diff --git a/artiq/examples/kasli_tester/device_db.py b/artiq/examples/kasli_tester/device_db.py
index bcffa8fa2..96cd249e8 100644
--- a/artiq/examples/kasli_tester/device_db.py
+++ b/artiq/examples/kasli_tester/device_db.py
@@ -189,156 +189,18 @@ device_db["zotino0"] = {
 }
 
 
-# Grabber (EEM6) starting at RTIO channel 25
-device_db["grabber0"] = {
-    "type": "local",
-    "module": "artiq.coredevice.grabber",
-    "class": "Grabber",
-    "arguments": {"channel_base": 25}
-}
-
-
-# Urukul (EEM7) starting at RTIO channel 27
-device_db.update(
-    spi_urukul1={
-        "type": "local",
-        "module": "artiq.coredevice.spi2",
-        "class": "SPIMaster",
-        "arguments": {"channel": 27}
-    },
-    ttl_urukul1_sync={
-        "type": "local",
-        "module": "artiq.coredevice.ttl",
-        "class": "TTLClockGen",
-        "arguments": {"channel": 28, "acc_width": 4}
-    },
-    ttl_urukul1_io_update={
-        "type": "local",
-        "module": "artiq.coredevice.ttl",
-        "class": "TTLOut",
-        "arguments": {"channel": 29}
-    },
-    urukul1_cpld={
-        "type": "local",
-        "module": "artiq.coredevice.urukul",
-        "class": "CPLD",
-        "arguments": {
-            "spi_device": "spi_urukul1",
-            "io_update_device": "ttl_urukul1_io_update",
-            "sync_device": "ttl_urukul1_sync",
-            "refclk": 100e6,
-            "clk_sel": 1
-        }
-    }
-)
-
-for i in range(4):
-    device_db["urukul1_ch" + str(i)] = {
-        "type": "local",
-        "module": "artiq.coredevice.ad9912",
-        "class": "AD9912",
-        "arguments": {
-            "pll_n": 10,
-            "chip_select": 4 + i,
-            "cpld_device": "urukul1_cpld"
-        }
-    }
-
-
-# DIO (EEM8) starting at RTIO channel 30
-for i in range(8):
-    device_db["ttl" + str(8 + i)] = {
-        "type": "local",
-        "module": "artiq.coredevice.ttl",
-        "class": "TTLOut",
-        "arguments": {"channel": 30 + i},
-    }
-
-
-# DIO (EEM9) starting at RTIO channel 38
-for i in range(8):
-    device_db["ttl" + str(16 + i)] = {
-        "type": "local",
-        "module": "artiq.coredevice.ttl",
-        "class": "TTLOut",
-        "arguments": {"channel": 38 + i},
-    }
-
-
-# Sampler (EEM10) starting at RTIO channel 46
-device_db["spi_sampler1_adc"] = {
-    "type": "local",
-    "module": "artiq.coredevice.spi2",
-    "class": "SPIMaster",
-    "arguments": {"channel": 46}
-}
-device_db["spi_sampler1_pgia"] = {
-    "type": "local",
-    "module": "artiq.coredevice.spi2",
-    "class": "SPIMaster",
-    "arguments": {"channel": 47}
-}
-device_db["spi_sampler1_cnv"] = {
-    "type": "local",
-    "module": "artiq.coredevice.ttl",
-    "class": "TTLOut",
-    "arguments": {"channel": 48},
-}
-device_db["sampler1"] = {
-    "type": "local",
-    "module": "artiq.coredevice.sampler",
-    "class": "Sampler",
-    "arguments": {
-        "spi_adc_device": "spi_sampler1_adc",
-        "spi_pgia_device": "spi_sampler1_pgia",
-        "cnv_device": "spi_sampler1_cnv"
-    }
-}
-
-
-# Zotino (EEM11) starting at RTIO channel 49
-device_db["spi_zotino1"] = {
-    "type": "local",
-    "module": "artiq.coredevice.spi2",
-    "class": "SPIMaster",
-    "arguments": {"channel": 49}
-}
-device_db["ttl_zotino1_ldac"] = {
-    "type": "local",
-    "module": "artiq.coredevice.ttl",
-    "class": "TTLOut",
-    "arguments": {"channel": 50}
-}
-device_db["ttl_zotino1_clr"] = {
-    "type": "local",
-    "module": "artiq.coredevice.ttl",
-    "class": "TTLOut",
-    "arguments": {"channel": 51}
-}
-device_db["zotino1"] = {
-    "type": "local",
-    "module": "artiq.coredevice.zotino",
-    "class": "Zotino",
-    "arguments": {
-        "spi_device": "spi_zotino1",
-        "ldac_device": "ttl_zotino1_ldac",
-        "clr_device": "ttl_zotino1_clr"
-    }
-}
-
-
 device_db.update(
     led0={
         "type": "local",
         "module": "artiq.coredevice.ttl",
         "class": "TTLOut",
-        "arguments": {"channel": 52}
+        "arguments": {"channel": 25}
     },
     led1={
         "type": "local",
         "module": "artiq.coredevice.ttl",
         "class": "TTLOut",
-        "arguments": {"channel": 53}
+        "arguments": {"channel": 26}
     },
 )
 
diff --git a/artiq/gateware/targets/kasli.py b/artiq/gateware/targets/kasli.py
index 46cb578e1..8c17c765a 100755
--- a/artiq/gateware/targets/kasli.py
+++ b/artiq/gateware/targets/kasli.py
@@ -774,7 +774,6 @@ class Tester(_StandaloneBase):
             self.comb += self.platform.request("clk_sel").eq(1)
 
         self.rtio_channels = []
-        self.grabber_csr_group = []
         eem.DIO.add_std(self, 5,
             ttl_serdes_7series.InOut_8X, ttl_serdes_7series.Output_8X,
             edge_counter_cls=edge_counter.SimpleEdgeCounter)
@@ -782,15 +781,6 @@ class Tester(_StandaloneBase):
                            ttl_simple.ClockGen)
         eem.Sampler.add_std(self, 3, 2, ttl_serdes_7series.Output_8X)
         eem.Zotino.add_std(self, 4, ttl_serdes_7series.Output_8X)
-        eem.Grabber.add_std(self, 6)
-        eem.Urukul.add_std(self, 7, None, ttl_serdes_7series.Output_8X,
-                           ttl_simple.ClockGen)
-        eem.DIO.add_std(self, 8,
-            ttl_serdes_7series.Output_8X, ttl_serdes_7series.Output_8X)
-        eem.DIO.add_std(self, 9,
-            ttl_serdes_7series.Output_8X, ttl_serdes_7series.Output_8X)
-        eem.Sampler.add_std(self, 10, None, ttl_serdes_7series.Output_8X)
-        eem.Zotino.add_std(self, 11, ttl_serdes_7series.Output_8X)
 
         for i in (1, 2):
             sfp_ctl = self.platform.request("sfp_ctl", i)
@@ -803,11 +793,6 @@ class Tester(_StandaloneBase):
         self.rtio_channels.append(rtio.LogChannel())
         self.add_rtio(self.rtio_channels)
 
-        self.config["HAS_GRABBER"] = None
-        self.add_csr_group("grabber", self.grabber_csr_group)
-        self.platform.add_false_path_constraints(
-            self.rtio_crg.cd_rtio.clk, self.grabber0.deserializer.cd_cl.clk)
-
 
 class _RTIOClockMultiplier(Module, AutoCSR):
     def __init__(self, rtio_clk_freq):