480Mhz ARM Cortex-M7 BIGTREETECH SKR 3 EZ uses a 32-bit ARM Cortex-M7 series STM32H743VI chip with a core frequency of 480MHz, providing enough performance to handle even the most demanding user interfaces while enabling stutter-free printing. Higher Motor Driver Voltage - Faster print speeds The motor driver voltage of up to 48V can be set using jumpers. However, 48V is only supported when using TMC5160 Pro drivers. SKR 3 EZ compared to SKR 3 Function SKR 3 EZ SKR 3 Core frequency 480MHz 480MHz Output current 5A 5A Fan interfaces 3 CNC fans, 3 normal fans 3 CNC fans., 2 normal fans Motor voltage DC12V-DC48V DC12V-DC24V Supported Drivers EZ5160/2209/2208/2225/2226/2130/6609 TMC5160/2209/2225/2226/2208/2130 TMC5160/2209/2225/2226/2208/2130/ST820 LV8729, DRV8825, A4988, etc. EZ driver support Yes No Optional CNC fan voltage Yes Yes