how to format usb drive on mac for tesla dashcam

So it was time to investigate some options and run some test and found that I am not a fan of USB to SD card adapters. Too hot for my liking and I did't like how it stuck out of the USB port, could be prone to accidental breakage when using the storage space. It gave no errors for TeslaCam with 1 day of driving around, but ran too hot. DD ran about 11MB/s writes and 78 MB/s read. I converted it to MBR and reformatted FAT32. So I check this combo with a simple dd test using sequential large blocks and it ran 1.3MB/s. If you want to use a hypervisor, I recommend VMware Workstation (trial) as that is the only one I have found (compared with VirtualBox and HyperV) which allows direct USB access and therefor proper formatting. Unfortunately, nothing on windows compares. I used diskpart (via command line not powershell) to convert between MBR and GPT. For formatting, I use Gparted on a Linux box to format large devices with FAT32. There are a number of tools that I use verify this are a combination off dd command on a linux box or Crystal DiskMark for Windows. Unfortunately, this combo above only worked for a few minutes before I got the dreaded too slow error. Trying to reuse some hardware laying around. (Note that most SSD cards/ USB drives come formatted as MBR with FAT32 or exFAT if greater than 32GB). I had read on forums that GPT was better than MBR in terms of partition choice.

I started with a Transcend 256GB JetDrive that I used to use on my Mac with a Trancend USB 3.0 Card reader. I have been testing a few different combinations of recording device options and I can share some results.

How to format usb drive on mac for tesla dashcam