Crucial RealSSD C300 256GB 2.5" SATA III internal SSD CTFDDAC256MAG-1G1

256GB SATA III MLC Internal SSD

The Crucial RealSSD C300 is a 2.5-inch internal solid-state drive with a 256GB capacity. It connects through a SATA 6Gb/s interface and uses Micron MLC NAND flash with a Marvell controller. The drive delivers sustained sequential reads of 355MBps and writes of 215MBps on a SATA 6Gbps link.

Suits 2.5-inch SATA bays needing MLC endurance

This drive fits laptops and desktops with a standard 2.5-inch SATA bay. The MLC memory and 1,200,000-hour MTBF serve workloads that value write endurance and reliability. Systems limited to SATA 3Gbps will see reads capped at 265MBps, while builds requiring an M.2 form factor or a different capacity cannot use this model.

355MBps SATA 6Gbps sequential read

The headline figure is a sustained sequential read of 355MBps when the host runs SATA 6Gbps. That number decides whether the drive meets the throughput target for a given workload. On a 3Gbps port the read drops to 265MBps, and write throughput stays at 215MBps regardless of link speed.