newest revision (May 2024), Full-auto Calibration, Multi-Color Printing (Combo Version), Active Flow Rate Compensation, 1-Clip Quick Swap Nozzle, Active Motor Noise Cancelling, 256 x 256 x 256 mm Build Volume, The upgraded heatbed cable features Kevlar reinforcement, thicker insulation, softer copper, optimized wire winding interval, Nylon sleeving and a extended strain relief