Raspberry Pi controller for Canaan Avalon models including (but not limited to) 721, 741, 821, 841, 921 and others. Please indicate in your purchase which model is needed; also, please provide mining pool preference and account name if you want the controller pre-configured. Appearance of controller (i.e., case model) maybe different than depicted. Controllers are tested for appropriate function prior to shipping.

Note:Please allow minor errors due to manual measurement.

Item color displayed in photos may be showing slightly different since monitors are not calibrated same.

Package Contents:1pc of RPi motherboard assembled in case