We have seen rapid developments in flash technology over the last few years. Performance has been going up at one end (with various new options for interfacing with the host), but, the costs have also been driven down at the other end of the spectrum. The appearance of TLC flash has led to lower costs as well as increased densities in flash-based storage devices (both SSDs and USB drives). MLC flash presents the best balance of performance / endurance and cost, while TLC-based drives are intended for the cost-conscious market segment. Back in July, ADATA introduced three external SSDs - the SE730 with a USB 3.1 Gen 2 Type-C interface, and the SV620 / SC660 with a USB 3.0 Micro-B interface. This review takes a look at how the three devices hold up in our rigorous benchmarking suite for direct-attached storage devices.
Source: anandtech vr