Prices on currently range from $73 up to $250, with the 525GB version reviewed here going for about $120. The MX300 M.2 is available now in 275GB, 525GB and 1050GB capacities. Last, but not least, the MX300 M.2 supports the SATA Device Sleep (DEVSLP) standard which extends the battery life of a device by reducing the drive's power consumption when it's not in use. The MX300 M.2 also uses Dynamic Write Acceleration to enable faster saves and file transfers, and technologies like Data Defense and Redundant Array of Independent NAND (RAIN) to guard against corruption and protect your data. Along with thermal and power loss protection, TRIM support and active garbage collection, the drive features AES 256-bit full disk encryption and is compatible with both the TCG Opal and IEEE 1667 specifications. It also did surprisingly well in our random write tests, producing more than 80,000 IOPS at low queue depths.įast read and write speeds aren't the only things the MX300 M.2 has to offer. In our sequential read and write tests, the 525GB version of the MX300 M.2 was able to read at speeds as high as 536 MB/s and write at speeds in excess of 514 MB/s. Like its 2.5-inch counterpart, the drive combines Marvell's 88SS1074B1 controller with Micron's new 3D TLC NAND to deliver good performance, enhanced features and a high level of endurance at a price that won't break the bank. With the drive wiped clean, it had average read and write speeds of 375.8 MB/s and 372.4 MB/s, respectively.Ĭrucial's new MX300 M.2 SSD is a great choice for anyone looking to increase the performance and storage capacity of their mobile device. Lastly, I used Crucial's Storage Executive software to perform a secure erase (aka sanitize) on the MX300 M.2. Its important to note that solid state drives do not need defragmenting, the TRIM command is similar in effect to defragmenting. However, its average write speed climbed up to 283.5 MB/s. The drive wasn't able to reach the factory fresh performance shown in our earlier tests. To see how well the MX300 M.2 could recover, I let the computer sit for about 30 minutes and then reran the test. However, its average writing speed dropped to 28.9 MB/s. This had little impact on the MX300 M.2's read speed. I used Iometer to fill the entire drive and then ran a random write test for 30 minutes. To test the MX300 M.2's TRIM and garbage collection functions, I first put the drive in a "dirty" state. Using this information, the drive pro-actively erases these blocks and adds them to the free block pool. The TRIM command allows an operating system, such as Windows 7, to tell an SSD which data blocks are no longer in use. To fix this problem, most manufacturers have added TRIM support to their SSDs. This procedure is very complicated and can slow an SSD's write speeds considerably. Over time, an SSD will run out of fresh blocks and will have to write over data the file system has marked as deleted. One of the biggest issues people run into is performance degradation. While SSD's offer many benefits, there are some downsides to using flash memory.
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