This is a Western Digital WD10EURX Green Power 1TB Internal Hard Drive. It is a new and factory-sealed product that has a 3.5-inch form factor and a 7200 RPM rotation speed. It is compatible with PCs and supports HDD drive types. The interface is SATA I and it has a cache of 64 MB. This hard drive has a storage capacity of 1 TB and is suitable for storage purposes.