EX-UM-4SFP ( 4x 1G )
EX-UM-2X4SFP SFP+ uplink module ( 10G )
EX-UM-4X4SFP >>>> Uplink Modules in EX4300 Switches ( 4x 10G ) https://www.juniper.net/documentation/en_US/release-independent/junos/topics/reference/specifications/uplink-module-ex4300.html
EX-UM-2X4SFP-M
EX-UM-2XFP