CMS 512GB SATA 6GB/s 2.5" Internal SSD Compatible with Dell Inspiron 15 (5565), Inspiron 15 (5566), Inspiron 15 (5567) - C100

SSD's are the modern version of the HDD or Hard Drive Disk. They do not rely on laser disks to read information and as such are able to read and write data at much faster speeds while saving power. They are more compact and are able to run on most modern DDR3 and DDR4 computers.