diff --git a/src/tuxedo_io/tuxedo_io.c b/src/tuxedo_io/tuxedo_io.c
index 29eafe3..d25583a 100644
--- a/src/tuxedo_io/tuxedo_io.c
+++ b/src/tuxedo_io/tuxedo_io.c
@@ -100,6 +100,9 @@ static int tdp_max_gmxzgxx[] = { 0x50, 0x50, 0x5f };
 static int tdp_min_gmxagxx[] = { 0x05, 0x05, 0x05 };
 static int tdp_max_gmxagxx[] = { 0x78, 0x78, 0xd7 };
 
+static int tdp_min_gmxrgxx[] = { 0x05, 0x05, 0x05 };
+static int tdp_max_gmxrgxx[] = { 0x64, 0x64, 0x6e };
+
 static int *tdp_min_defs = NULL;
 static int *tdp_max_defs = NULL;
 
@@ -138,6 +141,9 @@ void uw_id_tdp(void)
 	} else if (dmi_match(DMI_PRODUCT_SKU, "STELLARIS1XI04")) {
 		tdp_min_defs = tdp_min_gmxagxx;
 		tdp_max_defs = tdp_max_gmxagxx;
+	} else if (dmi_match(DMI_PRODUCT_SKU, "STEPOL1XA04")) {
+		tdp_min_defs = tdp_min_gmxrgxx;
+		tdp_max_defs = tdp_max_gmxrgxx;
 #endif
 	} else {
 		tdp_min_defs = NULL;
diff --git a/src/uniwill_keyboard.h b/src/uniwill_keyboard.h
index 382f7e4..547e505 100644
--- a/src/uniwill_keyboard.h
+++ b/src/uniwill_keyboard.h
@@ -224,6 +224,7 @@ struct uniwill_device_features_t *uniwill_get_device_features(void)
 		|| dmi_match(DMI_PRODUCT_SKU, "STELLARIS1XI03")
 		|| dmi_match(DMI_PRODUCT_SKU, "STELLARIS1XA03")
 		|| dmi_match(DMI_PRODUCT_SKU, "STELLARIS1XI04")
+		|| dmi_match(DMI_PRODUCT_SKU, "STEPOL1XA04")
 #endif
 	;