【Product Description】 Thank you for viewing. This product is a 320GB Hitachi HDD assembled into a USB 3.0 external enclosure. The health status is "Good," and there are no bad sectors, so you can use it with confidence. This is a unit with low usage time and is in good condition. It has been formatted, so you can use it immediately by connecting it to your computer. In addition, it has been overwritten three times using the method recommended by the National Security Agency (NSA) of the United States, so you can rest assured about data erasure. 【Specifications】 Manufacturer: Hitachi Model Number: HTS545032A7E380 Capacity: 320GB Rotation Speed: 5400rpm Connection: USB 3.0 (UASP compatible enclosure) 【Operation Check】 Completely initialized using a disk erasure utility with the NSA method (random numbers x 2 + zero write) Confirmed "0" bad sectors with HDD Scan CrystalDiskInfo Health Status: "Good" Usage Time: 1142 hours Power-on Count: 910 times 【Benchmark】 CrystalDiskMark Actual Values Sequential Read: Approx. 71MB/s Sequential Write: Approx. 69MB/s It shows stable speeds as a USB 3.0 connection, and the results are good with no practical problems. 【Included Items】 External HDD Enclosure (USB 3.0 compatible) USB connection cable If you wish, we will give you a USB A to C adapter. Please let us know by message after purchase. 【Shipping】 Shipping is planned via Click Post (seller pays). We will carefully pack it with waterproof and cushioning materials and ship it quickly. 【Notes】 Due to being a used item, there may be some scratches or signs of use on the exterior. The operating status described is the confirmed content at the time of listing. Returns and exchanges are not supported, so please understand. Immediate purchase is welcome. Please refrain from price negotiations. 【Recommended Points】 ・Hitachi 320GB External HDD ・Low usage time and in good condition ・Health status "Good," no bad sectors ・USB 3.0 compatible for stable operation ・NSA method erasure for peace of mind