Apple(Samsung) 32GB SSPHOTON SSD, Apple p/n 655-1991B. Typically used together with a SATA HDD to make a "Fusion Drive".

In full working order, manufactured in July 2017. 100% health as reported by DriveDx (see photo 5)

All photos are of the actual item offered for sale.

Pulled from a 2017 Retina iMac 5K.

Compatible Apple Mac models (see photo 2 for details and EMC numbers)

A1418 iMac 21.5-inch Late 2013, Mid 2014, Late 2015, Mid 2017 (only models with a Fusion drive or a SSD).
A1419 iMac 27-inch Late 2013.

A1418 Retina 21.5-inch iMac 4K Late 2015, Mid 2017 (only models with a Fusion drive or a SSD).
A1419 Retina 27-inch iMac 5K Late 2014, Mid 2015, Late 2015, Mid 2017.

A2116 Retina 21.5-inch iMac 4K Early 2019 (only models with a Fusion drive or a SSD).
A2115 Retina 27-inch iMac 5K Early 2019.

A1347 Mac Mini Late-2014 (only models with a Fusion Drive - the others need an additional 821-00010-A cable).

Any question, please ask!