@Black_Hawk Glad to help
Either the usb connection/cable is not connected properly/defective or your 5400rpm drive is more than 70-80% filled which on SMR hdd will result in speeds dropping to usb 2 levels.However the write speeds are capped to 32mbps on my 2.5inch 5400rpm drive.
I dont know if this is my hdd bottlenecking or the chipset in this.
Have wriiten around 50gb 4k videos in one go