diff --git a/static/js/shop.jsx b/static/js/shop.jsx
index 72e9901..12adf3f 100644
--- a/static/js/shop.jsx
+++ b/static/js/shop.jsx
@@ -6,7 +6,7 @@ import { createRoot } from "react-dom/client";
 import PropTypes from "prop-types";
 import { DragDropContext, Droppable, Draggable } from "react-beautiful-dnd";
 import { v4 as uuidv4 } from 'uuid';
-import { OptionsDialogPopup, OptionsSummaryPopup } from "./shop_components.jsx";import { OverlayTrigger } from "react-bootstrap";
+import { OptionsDialogPopup, OptionsSummaryPopup, fill_ext_data } from "./shop_components.jsx";import { OverlayTrigger } from "react-bootstrap";
 
 const data = window.shop_data;
 const itemsUnfoldedList = Array.from(data.columns.backlog.categories.map(groupId => groupId.itemIds).flat());
@@ -538,6 +538,7 @@ class ProductCartItem extends React.PureComponent {
       index: PropTypes.number.isRequired,
       model: PropTypes.object.isRequired,
       data: PropTypes.object,
+      ext_data: PropTypes.object,
       onToggleOverlayRemove: PropTypes.func,
       onClickRemoveItem: PropTypes.func,
       onClickItem: PropTypes.func,
@@ -591,6 +592,7 @@ class ProductCartItem extends React.PureComponent {
       model,
       data,
       index,
+      ext_data,
     } = this.props;
 
     let warning, options, options_data;
@@ -608,6 +610,7 @@ class ProductCartItem extends React.PureComponent {
       options = data.options;
       if (!data.options_data) data.options_data = {};
       options_data = data.options_data;
+      options_data.ext_data = ext_data;
     }
 
     let render_progress;
@@ -702,7 +705,7 @@ class ProductCartItem extends React.PureComponent {
                   data={options_data}
                   key={"popover" + index}
                   id={"popover" + index}
-                  big={data.size == "big"}
+                  big={data.size === "big"}
                   target={{
                     construct: ((outvar, value) => {
                       //console.log("construct", outvar, value, options_data);
@@ -867,6 +870,7 @@ class Cart extends React.PureComponent {
 
     const products = data.items.map((item, index) => {
       let itemData;
+      let ext_data = fill_ext_data(data.itemsData, index);
       if (data.itemsData && index in data.itemsData) {
         itemData = data.itemsData[index];
       }
@@ -880,6 +884,7 @@ class Cart extends React.PureComponent {
             id={item.id}
             index={index}
             data={itemData}
+            ext_data={ext_data}
             onToggleOverlayRemove={onToggleOverlayRemove}
             onClickRemoveItem={onClickRemoveItem}
             onClickItem={onClickItem}
diff --git a/static/js/shop_components.jsx b/static/js/shop_components.jsx
index 3af8e87..c0d1224 100644
--- a/static/js/shop_components.jsx
+++ b/static/js/shop_components.jsx
@@ -436,12 +436,22 @@ export function OptionsSummaryPopup({id, data}) {
                  className="overlayVariant card border rounded"
                  id={id}>
                 <div className="card-body">
-                    {Array.from(Object.entries(data).map(([key, value], _) => {
-                        return (<p className="card-text" key={id + key}><i>{key}</i>: {stringify(value)}</p>);
-                    }))}
+                    {Array.from(Object.entries(data)
+                        .filter(([key, value], _) => key !== "ext_data")
+                        .map(([key, value], _) => {
+                            return (<p className="card-text" key={id + key}><i>{key}</i>: {stringify(value)}</p>);
+                        }))}
                 </div>
             </div>
         </div>
     );
 }
 
