
The biggest improvement you can make to a traditional (read off) Mac or Windows computer is to upgrade to an SSD. With OWC's internal SSD kit, you can add an SSD to a standard hard drive and still keep the DVD drive. Boot from the SSD and it's like a new computer. The facility is not for the faint of heart. Feasible with the right tools and workspace, but my local Apple dealer did the installation for a reasonable fee.

M.2 Screw Kit: Easy Mounting for NVMe SSDs on ASUS Motherboards
19 Review

π₯οΈ Helifouner 450-Piece Computer Standoffs Spacer Screws Kit: Ideal for Hard Drive, Motherboard, Fan, Power Graphics & Computer Cases
10 Review

π§ Premium Repair Replacement Screws & Tools for MacBook Pro Retina 15"/13" - Complete Bottom Case Set
10 Review

36-Pack Black Rubber PC CPU/Case Fan Screws/Rivets Set for Computer
11 Review