Raspberry Pi Compute Module 4 HAT For CM4 PCIe to M2 NVMe SSD Adapter Board B Overview [] PCIe TO M.2 Adapter (B), Supports NVMe Protocol M.2 Solid State Drive, High-Speed Reading/Writing, Supports Raspberry Pi Compute Module 4 Features [] Support NVMe protocol M.2 interface Solid State Drive protocol, high-speed write/read, higher working efficiency. [] Only support CM4 HAT. []Supports Raspberry Pi Compute Module 4. []Compatible with M.2 solid state drive in different sizes. []The LED lights up when power-on, and keeps blinking while reading/writing. Supports Compute Module 4 IO Board [] Extending M.2 Interface For Compute Module 4 Series IO Boards []Working With Official CM4 IO Board [] Working With CM4 IoT Industrial Control Base [] * for reference only, please refer to the Package Content for detailed part list Faster Reading/Writing [] Faster Reading/Writing Speed Than HDD, Greatly Boosting Drive Performance [] * The data above comes from Waveshare testing, for reference only. NVMe Drive Protocol Support Onboard Operating Indicator [] The LED Lights Up When Power-On, And Keeps Blinking While Reading/Writing []* for reference only, please refer to the Package Content for detailed part list Compatible With Different Sizes Of M.2 Solid State Drive Outline Dimensions