CMM (DDR5)
Samsung CMM-D 256GB
High-capacity 256 GB CXL expansion for memory-bound server workloads
Samsung · E3.S 2T · Image: samsung.com
256 GB CXL 2.0 module doubling per-device expansion capacity for in-memory database and tiered-memory deployments.
- Interface
- CXL 2.0
- Form factor
- E3.S 2T
- Capacities
- 256 GB
In the CXL Memory portfolio
The 256 GB CMM-D doubles per-module expansion capacity, letting a handful of E3.S bays add a terabyte of tiered DRAM to a standard two-socket server. The module runs on CXL 2.0 over PCIe 5.0 x8 with the same software-visible NUMA model as its 128 GB sibling.
Primary targets are SAP HANA-class databases, large Redis and Memcached tiers, and recommendation-model serving, where capacity per node dictates fleet size. Telemetry and RAS reporting integrate with server management stacks for production monitoring.
Verified specification
Figures as published by Samsung. Availability and firmware options are confirmed at quotation.
| Interface | CXL 2.0, PCIe 5.0 x8 |
|---|---|
| Form Factor | E3.S 2T |
| Capacity | 256 GB |
| Media | DDR5 DRAM |
| Bandwidth | Up to ~32 GB/s per module |
| Features | Memory tiering, RAS telemetry |
| Target | In-memory DB, caching tiers |
