diff --git a/mitll4master.json b/mitll4master.json
new file mode 100644
index 0000000..a9a2fa3
--- /dev/null
+++ b/mitll4master.json
@@ -0,0 +1,35 @@
+{
+    "target": "kasli",
+    "variant": "mitll4master",
+    "hw_rev": "v1.1",
+    "base": "master",
+    "core_addr": "192.168.1.75",
+    "peripherals": [
+        {
+            "type": "urukul",
+            "dds": "ad9910",
+            "ports": [0, 1],
+            "clk_sel": 2
+        },
+        {
+            "type": "urukul",
+            "dds": "ad9910",
+            "ports": [2, 3],
+            "clk_sel": 2
+        },
+        {
+            "type": "urukul",
+            "dds": "ad9910",
+            "ports": [4, 5],
+            "clk_sel": 2
+        },
+        {
+            "type": "zotino",
+            "ports": [6]
+        },
+        {
+            "type": "zotino",
+            "ports": [7]
+        }
+    ]
+}
diff --git a/mitll4satellite.json b/mitll4satellite.json
new file mode 100644
index 0000000..0b83845
--- /dev/null
+++ b/mitll4satellite.json
@@ -0,0 +1,30 @@
+{
+    "target": "kasli",
+    "variant": "mitll4satellite",
+    "hw_rev": "v1.1",
+    "base": "satellite",
+    "peripherals": [
+        {
+            "type": "grabber",
+            "ports": [0, 1]
+        },
+        {
+            "type": "dio",
+            "ports": [2],
+            "bank_direction_low": "output",
+            "bank_direction_high": "output"
+        },
+        {
+            "type": "dio",
+            "ports": [3],
+            "bank_direction_low": "output",
+            "bank_direction_high": "output"
+        },
+        {
+            "type": "dio",
+            "ports": [4],
+            "bank_direction_low": "output",
+            "bank_direction_high": "input"
+        }
+    ]
+}