I will order one of these and make an image for it:
https://www.newegg.com/Product/Product.aspx?Item=N82E16813128975I understand why members are hesitant to try a USB key, cheap USBs are usually terrible: and fast ones are usually expensive.
The Lexar drives I recommend are both fast and cheap. Other members have requested I fully support SSDs again; so I am going to re-add full support for them in a later version.
Currently you will either need to use manual intervention or make some changes to the system or bash files when using an ssd.
Personally I use all Lexar 16gb USBs with my rigs; except one has a Lexar 32gb I got to test. I think they are the better choice over a more expensive ssd.
This is my reasoning:
The 16gb Lexar's I recommend are very fast (watch one of the nvOC demo videos if you don't believe me)
are very cheap: $8
are easy to attach to image then remove and reattach to a rig
vs a regular SSD or HDD allow you to use at least one less cable on your rig.
Finally using a usb key allows users to try nvOC without needing to install over their previous OS (no commitment needed).
Although one could use a sata to usb adapter with an ssd, or any type of usb ssd / adapter (there are a lot) and it would match all the advantages other than cost. I recommend spending $8 on a Lexar 16gb and seeing if it is fast enough for you; if it is (and most likely it is) then you just saved ~$30 per rig.