Datasheet
10
Ordering Information
Model Number Name
Switches
1
EX4300-24T 24-port 10/100/1000BASE-T + 350 W AC
PS (QSFP+ DAC for Virtual Chassis ordered
separately)
EX4300-48T 48-port 10/100/1000BASE-T + 350 W AC
PS (QSFP+ DAC for Virtual Chassis ordered
separately)
EX4300-48T-AFI 48-port 10/100/1000BASE-T + 350 W AC
PS (Back-to-front airflow) (QSFP+ DAC for
Virtual Chassis ordered separately)
EX4300-24P 24-port 10/100/1000BASE-T PoE-plus +
715 W AC PS (provides 400 W PoE+ power)
(QSFP+ DAC for Virtual Chassis ordered
separately)
EX4300-48P 48-port 10/100/1000BASE-T PoE-plus +
1,100 W AC PS (provides 800 W PoE+ power)
(QSFP+ DAC for Virtual Chassis ordered
separately)
EX4300-48T-DC 24-port 10/100/1000BASE-T + 450 W DC
PS (QSFP+ DAC for Virtual Chassis ordered
separately)
EX4300-48T-DC-AFI 48-port 10/100/1000BASE-T + 450 W DC
PS (Back-to-front airflow) (QSFP+ DAC for
Virtual Chassis ordered separately)
Mounting Options
EX-4PST-RMK Adjustable 4-post rack-mount kit for
EX4200, EX4300, and EX3200
EX-WMK EX4200, EX4300, and EX3200 wall-mount
kit
EX-RMK Rack Mount Kit for EX2200, EX3200,
EX4200, EX4300 and EX4550
Feature Licenses
2
EX4300-24-EFL Enhanced Feature License (EFL) for EX4300-
24T and EX4300-24P
EX4300-48-EFL Enhanced Feature License (EFL) for EX4300-
48T, EX4300-48T-AFI, EX4300-48T-DC,
EX4300-48T-AFI-DC, and EX4300-48P
switches
EX4300-24-AFL Advanced Feature License (AFL) for EX4300-
24T and EX4300-24P
EX4300-48-AFL Advanced Feature License (AFL) for EX4300-
48T, EX4300-48T-AFI, EX4300-48T-DC,
EX4300-48T-AFI-DC, and EX4300-48P
switches
Uplink Modules
EX-UM-4X4SFP EX4300 4-port 1GbE/10GbE SFP+ Uplink
Module
1
Each switch ships standard with one power supply (including a power cord for the country
to which it is being shipped), RJ-45 cable, RJ-45-to-DB-9 serial port adapter, and a 19” rack-
mount kit. A second power supply is optional to provide resiliency. The appropriate power
cord accompanying that power supply needs to be ordered separately. Virtual Chassis
cables must be ordered separately and can be for any of the optics supported (40GbE DAC
recommended for Virtual Chassis connections).
2
EFL includes license for OSPFv4/v6, PIM-SM/SSM/DM, IGMP v1/v2/v3 and VRF-Lite. AFL
includes license for IS-IS and BGP (EFL needs to be purchased and installed separately
before installing AFL).
Model Number Name
Power Supplies
JPSU-350-AC-AFO EX 4300 350 W AC power supply (power
cord needs to be ordered separately) (Front-
to-back airflow)
JPSU-350-AC-AFI EX 4300 350 W AC power supply with
airflow in (power cord needs to be ordered
separately) (Back-to-front airflow)
JPSU-715-AC-AFO EX 4300 715 W AC power supply (power cord
needs to be ordered separately) (Front-to-
back airflow)
JPSU-1100-AC-AFO EX 4300 1100 W AC power supply (power
cord needs to be ordered separately) (Front-
to-back airflow)
JPSU-550-DC-AFO EX 4300 550 W DC power supply (power
cord needs to be ordered separately) (Front-
to-back airflow)
JPSU-550-DC-AFI EX 4300 550 W DC power supply with air
flow in (power cord needs to be ordered
separately) (Back-to-front airflow)
Pluggable Optics
EX-QSFP-40GE-DAC-
50CM
QSFP+ to QSFP+ 40GbE Direct Attach
Copper (twinax copper cable) 50 cm passive
QFX-QSFP-40G-SR4 QSFP+ 40GBase-SR4 40GbE Optics,
850 nm for up to 150 m transmission on
multimode fiber-optic (MMF)
QFX-QSFP-DAC-1M QSFP+ to QSFP+ 40GbE Direct Attach
Copper (twinax copper cable) 1 m passive
QFX-QSFP-DAC-3M QSFP+ to QSFP+ 40GbE Direct Attach
Copper (twinax copper cable) 3 m passive
EX-SFP-1GE-SX SFP 1000BASE-SX; LC connector; 850 nm;
550 m reach on multimode fiber
EX-SFP-1GE-LX SFP 1000BASE-LX; LC connector; 1,310 nm;
10 km reach on single-mode fiber
EX-SFP-10GE-SR SFP+ 10GBASE-SR; LC connector; 850 nm;
300 m reach on 50 microns multimode fiber;
33 m on 62.5 microns multimode fiber
EX-SFP-10GE-LRM SFP+ 10GBASE-LRM; LC connector; 1,310 nm;
220 m reach on multimode fiber
EX-SFP-10GE-LR SFP+ 10GBASE-LR; LC connector; 1,310 nm;
10 km reach on single-mode fiber
EX-SFP-10GE-DAC-xM SFP+ 10GbE Direct Attach Copper (twinax
copper cable), where “x” denotes 1, 3, 5, or 7
meter lengths
EX-SFP-10GE-ER SFP+ 10GBASE-ER 10GbE Optics, 1,550 nm
for 40 km transmission on single-mode fiber
EX-SFP-10GE-USR SFP+ 10GbE Ultra Short Reach Optics, 850
nm for 10 m on OM1, 20 m on OM2, 100 m on
OM3 multimode fiber
About Juniper Networks
Juniper Networks is in the business of network innovation. From
devices to data centers, from consumers to cloud providers,
Juniper Networks delivers the software, silicon and systems that
transform the experience and economics of networking. The
company serves customers and partners worldwide. Additional
information can be found at www.juniper.net.