BIQU BIGTREETECH EZ2209 V1.0 Stepper Motor Driver 5PCS Stepstick Mute EZ2209 Compatible with SKR 3 EZ Manta E3 EZ 3D Printer Controller Main Boards

First pack I received, three of the five were dead on arrival. Returned and received a new set of five and all worked great. Caveat, the Big Treeetech SKR3 EZ motherboard that I purchased with this came faulty and I had to return it too for a replacement, so, I'm not sure if the dead steppers were due to the faulty motherboard or were the steppers themselves. The above aside, these are solid steppers that are no hassle / easy to install.

I love the simplicity of the EZ platform. They are compatible with other boards that can use 2209 stepper drivers with an available adapter, but know that doing so makes them quite tall. Configuration is straightforward in marlin.You can plug them in backwards, while they are keyed, the key is the edge of the pcb, so take care and pay attention when installing them as to not short out pins in the socket.

They are standups as opposed to lying down, thus saving board real estate. They are unable to seat improperly and cause harm to the mainboard. They come with built-in heatsinks. Good little modular guys.

Went to get my custom printer running only to find out that I got a bad driver right from the get go. Now I’m stuck waiting another two days before I can get it running. Extremely disappointed by this! I had a job that needed to start in the morning. Now I have to tell my customer their parts will be late. Who tests these things!!