Thanks, T900 is too large &old , i want find a 7-10` tablet with thunderblot2 or tb3 for old CCD back like Phase P .
We can find tb2-tb3 adapter & usb3.0A to tb2 adapter, but lack a tb2 female to tb2 female adapter,i search at google but not find one.
#1: Old?! what's 'Old' got to do with it - your proposed back is ~10 years old, why can't the tablet be same generation, if it works perfectly? And will cost just a couple of hundred $ tops, not thousands. Seems a no brainer to me.
#2: Tablets, in the true sense of the word, (iPads etc) are not going to work with Capture One. They have weak processors, that are simply not enough for this. Do your research, or you may waste a lot of time on under powered tablets, that will not work. The Fuji convertibles & like, are proper laptops, with full power. processors. Hence I recommend a convertible, (mine was a Lifebook T5010) that has a full power Intel processor, great storage & RAM, and works perfectly with C1. The screen folds back onto itself, to become a touch screen 'tablet' (pen or finger, depending on the model) Yes it is a bit heavier, but it works They also can be upgraded very easily - SSD drives, batteries, card slots, etc. All
very easily accessed, unlike a sealed & glued modern tablet.
If you want really light weight (long distance backpacking?) and an ultra high res screen, then you are kind of in a bind. Try the Eve V computer with adapters? About $1500+. I use a Surface Pro now, but my back has USB3, so its really easy to connect.
Either way, good luck!