Foundry Brocade FLS-1XG 10GbE XFP-Based for FLS624 FLS648 switch Brocade Foundry FLS-1XG 10 Gigabit Ethernet XFP Module - 1 x 10GBase-X The 10 Gigabit Ethernet XFP Module is an optional field-pluggable module supporting one XFP port.The XFP port is configurable with a range of XFP transceivers including SR, LR, ER, ZR, and ZRD optics.This port may also be configured with a pluggable CX4 XFP copper transceiver. Compatible with the Brocade Fastiron LS Switch Series