Qnap TS-451

[Aian65]

I have an old TS-451. 4 bay nas. I have Unraid 6.11 installed and at this moment Its, transferring my media to it. My external hard drive is connected and I'm transferring my media through Krusader. Transfer rate is 15mb to 30mb speed. Which I think is slow? I be only using this device as an Emby server.

 

My question is this...There is three, four if you include the front USB ports on the device. Can I connect a TR004, which is the 4 bay expansion device from Qnap and connect it? Will Unraid see the drives? Can I add them to the array? If Unraid can see the device do I configure them as JBOD's or configure  them as raid 5? Also if I connect an SSD to one of the USB ports can I then use it as a Cache drive?

 

Any help greatly apprceiated.

Thank You.

Ian.