Where to Dispose of Old Hardware - Safely
If you’ve decided that you have old hardware that you don’t want to reuse, sell, donate, or trade in, don’t put it out for the trash truck. Instead, get it to an electronics recycler. Depending upon where you live, you can “eCycle” some of your old equipment at some retail stores, at standalone recyclers, or by shipping the equipment.
The EPA’s “Where Can I Donate or Recycle My Old Computer and Other Electronic Products?” web page provides links to local and national eCycling programs.