Ender 3 (Printing size 220X220X250mm) Key Features: One-piece structure, Super printing size 220*220*250mm. Safety protected Power supply, reach 110℃ for hotbed in about 5 minutes. Resume printing function can resume prints even after a power outage or lapse occurs. Removable Build Plate to replace reprinting tape and glue, solve warping problem. V1.1.4 Standard Version motherboard,comes with thermal runaway protection Note : the board is only the Standard Version,Not-Silent Ender 3 Pro (Printing size 220X220X250mm) Compared to Ender 3, Ender 3 Pro has been upgraded with a Completely removable and flexible magnetic bed and Brand Meanwell power supply. Ender 3 V2 (Printing size 220X220X250mm) Exquisite Appearance Design Integrated structure: Classic appearance in integrated all-metal.