Installed new SanDisk 240GB Solid State Drive (SSD) November 2019 https://www.amazon.ca/SanDisk-Plus-240GB-Internal-SDSSDA-240G-G26/dp/B01F9G43WU/ref=cm_cr_arp_d_product_top?ie=UTF8 Drive is way faster than original drive - boots up to user page login in 21 seconds. Running OS X El Capitan 10.11.6 with 2.66 GHz Intel Core 2 Duo. Comes with MacBook Pro power adapters