diff --git a/sys/cam/ata/ata_da.c b/sys/cam/ata/ata_da.c
index d6fcdeddc5f6..200b855a0e59 100644
--- a/sys/cam/ata/ata_da.c
+++ b/sys/cam/ata/ata_da.c
@@ -119,7 +119,8 @@ typedef enum {
 	ADA_Q_NCQ_TRIM_BROKEN	= 0x02,
 	ADA_Q_LOG_BROKEN	= 0x04,
 	ADA_Q_SMR_DM		= 0x08,
-	ADA_Q_NO_TRIM		= 0x10
+	ADA_Q_NO_TRIM		= 0x10,
+	ADA_Q_128KB		= 0x20
 } ada_quirks;
 
 #define ADA_Q_BIT_STRING	\
@@ -128,7 +129,8 @@ typedef enum {
 	"\002NCQ_TRIM_BROKEN"	\
 	"\003LOG_BROKEN"	\
 	"\004SMR_DM"		\
-	"\005NO_TRIM"
+	"\005NO_TRIM"		\
+	"\006128KB"
 
 typedef enum {
 	ADA_CCB_RAHEAD		= 0x01,
@@ -276,6 +278,11 @@ struct ada_quirk_entry {
 
 static struct ada_quirk_entry ada_quirk_table[] =
 {
+	{
+		/* Sandisk X400 */
+		{ T_DIRECT, SIP_MEDIA_FIXED, "*", "SanDisk?SD8SB8U1T00*", "X4162000*" },
+		/*quirks*/ADA_Q_128KB
+	},
 	{
 		/* Hitachi Advanced Format (4k) drives */
 		{ T_DIRECT, SIP_MEDIA_FIXED, "*", "Hitachi H??????????E3*", "*" },
@@ -1815,6 +1822,8 @@ adaregister(struct cam_periph *periph, void *arg)
 		maxio = min(maxio, 65536 * softc->params.secsize);
 	else					/* 28bit ATA command limit */
 		maxio = min(maxio, 256 * softc->params.secsize);
+	if (softc->quirks & ADA_Q_128KB)
+		maxio = min(maxio, 128 * 1024);
 	softc->disk->d_maxsize = maxio;
 	softc->disk->d_unit = periph->unit_number;
 	softc->disk->d_flags = DISKFLAG_DIRECT_COMPLETION | DISKFLAG_CANZONE;
diff --git a/sys/cam/scsi/scsi_da.c b/sys/cam/scsi/scsi_da.c
index c8be3a01f851..d7c6b30fca93 100644
--- a/sys/cam/scsi/scsi_da.c
+++ b/sys/cam/scsi/scsi_da.c
@@ -130,7 +130,8 @@ typedef enum {
 	DA_Q_NO_UNMAP		= 0x20,
 	DA_Q_RETRY_BUSY		= 0x40,
 	DA_Q_SMR_DM		= 0x80,
-	DA_Q_STRICT_UNMAP	= 0x100
+	DA_Q_STRICT_UNMAP	= 0x100,
+	DA_Q_128KB		= 0x200
 } da_quirks;
 
 #define DA_Q_BIT_STRING		\
@@ -143,7 +144,8 @@ typedef enum {
 	"\006NO_UNMAP"		\
 	"\007RETRY_BUSY"	\
 	"\010SMR_DM"		\
-	"\011STRICT_UNMAP"
+	"\011STRICT_UNMAP"	\
+	"\012128KB"
 
 typedef enum {
 	DA_CCB_PROBE_RC		= 0x01,
@@ -870,6 +872,11 @@ static struct da_quirk_entry da_quirk_table[] =
 		 "1.00"}, /*quirks*/ DA_Q_NO_RC16
        },
 	/* ATA/SATA devices over SAS/USB/... */
+	{
+		/* Sandisk X400 */
+		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "SanDisk SD8SB8U1*", "*" },
+		/*quirks*/DA_Q_128KB
+	},
 	{
 		/* Hitachi Advanced Format (4k) drives */
 		{ T_DIRECT, SIP_MEDIA_FIXED, "Hitachi", "H??????????E3*", "*" },
@@ -2825,6 +2832,8 @@ daregister(struct cam_periph *periph, void *arg)
 		softc->maxio = MAXPHYS;		/* for safety */
 	else
 		softc->maxio = cpi.maxio;
+	if (softc->quirks & DA_Q_128KB)
+		softc->maxio = min(softc->maxio, 128 * 1024);
 	softc->disk->d_maxsize = softc->maxio;
 	softc->disk->d_unit = periph->unit_number;
 	softc->disk->d_flags = DISKFLAG_DIRECT_COMPLETION | DISKFLAG_CANZONE;