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SD card instead of thumb drive for Sentry mode

SD card instead of thumb drive for Sentry mode

On recent Ride the lightning podcast, Ryan recommended an SD card.
But this requires a different formatting for larger drives.
Anyone have a recommended program for doing this?
I know that FAT32 is for small drives only

EVRider | November 21, 2019

There’s no difference between formatting USB drives and microSD drives, or any other drive for that matter. Both come in sizes larger than 32GB, and both can be formatted as FAT32 regardless of size. Windows can’t format drives larger than 32GB as FAT32, but there are third-party Windows utilities that can. macOS can format larger drives as FAT32 without additional utilities.

Frank99 | November 21, 2019

Teslatap wrote up a comprehensive guide:
https://teslatap.com/articles/usb-flash-drives-for-tesla-dashcam-old/
tl;dr: guiformat.exe lets you format large drives as Fat32 on Windows; Linux and MacOS can do it with native tools. USB Flash drives will eventually wear out (6 months to 2 years); endurance-rated SD cards will last much longer (5-10 years). You can't (well, I couldn't) partition USB Flash Drives or SD cards into usable(*) music/Teslacam partitions, but you can partition USB attached SSDs that way.

(*) Usable - can plug it into a PC and see both partitions to be able to view videos and update music without changing the active partition.

EVRider | November 21, 2019

TeslaTap replaced the old article with this site: https://cammem.com

Lubdub | November 21, 2019

Great info. Thanks

LeelooTheM3 | November 21, 2019

I recommend it. Since I switch to the SD card I’ve had zero issues. I was having issues previously with a USB.

SqueekJ | November 21, 2019

I also burned through a few flash drives. I have had zero issues since switching to a high duty SD card.

jrweiss98020 | November 22, 2019

Newegg has a Patriot Burst 480 GB SSD on sale for $50. The SSD should be WAY faster than any flash drive or SD card, has a 425 TBW write capacity (~885 full erase cycles), <2W power consumption, and a 3-year warranty.

jrweiss98020 | November 22, 2019

BTW, USB3-SATA adapters can be bought for $10 or less.

EVRider | November 22, 2019

@jrweiss98020: SSD drives are not typically designed for the temperature extremes inside a vehicle. The speed is limited by the USB port, so it doesn't matter how fast the drive is, as long as it's fast enough. microSD cards are designed for dashcams (among other uses) and are very temperature tolerant, so that's a better option.

jrweiss98020 | November 22, 2019

Rated for 0-70°C, so it will be fine for my use. My garage doesn't get below 5°C, and the Climate Control keeps it below 45°C or so when parked....

How many SD cards are rated for <0°C?

EVRider | November 23, 2019

Don’t know how many, but the first one I looked at (Western Digital Purple microSD) is rated for -25 to 85C, and I’m guessing that’s not unusual.

TeslaTap.com | November 23, 2019

Most micro SD cards I've found are rated -13F to 185F. Here's a list of all sorts of SSDs, Flash drives and Micro SD cards and adapters with temps when known: https://cammem.com/tesla/recommendations/

jrweiss98020 | November 23, 2019

Just found the Samsung Bar Plus USB Flash drive. "Only" 256 GB (so far), but great specs and 5-year warranty:

https://www.newegg.com/samsung-model-muf-256be3-am-256gb/p/N82E168201477...

waterproof¹, shock-proof², temperature-proof³, magnet-proof4, and X-ray-proof5 body.

Up to 72 hrs in seawater.
Up to 1,500 gravitational acceleration.
Withstands -25°C to 85°C operating, -40°C to 85°C non-operating
Up to 15,000 gauss (equal to MRI).
Up to 50 Roentgen (equal to airport X-ray machines).