USB 3.0 is especially valuable for hyper-fast SSD-based external drives, but also high capacity external hard drives. This is a critical improvement it allows connecting high-speed peripherals, such as backup drives. Up to two internal hard drives or SSDs ( 960GB X 2 SSD possible via OWC upgrade).Fast quad-core CPU up to 2.6 GHz (for only $899!).The MacMini can now be a hot little number! With up to a 2.6 GHz quad-core CPU, the new MacMini is a winner for anyone who already has a screen and keyboard. Send Feedback Related: backup, hard drive, Mac mini, Mac Pro, Macs, memory, RAID, SSD, Thunderbolt, USB