diff --git a/drivers/usb/serial/pl2303.c b/drivers/usb/serial/pl2303.c
index 5e86be81f4c9..1c4d3dbd4635 100644
--- a/drivers/usb/serial/pl2303.c
+++ b/drivers/usb/serial/pl2303.c
@@ -109,6 +109,7 @@ static const struct usb_device_id id_table[] = {
 	{ USB_DEVICE(SANWA_VENDOR_ID, SANWA_PRODUCT_ID) },
 	{ USB_DEVICE(ADLINK_VENDOR_ID, ADLINK_ND6530_PRODUCT_ID) },
 	{ USB_DEVICE(SMART_VENDOR_ID, SMART_PRODUCT_ID) },
+	{ USB_DEVICE(AT_VENDOR_ID, AT_VTKIT3_PRODUCT_ID) },
 	{ }					/* Terminating entry */
 };
 
diff --git a/drivers/usb/serial/pl2303.h b/drivers/usb/serial/pl2303.h
index f21445acc486..fcc2cfc1da28 100644
--- a/drivers/usb/serial/pl2303.h
+++ b/drivers/usb/serial/pl2303.h
@@ -160,3 +160,6 @@
 #define SMART_VENDOR_ID	0x0b8c
 #define SMART_PRODUCT_ID	0x2303
 
+/* Allied Telesis VT-Kit3 */
+#define AT_VENDOR_ID		0x0caa
+#define AT_VTKIT3_PRODUCT_ID	0x3001