Seeking Recommendations for Budget-Friendly, Heat-Resistant, Quiet Mini PCs with High Network Capacity to run pfsense

[avivronen]

I'm looking for recommendations for 3 mini computers:

• Very, very tight budget - price is a significant consideration, and import taxes in my country are high.
• They must handle heat well - my country has very high temperatures in the summer and they will be located in a non-air-conditioned area.
• They need to be quiet since they will be near a bedroom.
• They need to be capable of handling many connected devices and substantial network traffic.
• They must be reliable and last without breaking down after a year.

I need around 6 ports - 2 WAN inputs and 4 LAN outputs (5 total is also acceptable). The first model I am looking for should support 1Gb speed. The second model should support 2.5Gb. The third model should support 5 or 10Gb.

I'm overwhelmed by all the models and processors that might fit this, so I'd appreciate recommendations.

Thank you!