Usage Tips:[Product Introduction] X1002 is a PCleM.2 NVMe protocol M.2 solid-state drive expansion board designed specifically for Raspberry Pi 5 and installed on the bottom of for Raspberry Pi 5. It supports NVMe protocol M.2 interface hard drives, high-speed reading and writing, and fast Data fer and ultra-fast startup The X1002 hardware has no limit on NVME SSD capacity, depending on for Raspberry Pi operating system. If you find that you cannot start or the hard disk cannot be recognized, 1: Please check the power supply and whether the spring pin of X1002 is aligned with the Pi5 chip; 2: Check the wiring. The FFC cable is directional. Please check whether the words on the cable are connected correctly; 3: Please update your firmware, refer to the user manual [About hard drive] Tested to be incompatible with the following hard drives: WD Blue SN550/SN580 series WD Green SN350 series WD wD Black SN850 series Other NVMe SSD drives feature the same Phison controller These specific models have demonstrated compatibility issues and it is recommended to avoid them when considering the X10xx series NVMe expansion boards. [Supports NVMe hard disk protocol] Support 2230/2242/2260/2280 NVME M2 SSD disk. Only 2280 hard drive installation screws are provided, hard drive installation screws of other lengths need to be prepared by yourself; [Support M2 SSD] Material: PCB colour: Black Package Contents: 1 x Kit Only 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.