diff --git a/docs/user/supported_devices.rst b/docs/user/supported_devices.rst
index 19e3d2b3..87e9be4d 100644
--- a/docs/user/supported_devices.rst
+++ b/docs/user/supported_devices.rst
@@ -362,6 +362,10 @@ ramips-mt7621
 
   - GL-MT1300
 
+* Mercusys
+
+  - MR70X (v1)
+
 * NETGEAR
 
   - EX6150 (v1)
diff --git a/targets/ramips-mt7621 b/targets/ramips-mt7621
index 7c7fa151..b183bc58 100644
--- a/targets/ramips-mt7621
+++ b/targets/ramips-mt7621
@@ -24,6 +24,11 @@ device('gl.inet-gl-mt1300', 'glinet_gl-mt1300', {
 })
 
 
+-- Mercusys
+
+device('mercusys-mr70x-v1', 'mercusys_mr70x-v1')
+
+
 -- Netgear
 
 device('netgear-ex6150', 'netgear_ex6150', {