diff --git a/src/opensuperclone/clone_gui.c b/src/opensuperclone/clone_gui.c
index 7896d90..e504288 100644
--- a/src/opensuperclone/clone_gui.c
+++ b/src/opensuperclone/clone_gui.c
@@ -3005,6 +3005,7 @@ void display_identify_data_ccc(void)
   GtkWidget *identify_rebuild_assist_checkbox = GTK_WIDGET(gtk_builder_get_object(builder, "identify_rebuild_assist_checkbox"));
   GtkWidget *identify_ncq_checkbox = GTK_WIDGET(gtk_builder_get_object(builder, "identify_ncq_checkbox"));
   GtkWidget *identify_sct_error_recovery_checkbox = GTK_WIDGET(gtk_builder_get_object(builder, "identify_sct_error_recovery_checkbox"));
+  GtkWidget *identify_trim_supported_checkbox = GTK_WIDGET(gtk_builder_get_object(builder, "identify_trim_supported_checkbox"));
 
   GtkWidget *identify_mdma_label = GTK_WIDGET(gtk_builder_get_object(builder, "identify_mdma_label"));
   GtkWidget *identify_mdma_supported_label = GTK_WIDGET(gtk_builder_get_object(builder, "identify_mdma_supported_label"));
@@ -3049,6 +3050,7 @@ void display_identify_data_ccc(void)
   gtk_button_set_label(GTK_BUTTON(identify_rebuild_assist_checkbox), _("Rebuild Assist Supported"));
   gtk_button_set_label(GTK_BUTTON(identify_ncq_checkbox), _("NCQ Supported"));
   gtk_button_set_label(GTK_BUTTON(identify_sct_error_recovery_checkbox), _("SCT Error Recovery Supported"));
+  gtk_button_set_label(GTK_BUTTON(identify_trim_supported_checkbox), _("TRIM Supported"));
   
   gtk_label_set_text(GTK_LABEL(identify_mdma_label), _("Multiword DMA Support"));
   gtk_label_set_text(GTK_LABEL(identify_mdma_supported_label), _("Supported"));
@@ -3088,6 +3090,7 @@ void display_identify_data_ccc(void)
   gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(identify_rebuild_assist_checkbox), identify_device_data_ccc.rebuild_assist_supported);
   gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(identify_ncq_checkbox), identify_device_data_ccc.ncq_supported);
   gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(identify_sct_error_recovery_checkbox), identify_device_data_ccc.sct_error_recovery_control);
+  gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(identify_trim_supported_checkbox), identify_device_data_ccc.trim_supported);
 
   gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(identify_mdma_supported_0_checkbox), identify_device_data_ccc.mdma_mode_0_supported);
   gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(identify_mdma_supported_1_checkbox), identify_device_data_ccc.mdma_mode_1_supported);
diff --git a/src/opensuperclone/clone_gui_common.h b/src/opensuperclone/clone_gui_common.h
index d7e4a5d..32ff530 100644
--- a/src/opensuperclone/clone_gui_common.h
+++ b/src/opensuperclone/clone_gui_common.h
@@ -130,6 +130,7 @@ struct
   bool rebuild_assist_supported;
   bool ncq_supported;
   bool sct_error_recovery_control;
+  bool trim_supported;
   bool mdma_mode_0_supported;
   bool mdma_mode_1_supported;
   bool mdma_mode_2_supported;
diff --git a/src/opensuperclone/opensuperclone.c b/src/opensuperclone/opensuperclone.c
index 915f648..1764037 100644
--- a/src/opensuperclone/opensuperclone.c
+++ b/src/opensuperclone/opensuperclone.c
@@ -13721,6 +13721,7 @@ int process_source_ccc(void)
       identify_flags_ccc.rebuild_assist_supported = get_flag_data_from_identify_ccc(78, 11, 11);
       identify_flags_ccc.ncq_supported = get_flag_data_from_identify_ccc(76, 8, 8);
       identify_flags_ccc.sct_error_recovery_control = get_flag_data_from_identify_ccc(206, 3, 3);
+      identify_flags_ccc.trim_supported = get_flag_data_from_identify_ccc(169, 0, 0);
       identify_flags_ccc.multiword_dma_mode0_supported = get_flag_data_from_identify_ccc(63, 0, 0);
       identify_flags_ccc.multiword_dma_mode1_supported = get_flag_data_from_identify_ccc(63, 1, 1);
       identify_flags_ccc.multiword_dma_mode2_supported = get_flag_data_from_identify_ccc(63, 2, 2);
@@ -13749,6 +13750,7 @@ int process_source_ccc(void)
       identify_device_data_ccc.rebuild_assist_supported = identify_flags_ccc.rebuild_assist_supported;
       identify_device_data_ccc.ncq_supported = identify_flags_ccc.ncq_supported;
       identify_device_data_ccc.sct_error_recovery_control = identify_flags_ccc.sct_error_recovery_control;
+      identify_device_data_ccc.trim_supported = identify_flags_ccc.trim_supported;
       identify_device_data_ccc.mdma_mode_0_supported = identify_flags_ccc.multiword_dma_mode0_supported;
       identify_device_data_ccc.mdma_mode_1_supported = identify_flags_ccc.multiword_dma_mode1_supported;
       identify_device_data_ccc.mdma_mode_2_supported = identify_flags_ccc.multiword_dma_mode2_supported;
diff --git a/src/opensuperclone/opensuperclone.glade b/src/opensuperclone/opensuperclone.glade
index 2be44ec..aee142b 100644
--- a/src/opensuperclone/opensuperclone.glade
+++ b/src/opensuperclone/opensuperclone.glade
@@ -6308,6 +6308,21 @@ no data</property>
                                         <property name="position">3</property>
                                       </packing>
                                     </child>
+                                    <child>
+                                      <object class="GtkCheckButton" id="identify_trim_supported_checkbox">
+                                        <property name="label" translatable="yes">trim supported</property>
+                                        <property name="visible">True</property>
+                                        <property name="sensitive">False</property>
+                                        <property name="can-focus">True</property>
+                                        <property name="receives-default">False</property>
+                                        <property name="draw-indicator">True</property>
+                                      </object>
+                                      <packing>
+                                        <property name="expand">False</property>
+                                        <property name="fill">True</property>
+                                        <property name="position">4</property>
+                                      </packing>
+                                    </child>
                                   </object>
                                   <packing>
                                     <property name="expand">True</property>
diff --git a/src/opensuperclone/opensuperclone.h b/src/opensuperclone/opensuperclone.h
index 0b7d20f..c5546d7 100644
--- a/src/opensuperclone/opensuperclone.h
+++ b/src/opensuperclone/opensuperclone.h
@@ -315,6 +315,7 @@ struct
   bool smart_enabled;                 // word 85 bit 0
   bool hpa_supported;                 // word 82 bit 10
   bool dco_supported;                 // word 83 bit 11
+  bool trim_supported;                // word 169 bit 0
   bool multiword_dma_mode0_supported; // word 63 bit 0
   bool multiword_dma_mode1_supported; // word 63 bit 1
   bool multiword_dma_mode2_supported; // word 63 bit 2