diff --git a/src/calibre/devices/misc.py b/src/calibre/devices/misc.py
index 152f704528..936faeb32d 100644
--- a/src/calibre/devices/misc.py
+++ b/src/calibre/devices/misc.py
@@ -224,13 +224,16 @@ class TREKSTOR(USBMS):
     FORMATS     = ['epub', 'txt', 'pdf']
 
     VENDOR_ID   = [0x1e68]
-    PRODUCT_ID  = [0x0041, 0x0042]
+    PRODUCT_ID  = [0x0041, 0x0042,
+            0x003e # This is for the EBOOK_PLAYER_5M https://bugs.launchpad.net/bugs/792091
+            ]
     BCD         = [0x0002]
 
     EBOOK_DIR_MAIN = 'Ebooks'
 
     VENDOR_NAME = 'TREKSTOR'
-    WINDOWS_MAIN_MEM = WINDOWS_CARD_A_MEM = 'EBOOK_PLAYER_7'
+    WINDOWS_MAIN_MEM = WINDOWS_CARD_A_MEM = ['EBOOK_PLAYER_7',
+            'EBOOK_PLAYER_5M']
 
 class EEEREADER(USBMS):