Pre-built computer?

[JTF801]

Out of curiosity would this refurbished computer work for FreeNAS?
https://m.newegg.com/product/index?itemnumber=9SIA5YV4ZT5210
If so I would replace ram with ecc ram and I already have a powersupply.

 

[m0nkey_]

The Lenovo TS140 is a better option and known to work well with FreeNAS: https://www.newegg.com/Product/Product.aspx?Item=9SIA6R45946412

 

[DrKK]

The Lenovo TS140 is a better option and known to work well with FreeNAS: https://www.newegg.com/Product/Product.aspx?Item=9SIA6R45946412

I agree with M0nkey. However, as equipped, you're only getting 4GB of ECC RAM with that refurb box. You'll want to go up to 8GB in 99% of cases.
At least 8GB.