI1FC-QF4 375-3354 [C] 4Gb PCI-X Single FC Host Adapter, n/a SG-XPCI2FC-EM4-Z 375-3399 [C] 4Gb PCI-X Dual FC Host Adapter, n/a SG-XPCI2FC-QF4 375-3294 [C] 4Gb PCI-X Dual FC Host Adapter, n/a SG-XPCIE1FC-EM4 375-3396 [C] 4Gigabit/Sec PCI Express Single FC Host Adapter, n/a SG-XPCIE1FC-QF4 375-3355 [C] 4Gigabit/Sec PCI Express Single FC Host Adapter, n/a SG-XPCIE2FC-EM4 375-3397 [C] 4Gigabit/Sec PCI Express Dual FC Host Adapter, n/a SG-XPCIE2FC-QF4 375-3356 [C] 4Gigabit/Sec PCI Express Dual FC Host Adapter, n/a SG-XPCI1FC-EM2 [S] 375-3304 [C] 2Gb PCI-X Single FC Host Adapter, n/a SG-XPCI1FC-QL2 [S] 375-3383 [C] 2Gb PCI-X Single FC Host Adapter, n/a SG-XPCI2FC-EM2 [S] 375-3305 [C] 2Gb PCI-X Dual FC Host Adapter, n/a SG-XPCI2FC-QF2-Z [S] 375-3363 [C] 2Gb PCI/PCI-X Dual FC Host Adapter, n/a ?240-4839 ?Low Profile Bracket, n/a