diff --git a/Controllers/PowerColorGPUController/PowerColorGPUControllerDetect.cpp b/Controllers/PowerColorGPUController/PowerColorGPUControllerDetect.cpp
index a32b08f64..f83232910 100644
--- a/Controllers/PowerColorGPUController/PowerColorGPUControllerDetect.cpp
+++ b/Controllers/PowerColorGPUController/PowerColorGPUControllerDetect.cpp
@@ -76,6 +76,7 @@ REGISTER_I2C_PCI_DETECTOR("PowerColor Red Devil RX6800XT",          DetectPowerC
 REGISTER_I2C_PCI_DETECTOR("PowerColor Red Devil RX6900XT",          DetectPowerColorRedDevilGPUControllersV1, AMD_GPU_VEN, AMD_NAVI21_DEV1, POWERCOLOR_SUB_VEN, POWERCOLOR_RED_DEVIL_RX6900XT_SUB_DEV,              0x22);
 REGISTER_I2C_PCI_DETECTOR("PowerColor Red Devil RX6900XT",          DetectPowerColorRedDevilGPUControllersV1, AMD_GPU_VEN, AMD_NAVI21_DEV2, POWERCOLOR_SUB_VEN, POWERCOLOR_RED_DEVIL_RX6900XT_SUB_DEV,              0x22);
 REGISTER_I2C_PCI_DETECTOR("PowerColor Red Devil RX6900XT Ultimate", DetectPowerColorRedDevilGPUControllersV1, AMD_GPU_VEN, AMD_NAVI21_DEV2, POWERCOLOR_SUB_VEN, POWERCOLOR_RED_DEVIL_RX6900XT_ULTIMATE_SUB_DEV,     0x22);
+REGISTER_I2C_PCI_DETECTOR("PowerColor Red Devil RX7900XTX",         DetectPowerColorRedDevilGPUControllersV2, AMD_GPU_VEN, AMD_NAVI31_DEV,  POWERCOLOR_SUB_VEN, POWERCOLOR_RED_DEVIL_RX7900XTX_SUB_DEV,             0x22);
 
 REGISTER_I2C_PCI_DETECTOR("PowerColor Red Devil RX9070XT",          DetectPowerColorRedDevilGPUControllersV2, AMD_GPU_VEN, AMD_NAVI48_DEV,  POWERCOLOR_SUB_VEN, POWERCOLOR_RED_DEVIL_RX9070XT_SUB_DEV,              0x22);
 REGISTER_I2C_PCI_DETECTOR("PowerColor Red Devil RX9070",            DetectPowerColorRedDevilGPUControllersV2, AMD_GPU_VEN, AMD_NAVI48_DEV,  POWERCOLOR_SUB_VEN, POWERCOLOR_RED_DEVIL_RX9070_SUB_DEV,                0x22);
diff --git a/pci_ids/pci_ids.h b/pci_ids/pci_ids.h
index 295879de3..8824b235b 100644
--- a/pci_ids/pci_ids.h
+++ b/pci_ids/pci_ids.h
@@ -960,6 +960,8 @@
 #define POWERCOLOR_RED_DEVIL_RX6750XT_SUB_DEV                   0x2419
 #define POWERCOLOR_RED_DEVIL_RX6950XT_SUB_DEV                   0x2420
 
+#define POWERCOLOR_RED_DEVIL_RX7900XTX_SUB_DEV                  0x2422
+
 #define POWERCOLOR_RED_DEVIL_RX9070XT_SUB_DEV                   0x2435
 #define POWERCOLOR_RED_DEVIL_RX9070_SUB_DEV                     0x2436