diff --git a/share/man/man4/Makefile b/share/man/man4/Makefile
--- a/share/man/man4/Makefile
+++ b/share/man/man4/Makefile
@@ -589,6 +589,7 @@
 	tdfx.4 \
 	termios.4 \
 	textdump.4 \
+	thunderbolt.4 \
 	ti.4 \
 	timecounters.4 \
 	tmpfs.4 \
diff --git a/share/man/man4/thunderbolt.4 b/share/man/man4/thunderbolt.4
new file mode 100644
--- /dev/null
+++ b/share/man/man4/thunderbolt.4
@@ -0,0 +1,22 @@
+.\"
+.\" Copyright (c) 2025 Alexander Ziaee
+.\"
+.\" SPDX-License-Identifier: BSD-2-Clause
+.\"
+.Dd October 2, 2025
+.Dt THUNDERBOLT 4
+.Os
+.Sh NAME
+.Nm thunderbolt
+.Nd USB4 controller driver
+.Sh SYNOPSIS
+.Cd device thunderbolt
+.Sh HARDWARE
+The
+.Nm
+driver supports USB4 controllers.
+.Sh HISTORY
+The
+.Nm
+driver appeared in
+.Fx 15.0 .