+export function fill_ext_data(data, index) {
+    return {
+        has_other_dio: data.filter((value, item_index) => index !== item_index && value.name.endsWith("-TTL")).length > 0,
+        has_dds: data.filter(((value, _) => value.name === "DDS" )).length > 0,
+        has_sampler: data.filter(((value, _) => value.name === "Sampler" )).length > 0
+    }
+}
+
diff --git a/static/js/shop_data.js b/static/js/shop_data.js
index 505327c..0e4c44e 100644
--- a/static/js/shop_data.js
+++ b/static/js/shop_data.js
@@ -287,7 +287,17 @@ const shop_data = {
       slotOccupied: 1,
       clockOccupied: 0,
       options: [
-        {type: "Switch", args: {title: "Output first group", outvar: "out_first_group", tip: "Switch connectors 0-3 to output"}},
+        {
+          "if": [
+            {"var": "ext_data.has_other_dio"},
+            [
+              {type: "Switch", args: {title: "Output first group", fallback: true, outvar: "out_first_group", tip: "Switch connectors 0-3 to output"}}
+            ],
+            [
+              {type: "Switch", args: {title: "Output first group", outvar: "out_first_group", tip: "Switch connectors 0-3 to output"}}
+            ]
+          ]
+        },
         {type: "Switch", args: {title: "Output second group", outvar: "out_second_group", fallback: true, tip: "Switch connectors 4-7 to output"}}
       ],
       rules: {
@@ -312,7 +322,17 @@ const shop_data = {
       datasheet_file: '/docs/sinara-datasheets/2118-2128.pdf',
       datasheet_name: '2118/2128 BNC/SMA-TTL datasheet',
       options: [
-        {type: "Switch", args: {title: "Output first group", outvar: "out_first_group", tip: "Switch connectors 0-3 to output"}},
+        {
+          "if": [
+            {"var": "ext_data.has_other_dio"},
+            [
+              {type: "Switch", args: {title: "Output first group", fallback: true, outvar: "out_first_group", tip: "Switch connectors 0-3 to output"}}
+            ],
+            [
+              {type: "Switch", args: {title: "Output first group", outvar: "out_first_group", tip: "Switch connectors 0-3 to output"}}
+            ]
+          ]
+        },
         {type: "Switch", args: {title: "Output second group", outvar: "out_second_group", fallback: true, tip: "Switch connectors 4-7 to output"}}
       ],
       size: 'small',
@@ -349,7 +369,17 @@ const shop_data = {
       datasheet_file: '/docs/sinara-datasheets/2238.pdf',
       datasheet_name: '2238 MCX-TTL datasheet',
       options: [
-        {type: "Switch", args: {title: "Output first group", outvar: "out_first_group", tip: "Switch connectors 0-3 to output"}},
+        {
+          "if": [
+            {"var": "ext_data.has_other_dio"},
+            [
+              {type: "Switch", args: {title: "Output first group", fallback: true, outvar: "out_first_group", tip: "Switch connectors 0-3 to output"}}
+            ],
+            [
+              {type: "Switch", args: {title: "Output first group", outvar: "out_first_group", tip: "Switch connectors 0-3 to output"}}
+            ]
+          ]
+        },
         {type: "Switch", args: {title: "Output second group", outvar: "out_second_group", fallback: true, tip: "Switch connectors 4-7 to output"}},
         {type: "Switch", args: {title: "Output third group", outvar: "out_third_group", fallback: true, tip: "Switch connectors 8-11 to output"}},
         {type: "Switch", args: {title: "Output fourth group", outvar: "out_fourth_group", fallback: true, tip: "Switch connectors 12-15 to output"}}
@@ -440,7 +470,13 @@ const shop_data = {
                     null,
                     [
                       {type: "SwitchLine", args: {title: "Ext CLK", outvar: "ext_clk", fallback: {text: "125 MHz", checked: false}}},
-                      {type: "Switch", args: {title: "SUServo mode", outvar: "suservo", }}
+                      {
+                        "if": [
+                          {"var": "ext_data.has_sampler"},
+                          {type: "Switch", args: {title: "SUServo mode", outvar: "suservo"}},
+                            null
+                        ]
+                      }
                     ]
                 ]
               }
@@ -750,7 +786,13 @@ const shop_data = {
         'Supports SU-Servo laser intensity stabilization servo in conjunction with Urukul.'
       ],
       options: [
-        {type: "Switch", args: {title: "SUServo mode", outvar: "suservo"}}
+        {
+          "if": [
+            {"var": "ext_data.has_dds"},
+            {type: "Switch", args: {title: "SUServo mode", outvar: "suservo"}},
+            null
+          ]
+        }
       ],
       size: 'big',
       type: 'novo',