This is a NETGEAR Readynas NV+ v2 external drive that comes with two 2TB Western Digital hard disks. It is compatible with PCs and has a write speed of 2x. This device is perfect for those who need network attached storage for their hard drives, SSDs, and NAS. It is also ideal for those who are looking for a reliable and efficient way to store their data. The Readynas NV+ v2 is designed to provide fast and secure data transfer, and it is suitable for both personal and business use.