I got this for my new 2019 Mac Pro to add 2.5" SSD storage. One side of the board is a nice and flat side under the SSD location. The site shown in the listing images and Sedna's own website. What is not shown is the side of the river where some chains are sticking out BELOW where the SSD is. One is 3.5mm high and prevents any method of attaching the SSD using the supplied L-brackets and screws (shown without SSD attached). An SSD cannot lie flat on the board (see image with two blue SSDs). What the hell? I installed it anyway and both drives are recognized and working fine. Excellent quality but I'm not satisfied with the overall rating because the circuits bump on one side of the board and I hope the SSD doesn't slowly slide out of the SATA connector.