diff --git a/FSUDAQ.cpp b/FSUDAQ.cpp
index ddc9970..635f4ac 100644
--- a/FSUDAQ.cpp
+++ b/FSUDAQ.cpp
@@ -61,7 +61,7 @@ MainWindow::MainWindow(QWidget *parent) : QMainWindow(parent){
 
     cbOpenDigitizers = new RComboBox(this);
     cbOpenDigitizers->addItem("Open Digitizers ... ", 0);
-    cbOpenDigitizers->addItem("Open Digitizers via Optical", 1);
+    cbOpenDigitizers->addItem("Open Digitizers via Optical/USB", 1);
     // cbOpenDigitizers->addItem("Open Digitizers (default program)", 2);
     // cbOpenDigitizers->addItem("Open Digitizers + load Settings", 3);
     //cbOpenDigitizers->addItem("Open Digitizers via USB", 3);
diff --git a/macro.h b/macro.h
index d071d78..32e8f5c 100644
--- a/macro.h
+++ b/macro.h
@@ -1,8 +1,8 @@
 #ifndef MACRO_H
 #define MACRO_H
 
-#define MaxNPorts 4   //for optical link
-#define MaxNBoards 4  //for both optical link and usb
+#define MaxNPorts 1   //for optical link
+#define MaxNBoards 2  //for both optical link and usb
 
 #define MaxNDigitizer MaxNPorts * MaxNBoards