diff --git a/ptb3master.json b/ptb3master.json
new file mode 100644
index 0000000..864b5b3
--- /dev/null
+++ b/ptb3master.json
@@ -0,0 +1,73 @@
+{
+    "_description": "PTB 4.43 with backplane adapter and 4 Urukuls",
+    "target": "kasli",
+    "variant": "ptb3master",
+    "hw_rev": "v2.0",
+    "base": "master",
+    "_ext_ref_frequency": 100e6,
+    "core_addr": "10.34.16.100",
+    "peripherals": [
+        {
+            "type": "dio",
+            "ports": [0],
+            "board": "DIO_SMA",
+            "hw_rev": "v1.1",
+            "bank_direction_low": "input",
+            "bank_direction_high": "output"
+        },
+        {
+            "type": "dio",
+            "ports": [1],
+            "board": "DIO_SMA",
+            "hw_rev": "v1.1",
+            "bank_direction_low": "output",
+            "bank_direction_high": "output"
+        },
+        {
+            "type": "dio",
+            "ports": [2],
+            "board": "DIO_SMA",
+            "hw_rev": "v1.1",
+            "bank_direction_low": "output",
+            "bank_direction_high": "output"
+        },
+        {
+            "type": "sampler",
+            "ports": [3]
+        },
+        {
+            "type": "urukul",
+            "ports": [5, 4],
+            "dds": "ad9912",
+            "clk_sel": 1,
+            "refclk": 100e6,
+            "pll_n": 10
+        },
+        {
+            "type": "urukul",
+            "ports": [6],
+            "clk_sel": 1,
+            "refclk": 100e6,
+            "pll_n": 40
+        },
+        {
+            "type": "zotino",
+            "ports": [7]
+        },
+        {
+            "type": "urukul",
+            "ports": [9, 8],
+            "dds": "ad9912",
+            "clk_sel": 1,
+            "refclk": 100e6,
+            "pll_n": 10
+        },
+        {
+            "type": "urukul",
+            "ports": [11, 10],
+            "clk_sel": 1,
+            "refclk": 100e6,
+            "pll_n": 40
+        }
+   ]
+}
diff --git a/ptb3satellite.json b/ptb3satellite.json
new file mode 100644
index 0000000..1cfadbb
--- /dev/null
+++ b/ptb3satellite.json
@@ -0,0 +1,38 @@
+{
+    "_description": "PTB 4.43 satellite",
+    "target": "kasli",
+    "variant": "ptb3satellite",
+    "hw_rev": "v2.0",
+    "base": "satellite",
+    "core_addr": "10.34.16.100",
+    "vendor": "QUARTIQ",
+    "peripherals": [
+        {
+            "type": "dio",
+            "board": "DIO_SMA",
+            "hw_rev": "v1.1",
+            "ports": [
+                0
+            ],
+            "bank_direction_low": "output",
+            "bank_direction_high": "output"
+        },
+        {
+            "type": "dio",
+            "board": "DIO_SMA",
+            "hw_rev": "v1.1",
+            "ports": [
+                1
+            ],
+            "bank_direction_low": "output",
+            "bank_direction_high": "output"
+        },
+        {
+            "type": "zotino",
+            "hw_rev": "v1.3",
+            "ports": [
+                2
+            ]
+        }
+    ]
+}