The CMM-H device features Samsung’s high-performance DRAM, coupled with NAND Flash, and a CXL Type 3 interface. These technological characteristics are combined to offer a cost-effective memory expansion device. The motivation behind CMM-H is to combine NAND flash capacity with the CXL load/store memory interface. It presents large NUMA nodes with existing Linux kernel framework and seamlessly integrates with applications without the need for modification. For applications that prioritize capacity, TCO, and throughput over random access latency, CMM-H is a great design choice. As a side benefit, it comes with built-in data persistence to minimize down time during data recovery. Examples include in-memory databases and AI inferencing of large language models.