BIGTREETECH Octopus Pro V1.1 H723 32bit Control Board 550MHz Support 8 Axis Stepper Motor Drivers TMC2209 Klipper/Marlin High-Speed/Voltage Printing Support Raspberry-Pi Octprint Operating Systems

Great product. I am deducting one star for the terrible documentation of a product change between versions.Make sure you read the GitHub read me for this board that tells you that some pin designations have been changed for the H723 v1.1 and they do not match the screen printing, manual or pinout.

I have used the BTT products and specifically the Octopus for all my Voron printers. It's an absolute tank of a controller board.

I bought this board to build a custom 3d printer. I'd researched for weeks on the "best" replacement boards and this one was always at the top of the list. It was delivered as promised, in beautiful packaging, with ZERO instructions. None. There's a piece of paper that says to go to their GitHub, Discord or F**ebook page. What if I don't use Discord or Facebook? Well, despite this board having dozens of options, hundreds of connectors, jumpers and headers, the "user manual" is 8 pages of useless information. Both the GitHub location and the "user manual" indicate that some drawings (very important power-related jumper settings) might be wrong. I had questions, so I tried the Discord - no answers. I tried multiple emails - no replies. After complete frustration set in, I tried Facebook. I was berated and bullied by several members (including an admin) for asking questions too "aggressively". Still no answers, though. Not a one. TLDR; buy this product ONLY if you have 100% confidence that you know how to configure and connect it because there will be no help from the people that make it. BTT has already warned me that they're going to bully and shame me some more, using my Facebook posts, if I posted an honest review. So, that's who you'd be dealing with if you need help with this or any other BigTreeTech product. They'll never get another dime from me and whoever's reading this should reconsider, as well.

That's the best controller board so far. The first one was partly dead because the USB-C port was dead, but Jeff replaced it no questions asked.Great service Jeff, keep it up.

Tends to overheat in a hot garage without excessive cooling (read: 1000cfm room fan). I have had several fail in different ways. Tend to blow out individual circuits rather than kill the whole board, but often there is only one built in redundancy before you render the board useless (looking at you, heater circuits).

You really have to have good understanding of the hardware and programming to utilize this board to its fullest. I have purchased three to replace all of my controllers in my CNC equipment.

Are you serious enough about 3d printing that you wanna bump the game up to life threatening stepper voltages? Then this is your huckleberry because you can. Wanna dabble in 5 axis printing? Why not. Do it.

These boards suck! 3 different octopus pro boards and all bad. The spi is bad on all three, one the usb is bad and one restarts by itself. Amazon won’t let you return something twice so I am out quite a bit and no working board! There has to be something better!