diff --git a/frontend/src/types.ts b/frontend/src/types.ts
index 1dc8602..b24fdda 100644
--- a/frontend/src/types.ts
+++ b/frontend/src/types.ts
@@ -7,10 +7,17 @@ export interface PortStatus {
   uptime_seconds: number;
   current_file: string;
   codec: string;
+  srt_destinations: string[];
 }
 
 export type CodecType = 'PRORES' | 'DNXHD' | 'UNCOMPRESSED' | 'H264';
 
+export interface SRTDestination {
+  url: string;
+  label: string;
+  enabled: boolean;
+}
+
 export interface RecorderConfig {
   port_index: number;
   codec: CodecType;
@@ -18,7 +25,8 @@ export interface RecorderConfig {
   quality_profile: string;
   recording_path: string;
   srt_enabled: boolean;
-  srt_destination: string;
+  srt_destination: string;         // legacy single (kept for compat)
+  srt_destinations: SRTDestination[]; // multi-destination
   preview_enabled: boolean;
 }
 
@@ -29,6 +37,8 @@ export interface SCTE35Marker {
   splice_immediate: boolean;
   timestamp: string;
   webhook_url: string | null;
+  port_index: number | null;
+  srt_destination_url: string | null;
 }
 
 export interface WebSocketMessage {