diff --git a/includes/discovery/os/powerconnect.inc.php b/includes/discovery/os/powerconnect.inc.php
index dde3ea5592..a764a39d4e 100755
--- a/includes/discovery/os/powerconnect.inc.php
+++ b/includes/discovery/os/powerconnect.inc.php
@@ -5,6 +5,8 @@ if (!$os)
   #if (strstr($sysDescr, "Neyland 24T")) { $os = "powerconnect"; } /* Powerconnect 5324 */
   if (stristr($sysDescr, "PowerConnect ")) { $os = "powerconnect"; }
   else if (preg_match("/Dell.*Gigabit\ Ethernet/i",$sysDescr)) { $os = "powerconnect"; }
+  //PowerConnect 55xx 
+  else if (stristr(snmp_get($device, "1.3.6.1.4.1.674.10895.3000.1.2.100.1.0", "-Oqv", ""),"PowerConnect") ) { $os = "powerconnect";}
 }
 
-?>
\ No newline at end of file
+?>