Can I use an 8-port firewall apliance (no expansion) as my Unraid server?

[jang430]

Currently, I've got hold of a firewall appliance, with 8 ports.  (Desktop form factor).  It only has 1 internal msata, or m.2 slot, that has a 64 GB SSD for firewall os.  It does has an expansion port, for SFP or Wifi cards but the expansion port is proprietary.  

 

The hardware is an Atom C3558, 4 core processor.  I was able to successfuly boot Unraid from USB.  Now, I'm wondering if I can use any or all of the 8-ports to connect to my Qnap via iSCSI.  

 

This is what the back looks like.  Others may be able to guess the brand already.

 

 

Any ideas how to use this device?  BTW, the USB there are USB 2.0.

 

I forgot to mention that I have an HP Proliant Microserver, N40L, with 4 HDD bays.  The processor is AMD Turion.  I think that will be slow.  Hence, I prefer using this device, if possible, to connect to my N40L (where the disks will reside).

Edited January 23, 2022 by jang430
additional info