With the 256GB RealSSD C300 Crucial developed an enormously fast SATA3 SSD, which can clearly eclipse usual SATA2 Solid State Drives. In this test report, the Crucial RealSSD C300 256GB SATA3 SSD was practically tested and benchmarked on a SATA3 interface and on a SATA2 controller. The Redaktion ocinside.de review will show, if the at present largest and fastest 256GB RealSSD from Crucial is a great choice.