diff --git a/CHANGELOG.md b/CHANGELOG.md
index 16f7c92e4..330588006 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -18,6 +18,7 @@
 - Add Ethernet Controller detection to build
 - Resolve i210/i225 NIC support on pre-Ivy Macs
 - Resolve AirPlay to Mac support on Skylake+ Macs in 12.3 Beta 2+
+- Resolve SDXC support in Monterey for Pre-Ivy Bridge Macs
 
 ## 0.4.2
 - Resolve app crashing on some 3rd party SAS/SATA controllers
diff --git a/payloads/Config/config.plist b/payloads/Config/config.plist
index dffedc522..4aa2950bd 100644
--- a/payloads/Config/config.plist
+++ b/payloads/Config/config.plist
@@ -501,6 +501,24 @@
 				<key>PlistPath</key>
 				<string>Contents/Info.plist</string>
 			</dict>
+			<dict>
+				<key>Arch</key>
+				<string>x86_64</string>
+				<key>Comment</key>
+				<string>SDXC Patch for Pre-Ivy</string>
+				<key>Enabled</key>
+				<false/>
+				<key>MaxKernel</key>
+				<string></string>
+				<key>MinKernel</key>
+				<string>21.0.0</string>
+				<key>BundlePath</key>
+				<string>BigSurSDXC.kext</string>
+				<key>ExecutablePath</key>
+				<string>Contents/MacOS/BigSurSDXC</string>
+				<key>PlistPath</key>
+				<string>Contents/Info.plist</string>
+			</dict>
 			<dict>
 				<key>Arch</key>
 				<string>x86_64</string>
diff --git a/payloads/Kexts/Misc/BigSurSDXC-v1.0.0.zip b/payloads/Kexts/Misc/BigSurSDXC-v1.0.0.zip
new file mode 100644
index 000000000..9c2fb4ef4
Binary files /dev/null and b/payloads/Kexts/Misc/BigSurSDXC-v1.0.0.zip differ
diff --git a/resources/build.py b/resources/build.py
index bdf0b6411..8083240ec 100644
--- a/resources/build.py
+++ b/resources/build.py
@@ -407,6 +407,16 @@ class BuildOpenCore:
             self.get_item_by_kv(self.config["ACPI"]["Patch"], "Comment", "BUF0 to BUF1")["Enabled"] = True
             shutil.copy(self.constants.windows_ssdt_path, self.constants.acpi_path)
 
+        # With macOS Monterey, Apple's SDXC driver requires the system to support VT-D
+        # However pre-Ivy Bridge don't support this feature
+        # Big Sur's AppleSDXC driver only supported 14e4:16bc, so ignore other devices (avoids false positives from class code parsing)
+        if smbios_data.smbios_dictionary[self.model]["CPU Generation"] <= cpu_data.cpu_data.sandy_bridge.value:
+            if (
+                (self.constants.computer.sdxc_controller and not self.constants.custom_model and self.constants.computer.sdxc_controller.vendor_id == 0x14e4 and self.constants.computer.sdxc_controller.device_id == 0x16bc) or
+                (self.model.startswith("MacBookPro8") or self.model.startswith("Macmini5"))
+            ):
+                self.enable_kext("BigSurSDXC.kext", self.constants.bigsursdxc_version, self.constants.bigsursdxc_path)
+
         # USB Map
         usb_map_path = Path(self.constants.plist_folder_path) / Path("AppleUSBMaps/Info.plist")
         if (
diff --git a/resources/constants.py b/resources/constants.py
index f58c9f701..759f0c8e4 100644
--- a/resources/constants.py
+++ b/resources/constants.py
@@ -62,6 +62,7 @@ class Constants:
         self.io80211elcap_version = "2.0.0"  #       IO80211ElCap
         self.io80211high_sierra_version = "1.0.1"  # IO80211HighSierra
         self.io80211mojave_version = "1.0.1"  #      IO80211Mojave
+        self.bigsursdxc_version = "1.0.0"  #         BigSurSDXC
 
         ## Dortania
         ## https://github.com/dortania
@@ -299,6 +300,10 @@ class Constants:
     @property
     def mce_path(self):
         return self.payload_kexts_path / Path(f"Misc/AppleMCEReporterDisabler-v{self.mce_version}.zip")
+    
+    @property
+    def bigsursdxc_path(self):
+        return self.payload_kexts_path / Path(f"Misc/BigSurSDXC-v{self.bigsursdxc_version}.zip")
 
     @property
     def mousse_path(self):
diff --git a/resources/device_probe.py b/resources/device_probe.py
index faac6c790..0b1ddd904 100644
--- a/resources/device_probe.py
+++ b/resources/device_probe.py
@@ -186,6 +186,10 @@ class OHCIController(PCIDevice):
 class UHCIController(PCIDevice):
     CLASS_CODE: ClassVar[int] = 0x0c0300
 
+@dataclass
+class SDXCController(PCIDevice):
+    CLASS_CODE: ClassVar[int] = 0x080501
+
 @dataclass
 class NVIDIA(GPU):
     VENDOR_ID: ClassVar[int] = 0x10DE
@@ -465,6 +469,7 @@ class Computer:
     dgpu: Optional[GPU] = None  # Shortcut for GFX0
     storage: list[PCIDevice] = field(default_factory=list)
     usb_controllers: list[PCIDevice] = field(default_factory=list)
+    sdxc_controller: list[PCIDevice] = field(default_factory=list)
     ethernet: Optional[EthernetController] = field(default_factory=list)
     wifi: Optional[WirelessCard] = None
     cpu: Optional[CPU] = None
@@ -483,6 +488,7 @@ class Computer:
         computer.wifi_probe()
         computer.storage_probe()
         computer.usb_controller_probe()
+        computer.sdxc_controller_probe()
         computer.ethernet_probe()
         computer.smbios_probe()
         computer.cpu_probe()
@@ -550,6 +556,19 @@ class Computer:
             self.ambient_light_sensor = True
             ioreg.IOObjectRelease(device)
     
+    def sdxc_controller_probe(self):
+        sdxc_controllers = ioreg.ioiterator_to_list(
+            ioreg.IOServiceGetMatchingServices(
+                ioreg.kIOMasterPortDefault,
+                {"IOProviderClass": "IOPCIDevice", "IOPropertyMatch": [{"class-code": binascii.a2b_hex(utilities.hexswap(hex(SDXCController.CLASS_CODE)[2:].zfill(8)))}]},
+                None,
+            )[1]
+        )
+
+        for device in sdxc_controllers:
+            self.sdxc_controller.append(SDXCController.from_ioregistry(device))
+            ioreg.IOObjectRelease(device)
+
     def usb_controller_probe(self):
         xhci_controllers = ioreg.ioiterator_to_list(
             ioreg.IOServiceGetMatchingServices(