I/O Ports and Slots: 

• 32x 10/100/1000BASE-T PoE+ ports
• 16x 10/100/1000/2500BASE-T PoE+ ports
• 6x 1G/10G SFP+ ports
• 1x RJ-45 console port
• 1x RJ-45 out-of-band (OOB) Ethernet management port
• 1x USB Type-A Host port

Power Supplies:

• Fixed power supply 
• Up to 750 W Class 4 PoE power

Memory and Processor:

• ARM 1.25 GHz
• 2 GB DRAM (RAM)
• 8 GB Flash (ROM)

Dimensions:

• (H) 4.45 cm
• (W) 44.19 cm
• (D) 36.83 cm
• (17.4" x 1.75" x 14.5") 
• 6.5 kg (14.33 lbs)

Performance:

• System switching capacity: 152 Gbps
• System throughput: 154 Mpps

Environmental:

• Operating temperature: 0° to 45° C (32° to 113° F)
• Storage temperature: -40° to 70° C (-40° to 158° F)
• Operating altitude: up to 3962 m (13,000 ft) at 40° C, per GR-63
• Storage altitude: up to 4572 m (15,000 ft)
• Operating relative humidity: 10% to 85% (non-condensing)
• Storage relative humidity: 0% to 95% (non-condensing)

https://www.juniper.net/us/en/products/switches/ex-series/ex2300-ethernet-switch-datasheet.html