Momentary disconnection of SSD in MacBook

I am using a Sandisk Extreme Portable 1TB. After an hour or two, the drive Randomly seems to be ejected for like 1 Millisecond or something, and then mounts back again. Not in a specific period but atleast 1 or two times after an hour or two. Its pretty strange and harmful for the data right...Any solutions to that? Using another sandisk 4TB, no issues in that, even though its in a Usb Hub and the 1TB is directly connected and giving issues!