The Seagate ST4000VX007 4TB 3.5" SATA AF Skyhawk Surveillance Hard Drive is a high-quality internal desktop drive designed for use with PCs. With a storage capacity of 4TB, this hard drive offers ample space for storing large amounts of data. The sleek silver color and compact 3.5-inch form factor make it a stylish and practical addition to any computer system. Made by the trusted brand Seagate, this HDD only drive utilizes the SATA interface for seamless data access and transfer. Perfect for those in need of additional storage capacity for their computing needs.