Pi-Hole Ad Blocking Kit based on Raspberry Pi 3B. This unit becomes your local DNS server and is an advertisement sinkhole that protects your devices from unwanted content, without installing any client-side software. Since advertisements are blocked before they are downloaded your network performance is improved and will feel faster. Pi-Hole cannot block EVERY ad, but with a database of 114,977 domains on the block list this device will improve the security and performance of your network. The kit Includes the Following: Raspberry Pi 3 Model B Single Board Computer Custom 3D Printed Case in Red 16GB Micro SD card Preloaded with Raspbian (includes a pihole shortcut for easy 1-click installation from the desktop) UL Certified 2.5 Amp USB Power Supply with Micro USB Cable and ON/OFF Switch & Noise Filter - Designed specifically for the Raspberry Pi Red 3-foot (1m) Ethernet Cable for connection via Ethernet (Wi-Fi is also an option for those who would prefer) 5 ft High speed HDMI Cable. Important:A keyboard & mouse (not included) are required for initial set up. Once configured the Pi-Hole server is managed via a web browser from almost any device.