Brilliant greatly appreciated it. I have changed the SSD as I have a voucher for a local store...Just same mac and Nvme model here. Woeks li9ke a champ, with an adaptor. Those in the pictures are right.
This is the one I bought
OLVINS Tarjeta adaptadora SSD NGFF M.2 nVME actualizar para MacBook Air A1465 A1466 (año 2013-2016) y para Mac Pro (año 2013-2015 tardío)
OLVINS Tarjeta adaptadora SSD NGFF M.2 nVME actualizar para MacBook Air A1465 A1466 (año 2013-2016) y para Mac Pro (año 2013-2015 tardío)www.amazon.es
An advice. Install ssdpmEnabler, you will save a lot of power=hours of autonomy.
GitHub - kvic-z/SsdPmEnabler
Contribute to kvic-z/SsdPmEnabler development by creating an account on GitHub.github.com
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So im going with that.
Thanks again.