I've never heard of this brand before but took a chance because of the price. I needed a 500GB SSD for my 2012 Mac mini and didn't want to spend more than $50. I received the disk, installed it, and installed a fresh copy of Catalina within minutes with no problems. The read speed is stable at 440-480 and the write speed at 400 as shown in the figure. It's not 530Mbps like some drives, but it's more than enough for what I do.
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