The U.2 SFF-8639 to 2.5 Inch U.2 SSD Adapter is the perfect solution for expanding your storage capacity. This adapter is designed to support 2.5" U.2 NVME SSD, SAS, and SATA HDD, SSD. It is equipped with a built-in 12V Hot Plug Power protection circuit, 5V Hot Plug Power protection circuit and 3.3VAUX Hot Plug Power protection circuit, ensuring your data stays safe and secure. The adapter also features a built-in U.2 (SFF-8639) Male & Female connector and a built-in SMBUS 256KB EEPROM. It supports SMB_CLK, SMB_DATA, and U.2 Duel port design, as well as SAS Primary & Secondary port design. The LED1 and LED3 green LED indicates SSD & HDD power ready, and LED2 red LED Blinking indicates U.2 SSD active status. This adapter is compliant with NVM Express 1.2, PCI Express Base Specification Rev 3.0 Support SSD_Form_Factor_Version1_a, SFF-8639 Specification Rev 2.0, SerialATA_Revision_3_2_Gold, and SAS 3. With Micro SATA Cables PN # SFF-1475-U2, this adapter is the perfect addition to your storage setup. It is easy to install and use, making it a great choice for both personal and professional use.