Compact and Efficient: Exploring the Juniper EX2300-C-12T Switch

The EX2300-C-12T is the data-only version of Juniper's compact, fanless EX2300-C switch: 12 gigabit RJ-45 ports with no PoE and two 10GbE uplinks, in a case under 11 inches wide. The facts below come from Juniper's EX2300 hardware guide. The listing is the EX2300-C-12T, and its PoE sister is the EX2300-C-12P. Juniper's end of sale for the EX2300 line passed on September 30, 2026, and the dates are set out near the end of this page.

At a glance

Built for small spaces

Juniper's hardware guide says the EX2300-C switches have no fans and so no exhaust openings, only vents on the top of the chassis. The PoE models have a heatsink on the rear panel to dissipate heat, and the non-PoE models, this one included, have none. The case is 10.98 in wide, or 18.86 in with the mounting brackets attached, and 9.45 in deep.

The guide documents several ways to mount it: on a desk or other level surface, under a desk with screws, on a wall, and on or under a surface made of ferrous material. It also describes a cable guard to secure connected cables and a security slot on the right panel of the chassis. These matter in a branch office, a retail back room or a clinic where there is no rack.

Ports and uplinks

The front panel has 12 RJ-45 ports at 10/100/1000 Mbps, a management Ethernet port, a USB port, an RJ-45 console port and a mini-USB console port. The two 10-Gigabit uplink ports accept SFP and SFP+ transceivers. You can use them as network ports or configure them as Virtual Chassis ports. Juniper states that up to four EX2300 switches, EX2300-C included, can be joined in a Virtual Chassis and managed as one switch, and that this works only with SFP+ transceivers: a Virtual Chassis cannot be formed with SFP transceivers.

Software

The EX2300 runs Junos OS, which Juniper says provides Layer 2 and Layer 3 switching, routing and security services. The switch can also act as a satellite device in a Junos Fusion Enterprise deployment, which Juniper describes as a way to combine several wiring closets into one logical management platform.

EX2300-C-12T or EX2300-C-12P

The two compact models share the same case style and 12 ports. The difference is power over Ethernet. The EX2300-C-12P supplies PoE and PoE+ on all 12 access ports from a budget of 124 W, and weighs 6.99 lb (3.17 kg). It carries the rear-panel heatsink. The EX2300-C-12T has no PoE. Choose the 12T when the devices on the ports are computers, printers and other equipment with their own power, and the 12P when they are phones, cameras or access points that take power from the switch. Uplink ports do not supply PoE on either model.

Lifecycle

Juniper announced end of life for the EX2300 line on April 30, 2026, in notice TSB107683. End of sale was September 30, 2026, end of engineering is September 30, 2029 and end of support is September 30, 2031. The notice covers the compact 12-port units named on this page, along with the 24-port, 48-port and multigigabit models. The dates are in Juniper EX2300 end of life.

A switch bought now keeps its place on Juniper's support calendar for several years. A tested spare of the same part number is the simplest way to cover a failure. Every unit Townsend ships is tested first, and the whole family is on the Juniper EX2300 page. Need a different EX model? Send the requirement through a quote request.