I purchased a T5 portable SSD drive (500MB) awhile back from Amazon but only recently started using it.
From a MacBook Pro, I was copying files to several SSD drives, including a T1 and a WD Passport, and I noticed the T5 was several times slower than the other drives. I downloaded the BlackMagic Disk Speed Test app, and noticed I was getting read and write speeds on this drive that were right around 40 MB/s. Testing the other drives, including the internal SSD, I was getting speeds more in the 200-300 MB/s range. I reformatted the drive using JHFS+ but it made no difference.
I then took the drive to a Windows machine and reformatted it using NTFS. Using AS SSD Benchmark, I am seeing read and write speeds on the drive between 20-25 MB/s. Again, other SSD drives are showing between 200-300 MB/s.
I am thinking that maybe it's the cable. Can I use any USB-C to USB-A cable as a replacement?
I am really disgusted with this since the drive is obviously defective and it is too late to get my money back.
Solved! Go to Solution.
Same here!!! I upgraded from 500 ssd WD and bought T5 1T.
I'm using as external hard drive for my virtual instruments,
it took 7minutes to upload one of my VST..
I changed the cable too but it's the same..
It is a defect drive. I experienced same issue. Around 40MB/s read/write NTFS. I bought it specifically for my son's Xbox One X but the Xbox kept saying it was too slow for games. Exchanged it for a new one and boom 400+MB's and xbox worked perfectly.
I was backing up with Acronis from an EVO SSD and was only getting 42MB/s wite speeds. I used the USB-C to USB-C cable for this backup. Updated Acronis SW and same issue. Used the USB3.0 to USB-C connector on drive and I got good write speeds of 450+MB/s. So my problem was something between the USB-C to USB-C connection on my PC. Works fine with the other USB3.0 to USB-C cable.