Sintech NGFF M.2 NVMe SSD Adapter for MacBook Air 2013 2014 2015 2017 11-inch and 13-inch and MacBook Pro 2013 2014 2015 13-inch and 15-inch. This allows you to use a regular NVMe drive in your MacBook to upgrade your storage. I was using it with a Samsung EVO 970 SSD Asking $10 or best offer obo