diff --git a/i2c-vr/mps/mpx9xx.hpp b/i2c-vr/mps/mpx9xx.hpp
new file mode 100644
index 0000000..3de9b17
--- /dev/null
+++ b/i2c-vr/mps/mpx9xx.hpp
@@ -0,0 +1,67 @@
+#pragma once
+
+#include "common/include/pmbus.hpp"
+#include "mps.hpp"
+
+namespace phosphor::software::VR
+{
+
+enum class MPX9XXCmd : uint8_t;
+
+/**
+ * @class MPX9XX
+ * @brief Base class for MPX9XX voltage regulators
+ *
+ * Provides common firmware update steps such as unlocking write protection,
+ * programming registers, storing/restoring NVM data, and CRC checks.
+ * Derived classes only need to provide the Config ID command.
+ */
+class MPX9XX : public MPSVoltageRegulator
+{
+  public:
+    MPX9XX(sdbusplus::async::context& ctx, uint16_t bus, uint16_t address) :
+        MPSVoltageRegulator(ctx, bus, address)
+    {}
+
+    sdbusplus::async::task<bool> verifyImage(const uint8_t* image,
+                                             size_t imageSize) final;
+    sdbusplus::async::task<bool> updateFirmware(bool force) final;
+    sdbusplus::async::task<bool> getCRC(uint32_t* checksum) final;
+    sdbusplus::async::task<bool> parseDeviceConfiguration() final;
+    bool forcedUpdateAllowed() final;
+
+  private:
+    sdbusplus::async::task<bool> checkId(MPX9XXCmd idCmd, uint32_t expected);
+    sdbusplus::async::task<bool> unlockWriteProtect();
+    sdbusplus::async::task<bool> disableStoreFaultTriggering();
+    sdbusplus::async::task<bool> setMultiConfigAddress(uint8_t config);
+    sdbusplus::async::task<bool> programConfigData(
+        const std::vector<MPSData>& gdata);
+    sdbusplus::async::task<bool> programAllRegisters();
+    sdbusplus::async::task<bool> storeDataIntoMTP();
+    sdbusplus::async::task<bool> restoreDataFromNVM();
+    sdbusplus::async::task<bool> checkMTPCRC();
+
+  protected:
+    virtual MPX9XXCmd getConfigIdCmd() const = 0;
+};
+
+class MP292X : public MPX9XX
+{
+  public:
+    using MPX9XX::MPX9XX;
+
+  protected:
+    MPX9XXCmd getConfigIdCmd() const final;
+};
+
+class MP994X : public MPX9XX
+{
+  public:
+    using MPX9XX::MPX9XX;
+
+  protected:
+    MPX9XXCmd getConfigIdCmd() const final;
+};
+
+} // namespace phosphor::software::VR