A DealNews exclusive! Megamacs offers the Monster Digital Overdrive Mini 512GB USB 3.0 External Solid State Drive, model no. SSDOM-0512-A, for $299.49 with free shipping. That's the lowest total price we could find by $5. (For further comparison, most stores charge at least $330, and Apple charges $600.) It features a laser-etched stainless steel enclosure, LED indicator, transfer speeds of up to 250MBps, and USB 3.0 connectivity. Deal ends September 26.