Ultra Fit USB 3.0: Excessive Heat

Yesterday i tested a few of the “solutions” on this forum on my 64GB’s.

First I attached a heat sensor of my (old) coolermaster aerogate on the side of tha flash drive and put in into a usb 3.0 port on the front of an icy box USB hub / card reader.

The sensor reached a temp of 55°C (131°f) max when reading or writing 40GB of data

Moving the flash drive to a USB 2 port didn’t change the temperature. About 2 degrees. But still very hot. Even using an USB2 extention cable with an “open” connector didn’t change anything.

sandisk ultrafit.png

Even when only idle in a USB port it was about 40-42°C

The idea of this type of flash drive is to keep in stationary in a device (it’s so small you will lose if it’s not permanently attached to something). But it is a battery drain! Tested it on a laptop an on my android tablet with an otg cable. On both of them it gets warm even when doing nothing.

OK it was cheap, but I have zero confidence in these flash drives. To be sure it won’t damage my TV I put it on a logitech extension piece from a unifying receiver. Beter be safe then sorry