
After you have purchased this product, discard the cable that came with it. I couldn't get a steady speed until I connected it to the USB 3.1 Gen 2 SuperSpeed 10Gb/s cable I got from Monoprice (same great results with USB 4.0 at 500Mb/s read/write ). My problem is indeed with the JMS850 controller which tends to shut down due to the random file transfer load. I can move a few 5-10GB files, go away for a moment to do something else, and come back with a drive that the OS doesn't recognize. In this case I have to unplug the drive and plug it back in. I've checked the board and can't find anything wrong, my only suspicion is that there is an occasional short that justifies the drive's strange behavior. I shouldn't have as many problems if other drives I have that can support 5Gb/s on their controllers are stable.

Samsung T5 Portable SSD MU PA500B
88 Review

SAMSUNG T7 Portable SSD 1TB: Fast and Reliable USB 3.2 External Solid State Drive in Gray
13 Review

π΄ Renewed Samsung Portable SSD T7 500GB USB 3.2 External Solid State Drive Red
20 Review

πΎ SanDisk 2TB Extreme PRO Portable SSD - Ultra-Fast Speeds up to 2000MB/s - USB-C, USB 3.2 Gen 2x2 - High-Performance External Solid State Drive - SDSSDE81-2T00-G25
10 Review

2 TB External HDD ADATA DashDrive Durable HD650, USB 3.2 Gen 1, Blue
55 Review

Shock-Resistant Transcend StoreJet 25M3 USB 3.1 Slim Portable Hard Drive with 500GB Capacity
99 Review

π Seagate Expansion 3TB Portable USB 3.0 External Hard Drive (STEA3000400) in Black
60 Review

18 TB External HDD Western Digital WD Elements Desktop, USB 3.0, black
95 Review