Index: sys/cam/ata/ata_da.c
===================================================================
--- sys/cam/ata/ata_da.c
+++ sys/cam/ata/ata_da.c
@@ -490,6 +490,14 @@
 	},
 	{
 		/*
+		 * Samsung SM863 Series SSDs
+		 * 4k optimised
+		 */
+		{ T_DIRECT, SIP_MEDIA_FIXED, "*", "SAMSUNG MZ7KM*", "*" },E
+		/*quirks*/ADA_Q_4K
+	},
+	{
+		/*
 		 * SuperTalent TeraDrive CT SSDs
 		 * 4k optimised & trim only works in 4k requests + 4k aligned
 		 */
Index: sys/cam/scsi/scsi_da.c
===================================================================
--- sys/cam/scsi/scsi_da.c
+++ sys/cam/scsi/scsi_da.c
@@ -1162,6 +1162,14 @@
 	},
 	{
 		/*
+		 * Samsung SM863 Series SSDs
+		 * 4k optimised
+		 */
+		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "SAMSUNG MZ7KM*", "*" },
+		/*quirks*/DA_Q_4K
+	},
+	{
+		/*
 		 * SuperTalent TeraDrive CT SSDs
 		 * 4k optimised & trim only works in 4k requests + 4k aligned
 		 */