diff --git a/core/api/src/main/java/org/onosproject/ui/model/topo/UiRegionDeviceLink.java b/core/api/src/main/java/org/onosproject/ui/model/topo/UiRegionDeviceLink.java
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+++ b/core/api/src/main/java/org/onosproject/ui/model/topo/UiRegionDeviceLink.java
@@ -0,0 +1,92 @@
+/*
+ * Copyright 2016-present Open Networking Laboratory
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.onosproject.ui.model.topo;
+
+import org.onosproject.net.DeviceId;
+import org.onosproject.net.PortNumber;
+import org.onosproject.net.region.RegionId;
+
+
+/**
+ * Designates a link between a region node and a device.
+ */
+public class UiRegionDeviceLink extends UiLink {
+
+    private static final String E_NOT_REGION_DEVICE_ID =
+            "UI link identifier not region to device";
+
+    // private (synthetic) region-device link
+    private final RegionId region;
+    private final DeviceId device;
+    private final PortNumber port;
+
+    /**
+     * Creates a region to device UI link. Note that it is expected that the
+     * link identifier is one that has a region ID at one end, and a device
+     * ID at the other
+     *
+     * @param topology parent topology
+     * @param id       canonicalized link identifier
+     * @throws IllegalArgumentException if the link ID is not region-region
+     */
+    public UiRegionDeviceLink(UiTopology topology, UiLinkId id) {
+        super(topology, id);
+        region = id.regionA();
+        device = (DeviceId) id.elementB();
+        port = id.portB();
+        if (region == null || device == null || port == null) {
+            throw new IllegalArgumentException(E_NOT_REGION_DEVICE_ID);
+        }
+    }
+
+    @Override
+    public String endPointA() {
+        return region.id();
+    }
+
+    @Override
+    public String endPointB() {
+        return device + UiLinkId.ID_PORT_DELIMITER + port;
+    }
+
+    /**
+     * Returns the identity of the region.
+     *
+     * @return region ID
+     */
+    public RegionId region() {
+        return region;
+    }
+
+    /**
+     * Returns the identity of the device.
+     *
+     * @return device ID
+     */
+    public DeviceId device() {
+        return device;
+    }
+
+    /**
+     * Returns the identity of the device port.
+     *
+     * @return device port number
+     */
+    public PortNumber port() {
+        return port;
+    }
+}