diff --git a/sysutils/twa-kmod/Makefile b/sysutils/twa-kmod/Makefile
new file mode 100644
index 000000000000..361e15647562
--- /dev/null
+++ b/sysutils/twa-kmod/Makefile
@@ -0,0 +1,33 @@
+PORTNAME=	twa-kmod
+PORTVERSION=	20230821
+CATEGORIES=	sysutils
+
+MAINTAINER=	dinoex@FreeBSD.org
+COMMENT=	3ware 9000/9500/9550/9650 series SATA RAID controllers driver
+WWW=		https://github.com/dinoex/twa-kmod/
+
+LICENSE=	BSD2CLAUSE
+
+ONLY_FOR_ARCHS=	amd64
+ONLY_FOR_ARCHS_REASON=	not yet tested on non amd64
+#IGNORE_FreeBSD_13=	included in base system
+IGNORE_FreeBSD_15=	not supported on FreeBSD 15.x
+
+USES=		kmod uidfix
+USE_GITHUB=	yes
+GH_ACCOUNT=	dinoex
+PATCH_WRKSRC=	${WRKSRC}/sys/dev/twa
+WRKROOT=	${WRKDIR}/${PORTNAME}-${PKGVERSION}
+BUILD_WRKSRC=	${WRKSRC}/sys/modules/twa
+INSTALL_WRKSRC=	${BUILD_WRKSRC}
+MAKE_ENV+=	SRCTOP=${WRKSRC}
+CFLAGS+=	-Wno-error=unused-but-set-variable
+CFLAGS+=	-Wno-error=implicit-int
+CFLAGS+=	-I${WRKSRC}/sys
+PLIST_FILES=	${KMODDIR}/twa.ko \
+		share/man/man4/twa.4.gz
+
+post-install:
+	${INSTALL_MAN} ${WRKSRC}/share/man/man4/twa.4 ${STAGEDIR}${PREFIX}/share/man/man4/
+
+.include <bsd.port.mk>
diff --git a/sysutils/twa-kmod/distinfo b/sysutils/twa-kmod/distinfo
new file mode 100644
index 000000000000..fa140c3a7478
--- /dev/null
+++ b/sysutils/twa-kmod/distinfo
@@ -0,0 +1,3 @@
+TIMESTAMP = 1712228053
+SHA256 (dinoex-twa-kmod-20230821_GH0.tar.gz) = 2fceb2bc71e62b6fcad1a2da2a723f51ad67ea815541d463bd72400c3ffe133b
+SIZE (dinoex-twa-kmod-20230821_GH0.tar.gz) = 56738
diff --git a/sysutils/twa-kmod/files/patch-tw_osl_freebsd.c b/sysutils/twa-kmod/files/patch-tw_osl_freebsd.c
new file mode 100644
index 000000000000..28250caaeab9
--- /dev/null
+++ b/sysutils/twa-kmod/files/patch-tw_osl_freebsd.c
@@ -0,0 +1,21 @@
+--- tw_osl_freebsd.c.orig	2024-04-04 10:43:09 UTC
++++ tw_osl_freebsd.c
+@@ -67,8 +67,8 @@ static struct cdevsw twa_cdevsw = {
+ 	.d_name =	"twa",
+ };
+ 
+-static devclass_t	twa_devclass;
+ 
++
+ /*
+  * Function name:	twa_open
+  * Description:		Called when the controller is opened.
+@@ -194,7 +194,7 @@ static driver_t	twa_pci_driver = {
+ 	sizeof(struct twa_softc)
+ };
+ 
+-DRIVER_MODULE(twa, pci, twa_pci_driver, twa_devclass, 0, 0);
++DRIVER_MODULE(twa, pci, twa_pci_driver, 0, 0);
+ MODULE_DEPEND(twa, cam, 1, 1, 1);
+ MODULE_DEPEND(twa, pci, 1, 1, 1);
+ 
diff --git a/sysutils/twa-kmod/pkg-descr b/sysutils/twa-kmod/pkg-descr
new file mode 100644
index 000000000000..b426f3c2db5a
--- /dev/null
+++ b/sysutils/twa-kmod/pkg-descr
@@ -0,0 +1,2 @@
+The twa driver provides support for AMCC's 3ware 9000/9500/9550/9650
+series SATA RAID controllers for FreeBSD-14