{ USB_DEVICE(IODATA_VENDOR_ID, IODATA_PRODUCT_ID_RSAQ5) },
        { USB_DEVICE(ATEN_VENDOR_ID, ATEN_PRODUCT_ID),
                .driver_info = PL2303_QUIRK_ENDPOINT_HACK },
+       { USB_DEVICE(ATEN_VENDOR_ID, ATEN_PRODUCT_UC485),
+               .driver_info = PL2303_QUIRK_ENDPOINT_HACK },
        { USB_DEVICE(ATEN_VENDOR_ID, ATEN_PRODUCT_ID2) },
        { USB_DEVICE(ATEN_VENDOR_ID2, ATEN_PRODUCT_ID) },
        { USB_DEVICE(ELCOM_VENDOR_ID, ELCOM_PRODUCT_ID) },
 
 #define ATEN_VENDOR_ID         0x0557
 #define ATEN_VENDOR_ID2                0x0547
 #define ATEN_PRODUCT_ID                0x2008
+#define ATEN_PRODUCT_UC485     0x2021
 #define ATEN_PRODUCT_ID2       0x2118
 
 #define IODATA_VENDOR_ID       0x04bb