Juniper EX4300 Series Hardware Manual page 26

Table 3: Components in 48-Port EX4300 Switches
Switch Models Built-In Ports
EX4300-48MP- 24 10/100/
S 1000BASE-T
Ethernet network
ports, 24
100/1000/
2500/5000/
10000BASE-T
Ethernet network
ports, and four
built-in QSFP+
ports that can
house 40-Gigabit
QSFP+ transceivers
(Continued)
Number Fan Modules
of PoE-
enabled
Ports
48 Fan modules for
this model are
not shipped by
default; you must
order two fan
modules labeled
AIR OUT (AFO)
separately.
Power Supply Supported Uplink
Shipped by Modules
Default
Power supplies 2-port 40-Gigabit
for this model Ethernet QSFP+/
are not shipped 100-Gigabit
by default; you Ethernet QSFP28
must order AC uplink module
power supplies (model number:
separately. EX-UM-2QSFP-
MR) or 4-port 1-
Gigabit Ethernet/
10-Gigabit
Ethernet SFP+
uplink module
(model number:
EX-UM-4SFPP-
MR)
NOTE: The switch
supports the 2-
port 40-Gigabit
Ethernet QSFP+/
100-Gigabit
Ethernet QSFP28
uplink module
(model number:
EX-UM-2QSFP-
MR) from
Junos OS Release
18.4R1 onwards.
Starting in
Junos OS Release
19.3R1, you can
install two 100-
Gigabit Ethernet
QSFP28
transceivers in the
uplink module. In
Junos OS Release
18.4R1 through
Junos OS Release
16