I purchased this on Amazon for around 1,000 yen. This is a convenient hard disk case that allows you to easily use your 2.5-inch HDD or SSD as an external drive. It supports USB 3.0 for high-speed transfer up to 5Gbps and drives up to 6TB. Data transfer and backup can be done smoothly. No tools are required, just plug and play. It works with both Windows and Mac, offering wide compatibility. The power is supplied via USB bus power, so no external power supply is needed. Compact and lightweight, it uses shock-resistant materials, making it convenient to carry. It also has excellent heat dissipation, maintaining stable operation even during long-term use. 【Product Specifications】 Brand: UGREEN Product Name: External HDD Case Compatible Drives: 2.5-inch HDD/SSD (up to 6TB) External Connection: USB 3.0 Transfer Speed: Up to 5Gbps Supported OS: Windows, Mac OS (NTFS/FAT32 compatible) Internal Connection: SATA (Serial Connection) Power: USB bus power (no external power supply required) Size: Approximately 12.7 x 7.9 x 1.3cm Material: Polycarbonate *HDD/SSD itself is not included in this product. Connection Standards USB3.1 Gen2 (speed limited to 6Gbps) / USB3.1 Gen1 (5Gbps) / USB3.0 / USB2.0 (speed limited to 480Mbps) Connection Standards SATA 3.0, SATA 2.0\SATA 1.0 and backward compatible Data Transfer Speed USB 3.1 Gen2 connection: 6Gbps (theoretical value) Compatible Drives 2.5-inch SATA SSD/HDD. Up to 9.5mm thick Supported OS Windows 11 / 10 / 8.1 / 7, Mac OS, Linux Supported Functions S.M.A.R.T. hard disk detection, TRIM command, UASP high-speed mode Auto Sleep Function Enters sleep mode if not used for approximately 3 minutes or more. Accessories USB cable Thank you for viewing.