diff --git a/apollo_fpga/__init__.py b/apollo_fpga/__init__.py
index 29bd19b..76fb450 100644
--- a/apollo_fpga/__init__.py
+++ b/apollo_fpga/__init__.py
@@ -91,13 +91,16 @@ class ApolloDebugger:
 
     backend = None
 
-
-    def __init__(self, force_offline=False, device=None):
-        """ Sets up a connection to the debugger. """
+    def __init__(self, force_offline=False, device=None, ids=None, stub_ids=None):
+        """Set up a connection to the debugger."""
+        if ids is None:
+            ids = self.APOLLO_USB_IDS
+        if stub_ids is None:
+            stub_ids = self.LUNA_USB_IDS
 
         # Try to create a connection to our Apollo debug firmware.
         if device is None:
-            device = self._find_device(self.APOLLO_USB_IDS, custom_match=self._device_has_apollo_id)
+            device = self._find_device(ids, custom_match=self._device_has_apollo_id)
 
         # If Apollo VID/PID is not found, try to find a gateware VID/PID with a valid Apollo stub
         # interface. If found, request the gateware to liberate the USB port. In devices with a
@@ -105,7 +108,7 @@ def __init__(self, force_offline=False, device=None):
         if device is None:
 
             # First, find the candidate device...
-            fpga_device = self._find_device(self.LUNA_USB_IDS, custom_match=self._device_has_stub_iface)
+            fpga_device = self._find_device(stub_ids, custom_match=self._device_has_stub_iface)
             if fpga_device is None:
                 raise DebuggerNotFound("No Apollo debugger or stub interface found.")
             elif not force_offline:
@@ -118,7 +121,7 @@ def __init__(self, force_offline=False, device=None):
                 raise DebuggerNotFound(f"Handoff request failed: {e.strerror}")
 
             # Wait for Apollo to enumerate and try again
-            device = self._find_device(self.APOLLO_USB_IDS, custom_match=self._device_has_apollo_id, timeout=5000)
+            device = self._find_device(ids, custom_match=self._device_has_apollo_id, timeout=5000)
             if device is None:
                 raise DebuggerNotFound("Handoff was requested, but Apollo debugger not found.")