I am unable to understand your statement, my bad.The above is where I attach my HDD cabby with normal data ssd. So I will be able to directly use the Samsung evo plus 970 in it, right ?
Ok, So If what @psyph3r said is true and if I understand it clearly, you have a usb to sata casing where you can plug a normal sata sdd.
Now you have a NvME SDD that you want to connect to this caddy and hence you wanted a nvme to sata converter.
Well, in that case as @psyph3r suggested you should buy a NvME to usb casing instead. It's available on Amazon India for around 3K.
Or, for some reason you still want a NvME to SATA adaptor, you can buy this
Buy Online M.2 NVMe SSD to U.2 2.5 inch NVMe SSD Adapter In India At Best Price. Delivery within 48 Hours Any Where In India.www.onlyssd.com
That ssd will be used in ho laptop for some time then it will be used back to a nvme slot. So nvme ssd instead of a sata ssd.Thing is even the external USB interface I linked to will only give you a third of the speed when used through USB unless connected using thunderbolt, you'll only get those 3k+ MBps read/write speeds only when using an NVMe port.
Also NVMe drive performance is barely noticeable over the usual mainstream SATA SSDs for the casual user, yes your PC will wake up from sleep almost immediately and your boot time will be a couple of seconds faster but unless you work with extremely large files constantly there's no benefit whatsoever.
Why will you be moving your NVMe drive from the desktop ? using a 970 in a 2017 Pavilion makes no sense and is a waste of money.