Raspberry Pi 4 Model B: 2GB ram version Used, but guarantee to work. The board was put in Vilros heavy-duty aluminum alloy case since day 1. The high quality case shows some wear-n-tear. But it protects the board solid! Also comes with cooling fan, quiet and effectively dissipate heats. The case alone was $15. I only ask for $49.99 for both the board and the case assembled. You can use Raspberry Pi to do a lot of interesting things. We make VPN software for all kinds of single board computers including Raspberry Pi boards. This sale will come with free VPN WiFi router software on MicroSD card. There is 30-day free VPN services included. Highlights of our VPN Software Service: 10 servers at various countries to choose ( 5 IPv6 + 5 IPv4 servers), plug-and-play, zero configuration needed. no bandwidth limit, never log any internet activity. Contact us for more information.