Perfect storage solution for 4 - M.2 NGFF SATA SSD , Supports up to 2TB M.2 NGFF SSD solid-state drive, Only supports M.2 NGFF SSD 2280 length.UASP supported for 4, Integrated USB 3.1 Gen1 to SATA 6Gb/s bridge controller, Integrated high efficiency step-Down Converter, 3.3V max 4A to power the SSDUSB3.1 Gen1 5Gb/s connectivity offers plug-and-play functionality on your 4, Allows booting OS from your HDD/SSD for faster app opens, web serving and file copying (see note 2), LED blue indicator indicates drive statusSpecially-made USB3.1 jumper to connect with - no required Fully compatible with X735 for intelligent power management and cooling your .Fully compatible with X715 for wide input voltage (6~60V) and intelligent power management, Fully compatible with X765 for powering over Ethernet (POE, 5V 5A), Fully compatible with X728/X708 for uninterruptible power supply (18650 UPS, 5.1V 8A, )Specification:Power supply: 5Vdc +/-5% , Powered via USB port of 4Ports & :USB socket - USB 3.0 type A x167Pin M.2 connector P=0.5mm, H3.2mm, Key B x1PCB Size 87mm x 56mmMaterial: PC+metalcolour: As shownPackage Contents:1 x for 4th Generation Expansion KitOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.