Buffalo's DriveStation DDR is a 1-drive high performance USB 3.0 desktop attached storage device that offers ultrafast transfer speeds, comparable to SSD. Combining the high capacity of an HDD with the performance of DDR3 RAM, DriveStation DDR utilizes 1 GB of DRAM cache for blazing fast transfers, up to 408 Mbps. DriveStation DDR is the perfect solution for easily expanding storage or backing up your computer with fast file transfers. 1 GB of DRAM cache for transfer speeds up to 2.3x faster than USB 3.0 USB 3.0 offers universal connectivity for PC and Mac® computers Schedule automatic backups for your PC with Buffalo Backup Utility Time Machine support offers scheduled backups for protecting Mac computer Sleek chassis can be positioned vertically or horizontally for efficient use of space More from the Manufacturer