EX 4200 and EX 3200 2-Port 10G XFP Uplink Module (optics sold separately)
Part Number: EX-UM-2XFP
XFP uplink module—Provides two ports for 10-gigabit small form-factor pluggable (XFP) transceivers. The model number of the uplink module is EX-UM-2XFP.