diff --git a/roborock/data/v1/v1_code_mappings.py b/roborock/data/v1/v1_code_mappings.py
index 730be40e..2a76ee88 100644
--- a/roborock/data/v1/v1_code_mappings.py
+++ b/roborock/data/v1/v1_code_mappings.py
@@ -664,6 +664,7 @@ class RoborockDockTypeCode(RoborockEnum):
     saros_r10_dock = 16
     qrevo_curv_dock = 17
     saros_10_dock = 18
+    qv_35a_dock = 21
     qrevo_s5v_dock = 22
     saros_20_dock = 27
 
diff --git a/roborock/device_features.py b/roborock/device_features.py
index 9b03b972..42d65127 100644
--- a/roborock/device_features.py
+++ b/roborock/device_features.py
@@ -653,6 +653,7 @@ def get_supported_features(self) -> list[str]:
     RoborockDockTypeCode.qrevo_s_dock,
     RoborockDockTypeCode.saros_r10_dock,
     RoborockDockTypeCode.qrevo_curv_dock,
+    RoborockDockTypeCode.qv_35a_dock,
     RoborockDockTypeCode.qrevo_s5v_dock,
     RoborockDockTypeCode.saros_20_dock,
 ]
diff --git a/tests/data/v1/test_v1_containers.py b/tests/data/v1/test_v1_containers.py
index f8625eb3..44f627d4 100644
--- a/tests/data/v1/test_v1_containers.py
+++ b/tests/data/v1/test_v1_containers.py
@@ -272,6 +272,15 @@ def test_qrevo_s5v_dock_type():
     assert s.dock_type.value == 22
 
 
+def test_qv_35a_dock_type():
+    """Test that dock type code 21 (Roborock QV 35A dock) is properly recognized."""
+    modified_status = STATUS.copy()
+    modified_status["dock_type"] = 21
+    s = S7MaxVStatus.from_dict(modified_status)
+    assert s.dock_type == RoborockDockTypeCode.qv_35a_dock
+    assert s.dock_type.value == 21
+
+
 def test_multi_maps_list_info(snapshot: SnapshotAssertion) -> None:
     """Test that MultiMapsListInfo can be deserialized correctly."""
     data = {
diff --git a/tests/devices/traits/v1/test_dust_collection_mode.py b/tests/devices/traits/v1/test_dust_collection_mode.py
index 1b68304e..5709a2c2 100644
--- a/tests/devices/traits/v1/test_dust_collection_mode.py
+++ b/tests/devices/traits/v1/test_dust_collection_mode.py
@@ -29,6 +29,7 @@ def dust_collection_mode_trait(
         (RoborockDockTypeCode.s8_dock),
         (RoborockDockTypeCode.p10_dock),
         (RoborockDockTypeCode.qrevo_s_dock),
+        (RoborockDockTypeCode.qv_35a_dock),
         (RoborockDockTypeCode.qrevo_s5v_dock),
         (RoborockDockTypeCode.saros_20_dock),
     ],
diff --git a/tests/devices/traits/v1/test_smart_wash_params.py b/tests/devices/traits/v1/test_smart_wash_params.py
index 63ec757f..a1da67a8 100644
--- a/tests/devices/traits/v1/test_smart_wash_params.py
+++ b/tests/devices/traits/v1/test_smart_wash_params.py
@@ -30,6 +30,7 @@ def smart_wash_params_trait(
         (RoborockDockTypeCode.s8_dock),
         (RoborockDockTypeCode.p10_dock),
         (RoborockDockTypeCode.qrevo_s_dock),
+        (RoborockDockTypeCode.qv_35a_dock),
         (RoborockDockTypeCode.qrevo_s5v_dock),
         (RoborockDockTypeCode.saros_20_dock),
     ],
diff --git a/tests/devices/traits/v1/test_wash_towel_mode.py b/tests/devices/traits/v1/test_wash_towel_mode.py
index f3eceea2..24754055 100644
--- a/tests/devices/traits/v1/test_wash_towel_mode.py
+++ b/tests/devices/traits/v1/test_wash_towel_mode.py
@@ -31,6 +31,7 @@ def wash_towel_mode_trait(
         (RoborockDockTypeCode.s8_dock),
         (RoborockDockTypeCode.p10_dock),
         (RoborockDockTypeCode.qrevo_s_dock),
+        (RoborockDockTypeCode.qv_35a_dock),
         (RoborockDockTypeCode.qrevo_s5v_dock),
         (RoborockDockTypeCode.saros_20_dock),
     ],