diff --git a/plugins/router/snmp__mikrotik_ram b/plugins/router/snmp__mikrotik_ram
new file mode 100755
index 00000000..5c6c3d54
--- /dev/null
+++ b/plugins/router/snmp__mikrotik_ram
@@ -0,0 +1,106 @@
+#!/usr/bin/perl -w
+#
+# Copyright (C) 2019 Alejandro Suarez (teconecta.es)
+#
+# Munin plugin to monitor Mikrotik routers RAM utilization.
+# Based on snmp__if_  plugin.
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; version 2 dated June,
+# 1991.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+
+
+#%# family=snmpauto
+#%# capabilities=snmpconf
+
+use strict;
+use Net::SNMP;
+
+my $DEBUG = 0;
+
+my $host      = $ENV{host}      || undef;
+my $port      = $ENV{port}      || 161;
+my $community = $ENV{community} || "public";
+
+my $response;
+
+if (defined $ARGV[0] and $ARGV[0] eq "snmpconf")
+{
+    print "require 1.3.6.1.2.1.25.2.3.1.5.65536 \n";
+    exit 0;
+}
+
+if ($0 =~ /^(?:|.*\/)snmp_([^_]+)_mikrotik_ram$/)
+{
+    $host  = $1;
+    if ($host =~ /^([^:]+):(\d+)$/)
+    {
+        $host = $1;
+        $port = $2;
+    }
+}
+elsif (!defined($host))
+{
+    print "# Debug: $0 -- $1\n" if $DEBUG;
+    die "# Error: couldn't understand what I'm supposed to monitor.";
+}
+
+my $sysRAMUsage     = "1.3.6.1.2.1.25.2.3.1.6.65536";
+my $sysRAMTotal     = "1.3.6.1.2.1.25.2.3.1.5.65536";
+
+my ($session, $error) = Net::SNMP->session(
+                -hostname  => $host,
+                -community => $community,
+                -port      => $port
+        );
+
+
+if (!defined ($session))
+{
+        die "Croaking: $error";
+}
+
+
+if ($ARGV[0] and $ARGV[0] eq "config")
+{
+    print "host_name $host\n";
+    if (!defined ($response = $session->get_request($sysRAMTotal)))
+    {
+        die "Croaking: " . $session->error();
+    }
+#    print "graph_args --base 1000 -r --lower-limit 0 --upper-limit 100\n";
+    print "graph_args --base 1024 -l 0 --vertical-label Bytes --upper-limit " . ($response->{$sysRAMTotal} * 1024) . "\n";
+    print "graph_title RAM usage\n";
+    print "graph_category system\n";
+    print "graph_info This graph shows the router's memory usage.\n";
+    print "graph_order Total Used\n";
+    print "graph_vlabel bytes\n";
+    print "sysRAMTotal.label Total Memory\n";
+    print "sysRAMTotal.draw AREA\n";
+    print "sysRAMUsage.label Used Memory\n";
+    print "sysRAMUsage.draw AREA\n";
+    exit 0;
+}
+
+
+if (defined ($response = $session->get_request(-varbindlist => [$sysRAMUsage, $sysRAMTotal])))
+{
+        print "sysRAMUsage.value ", $response->{$sysRAMUsage}*1024, "\n";
+        print "sysRAMTotal.value ", $response->{$sysRAMTotal}*1024, "\n";
+}
+else
+{
+        print "sysRAMUsage.value U\n";
+}
+
+# vim:syntax=perl