These devices are blacklisted in the Linux kernel's libata-core.c to force sending non-queued TRIM commands (ATA_HORKAGE_NO_NCQ_TRIM) to these drives instead of queued TRIM commands:[73] Micron/Crucial M500 using all firmware versions including factory recertified SSDs Micron M510 using firmware version MU01 Micron/Crucial M550 using firmware version MU01 Crucial MX100 using firmware version MU01 Samsung 840 and 850 series SSDs using all firmware versions