ADATA SE900G, 512GB, USB-C 3.2

ADATA's SE900G is the first USB 3.2 Gen 2x2 20 Gbps external SSD we review, and I have to say I'm impressed. The drive achieves blazing speeds of up to 1.6 GB/s in read and write. This makes it the perfect choice if you have to move a lot of data. Twice the speed than most competitors can really make a difference when time is money. What's important to mention is that while the new USB interface standard doubles the maximum transfer rate, our testing shows that the random IO performance is comparable to other drives in our test group, which use the slower 10 Gbps USB interface. Another interesting data point is that the SE900G has extremely low 512K mixed performance. While it is highly unlikely that you'll be reading and writing large amounts of data at the same time, it can definitely happen in real life, so it's not only a theoretical problem. Still, this definitely shouldn't be a dealbreaker. The low 512K mixed result is the reason why the scores on the summary page got dragged down a lot.

The ADATA SE900G is one of the fastest external SSDs on the market today and will make use of that USB 3.2 Gen 2×2 port on your system!

The ADATA SE900G is the latest entry in portable SSDs from ADATA. The drive leverages the USB 3.2 Gen2x2 interface for potential speeds of 2GB/s in both read and write. It has a neat-looking RGB light show it does while it works, though there is no way to control the lighting. The drive is compatible with all the main OSs that would use it, making it an attractive choice. For performance, we ran Blackmagic and IOMeter and ran it against another current drive with the same interface and capacity. All in all, it held its own and was able to almost hit its quoted speed (1.99GB/s compared to the quoted 2GB/s). In Blackmagic it had 1.7GB/s read and 1.6GB/s write. For IOMeter, 1 thread saw 1.4GB/s read and write in 2MB sequential, 1.34GB/s read and 983MB/s write in 2MB Random, and 7,882 IOPS read and 18,579 IOPS write in 4K. With 4 Thread the SE900G hit 1.99GB/s read and 1.8GB/s write in 2MB sequential, 1.86GB/s read and 1.02GB/s write in 2MB random, and 31,116 IOPS read and 63,827 IOPS write in 4K.