Juniper EX4300 Series Hardware Manual page 24

Table 3: Components in 48-Port EX4300 Switches
Switch Models Built-In Ports
EX4300-48MP 24
10/100/1000BASE
-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 Two fan modules;
each with an AIR
OUT (AFO) label.
Power Supply Supported Uplink
Shipped by Modules
Default
A 1400 W AC 2-port 40-Gigabit
power supply Ethernet QSFP+/
with the AIR 100-Gigabit
OUT (AFO) Ethernet QSFP28
label. uplink module
(model number:
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
14