diff --git a/drivers/usb/serial/pl2303.c b/drivers/usb/serial/pl2303.c
index fb3b6b7b9065..b3014fda645c 100644
--- a/drivers/usb/serial/pl2303.c
+++ b/drivers/usb/serial/pl2303.c
@@ -77,6 +77,7 @@ static struct usb_device_id id_table [] = {
 	{ USB_DEVICE(CA_42_CA42_VENDOR_ID, CA_42_CA42_PRODUCT_ID) },
 	{ USB_DEVICE(SAGEM_VENDOR_ID, SAGEM_PRODUCT_ID) },
 	{ USB_DEVICE(LEADTEK_VENDOR_ID, LEADTEK_9531_PRODUCT_ID) },
+	{ USB_DEVICE(SPEEDDRAGON_VENDOR_ID, SPEEDDRAGON_PRODUCT_ID) },
 	{ }					/* Terminating entry */
 };
 
diff --git a/drivers/usb/serial/pl2303.h b/drivers/usb/serial/pl2303.h
index 9bc4755162ad..77901d143979 100644
--- a/drivers/usb/serial/pl2303.h
+++ b/drivers/usb/serial/pl2303.h
@@ -75,3 +75,7 @@
 /* Leadtek GPS 9531 (ID 0413:2101) */
 #define LEADTEK_VENDOR_ID	0x0413
 #define LEADTEK_9531_PRODUCT_ID	0x2101
+
+/* USB GSM cable from Speed Dragon Multimedia, Ltd */
+#define SPEEDDRAGON_VENDOR_ID	0x0e55
+#define SPEEDDRAGON_PRODUCT_ID	0x110b