The 4 AJA KI-STOR500USB-R0 High Capacity 500GB Hard Drive Storage Module is a reliable and high-quality external storage solution for computers and laptops. With a capacity of 500GB, this hard drive module provides ample space for storing large amounts of data, photos, and videos. The AJA brand ensures that the product is dependable and efficient, making it a great choice for those in need of additional storage space for their digital files.// missing power adapter/