diff --git a/meshtastic/mesh.proto b/meshtastic/mesh.proto
index 33f81a5..ecb8803 100644
--- a/meshtastic/mesh.proto
+++ b/meshtastic/mesh.proto
@@ -850,6 +850,11 @@ enum HardwareModel {
    */
   TBEAM_1_WATT = 122;
 
+  /*
+   * LilyGo T5 S3 ePaper Pro (V1 and V2)
+   */
+  T5_S3_EPAPER_PRO = 123;
+
   /*
    * ------------------------------------------------------------------------------------------------------------------------------------------
    * Reserved ID For developing private Ports. These will show up in live traffic sparsely, so we can use a high number. Keep it within 8 bits.