Ram Kingston 4 GB DDR4 For Laptop

sp ssd HDD Laptop Silicon Power 512GB A55 3D NAND SSD

Storage Technology SSD (Solid State Drive)
Capacity 512 GB
Data Transfer up to 560MB/s Read and 530MB/s Write
Interface SATA Rev. 3.0 (6Gb/s) – with backwards compatibility to SATA Rev. 2.0 (3Gb/s)