240GB WD  in Retail Package 3D NAND internal Solid State Drive SSD 
If you’re looking to replace that HDD of yours with an SSD, this SSD is built with next-generation QLC 3D NAND Flash to offer amazing value and great performance. 

Features : 3D QLC NAND Flash for higher affordability Advanced hardware LDPC ECC technology Supports SLC Caching for improved performance Free software: SSD Toolbox and Migration Utility