I have this MacBook Pro 16in 2021 model in Space Gray for sale. It has M1 Max 10-core CPU and 24-core GPU, 64GB Ram and 1 TB SSD. It is covered under Apple standard warranty till 08/08/2023. 

The only issue is that this MacBook is enrolled in an MDM service. I have bypassed the MDM and now there is no MDM profile installed on it and it is fully functional just like any other MacBook Pro 16in purchased from Apple Store directly. It is brand new with battery cycle 2. I just opened the box to perform the bypass process. The listing includes the MacBook itself and the original charger in its original retail box. 

If you would like to factory reset this MacBook, you need to bypass it again. Please google for instructions to bypass MDM. The current MacOS on this MacBook is Monterey and the online MDM bypass instructions are currently for Monterey only. Thanks for looking.