Crucial is a Marvell controller for connecting the flash memory cells to a SATA3 interface with 6 Gbps. In particular, these are at the 88SS9174-BJP2, which also comes in models with 128 GB and 256 GB used. The controller are a total of eight channels for communication with the built-in NAND flash cells. The 16 memory chips (eight on each PCB side) come from chip giant Micron (0JB12 NW273) and are built in MLC technology. Another Micron IC provides 128 MB of DDR cache memory. TRIM is also part of the repertoire of RealSSD C300.
The TRIM command allows an operating system of the SSD to announce that deleted or otherwise vacant units no longer in use. Normally, the operating system noted in the administrative structures of the file system that the corresponding areas are available again for new data; the controller of the Solid State Drive receives this information, but not in the rule. By the ATA TRIM command is communicated to the drive when you delete files that the affected blocks as invalid, rather than hold their data further. The contents are no longer co-written, so that the write access speed to the drive and also the effects of wear can be reduced. As for the performance of individual models vary, these mainly in the writing speed. The 256 GB SSD C300-can with 215 MB / s clear to keep his nose in front, while the variants with 128 and 64 GB with only 140 MB and 75 get by / s need.




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