The Raspberry Pi is a wonderful platform for learning electronics. You can easily use it as an affordable computer for your projects. The Element14 Desktop Enclosure for Raspberry Pi can help. It turns your Pi into a mini computer. You get an on/off power switch, mSATA SSD socket for up to 1TB of on-board storage, heat sink, and built-in RTC plus battery.
This enclosure is compatible with Pi 2 and 3. You can use it with Pi computer, USB keyboard, and other peripherals.